| <html> | 
 | <head> | 
 | <div height="0" hidden="true"> | 
 | <div id="fuzz763_1026368"> | 
 |   RunTestSet [fuzz763_1026368] | 
 |  | 
 | {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}}, | 
 | {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}}, | 
 | {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}}, | 
 | {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}}, | 
 | {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}}, | 
 | {{38.6447449,38.6689377}, {38.6394348,38.6742554}, {38.6341171,38.6795731}}, | 
 | {{38.6341171,38.6795731}, {38.6284409,38.6852493}, {38.6227531,38.6909218}}, | 
 | {{38.6227531,38.6909218}, {36.2775421,41.0320053}, {32.9638329,41.0290833}}, | 
 | {{32.9638329,41.0290833}, {29.6501274,41.0261612}, {27.3090477,38.6809464}}, | 
 | {{27.3090477,38.6809464}, {24.9679718,36.3357391}, {24.9708939,33.0220299}}, | 
 | {{24.9708939,33.0220299}, {24.973814,29.7083225}, {27.319025,27.3672428}}, | 
 | {{27.319025,27.3672428}, {27.3209743,27.3652973}, {27.3229256,27.3633518}}, | 
 | {{27.3229256,27.3633518}, {27.324995,27.3612823}, {27.3270645,27.3592148}}, | 
 | {{27.3270645,27.3592148}, {27.3312511,27.355032}, {27.3354416,27.3508568}}, | 
 | {{27.3354416,27.3508568}, {27.3332844,27.3530178}, {27.331131,27.3551788}}, | 
 | {{27.331131,27.3551788}, {27.3369579,27.3493824}, {27.3431988,27.3431988}}, | 
 | {{27.3431988,27.3431988}, {27.3431454,27.3431454}}, | 
 | {{38.6398277,38.6738319}, {38.6447258,38.6689186}}, | 
 | {{38.6447258,38.6689186}, {38.6447449,38.6689377}}, | 
 | {{38.6447449,38.6689377}, {38.6422882,38.6713867}, {38.6398277,38.6738319}}, | 
 | op union | 
 | {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}}, | 
 | {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}}, | 
 | {{33,41}, {29.6862907,41}, {27.3431454,38.6568527}}, | 
 | {{27.3431454,38.6568527}, {25,36.3137093}, {25,33}}, | 
 | {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}}, | 
 | {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}}, | 
 | {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}}, | 
 | {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}}, | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} {{33,25}} wnTs[0]=0 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} | 
 | debugShowQuadLineIntersection wtTs[0]=0 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} {{27.3431454,27.3431454}} wnTs[0]=1 {{27.3431988,27.3431988}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} {{38.6568527,27.3431454}} wnTs[0]=0 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} {{41,33}} wnTs[0]=0 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} {{38.6568527,38.6568527}} wnTs[0]=0 {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}} {{38.6447449,38.6689377}} wnTs[0]=0 {{38.6447449,38.6689377}, {38.6394348,38.6742554}, {38.6341171,38.6795731}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6447449,38.6689377}, {38.6394348,38.6742554}, {38.6341171,38.6795731}} {{38.6341171,38.6795731}} wnTs[0]=0 {{38.6341171,38.6795731}, {38.6284409,38.6852493}, {38.6227531,38.6909218}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6341171,38.6795731}, {38.6284409,38.6852493}, {38.6227531,38.6909218}} {{38.6227531,38.6909218}} wnTs[0]=0 {{38.6227531,38.6909218}, {36.2775421,41.0320053}, {32.9638329,41.0290833}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6227531,38.6909218}, {36.2775421,41.0320053}, {32.9638329,41.0290833}} {{32.9638329,41.0290833}} wnTs[0]=0 {{32.9638329,41.0290833}, {29.6501274,41.0261612}, {27.3090477,38.6809464}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{32.9638329,41.0290833}, {29.6501274,41.0261612}, {27.3090477,38.6809464}} {{27.3090477,38.6809464}} wnTs[0]=0 {{27.3090477,38.6809464}, {24.9679718,36.3357391}, {24.9708939,33.0220299}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3090477,38.6809464}, {24.9679718,36.3357391}, {24.9708939,33.0220299}} {{24.9708939,33.0220299}} wnTs[0]=0 {{24.9708939,33.0220299}, {24.973814,29.7083225}, {27.319025,27.3672428}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{24.9708939,33.0220299}, {24.973814,29.7083225}, {27.319025,27.3672428}} {{27.319025,27.3672428}} wnTs[0]=0 {{27.319025,27.3672428}, {27.3209743,27.3652973}, {27.3229256,27.3633518}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.319025,27.3672428}, {27.3209743,27.3652973}, {27.3229256,27.3633518}} {{27.3229256,27.3633518}} wnTs[0]=0 {{27.3229256,27.3633518}, {27.324995,27.3612823}, {27.3270645,27.3592148}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3229256,27.3633518}, {27.324995,27.3612823}, {27.3270645,27.3592148}} {{27.3270645,27.3592148}} wnTs[0]=0 {{27.3270645,27.3592148}, {27.3312511,27.355032}, {27.3354416,27.3508568}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3270645,27.3592148}, {27.3312511,27.355032}, {27.3354416,27.3508568}} {{27.3354416,27.3508568}} wnTs[0]=0 {{27.3354416,27.3508568}, {27.3332844,27.3530178}, {27.331131,27.3551788}} | 
 | debugShowQuadIntersection no intersect {{27.3270645,27.3592148}, {27.3312511,27.355032}, {27.3354416,27.3508568}} {{27.331131,27.3551788}, {27.3369579,27.3493824}, {27.3431988,27.3431988}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3354416,27.3508568}, {27.3332844,27.3530178}, {27.331131,27.3551788}} {{27.331131,27.3551788}} wnTs[0]=0 {{27.331131,27.3551788}, {27.3369579,27.3493824}, {27.3431988,27.3431988}} | 
 | debugShowQuadLineIntersection wtTs[0]=1 {{27.331131,27.3551788}, {27.3369579,27.3493824}, {27.3431988,27.3431988}} {{27.3431988,27.3431988}} wnTs[0]=0 {{27.3431988,27.3431988}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} {{27.3431454,27.3431454}} wnTs[0]=1 {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} {{27.3431454,27.3431454}} wtTs[1]=1 {{33,25}} wnTs[0]=0 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} wnTs[1]=1 | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} {{33,25}} wnTs[0]=0 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} {{33,25}} wnTs[0]=1 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} {{33,25}} wtTs[1]=1 {{38.6568527,27.3431454}} wnTs[0]=0 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} wnTs[1]=1 | 
 | debugShowQuadIntersection wtTs[0]=1 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} {{38.6568527,27.3431454}} wnTs[0]=0 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} {{41,33}} wnTs[0]=0 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} {{38.6568527,27.3431454}} wnTs[0]=1 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} {{38.6568527,27.3431454}} wtTs[1]=1 {{41,33}} wnTs[0]=0 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} wnTs[1]=1 | 
 | debugShowQuadIntersection wtTs[0]=0 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} {{41,33}} wtTs[1]=1 {{38.6568527,38.6568527}} wnTs[0]=0 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} wnTs[1]=1 | 
 | debugShowQuadIntersection wtTs[0]=1 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} {{38.6568527,38.6568527}} wnTs[0]=0 {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} {{41,33}} wnTs[0]=1 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}} {{38.6568527,38.6568527}} wnTs[0]=1 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}} {{38.6568527,38.6568527}} wnTs[0]=0 {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} | 
 | debugShowQuadIntersection wtTs[0]=0.0149880862 {{38.6447449,38.6689377}, {38.6394348,38.6742554}, {38.6341171,38.6795731}} {{38.6445847,38.6690979}} wnTs[0]=0.00261623 {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} | 
 | debugShowQuadIntersection no intersect {{38.6341171,38.6795731}, {38.6284409,38.6852493}, {38.6227531,38.6909218}} {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} | 
 | debugShowQuadIntersection no intersect {{38.6227531,38.6909218}, {36.2775421,41.0320053}, {32.9638329,41.0290833}} {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} | 
 | debugShowQuadIntersection no intersect {{38.6227531,38.6909218}, {36.2775421,41.0320053}, {32.9638329,41.0290833}} {{33,41}, {29.6862907,41}, {27.3431454,38.6568527}} | 
 | debugShowQuadIntersection no intersect {{32.9638329,41.0290833}, {29.6501274,41.0261612}, {27.3090477,38.6809464}} {{33,41}, {29.6862907,41}, {27.3431454,38.6568527}} | 
 | debugShowQuadIntersection no intersect {{27.3090477,38.6809464}, {24.9679718,36.3357391}, {24.9708939,33.0220299}} {{27.3431454,38.6568527}, {25,36.3137093}, {25,33}} | 
 | debugShowQuadIntersection no intersect {{24.9708939,33.0220299}, {24.973814,29.7083225}, {27.319025,27.3672428}} {{27.3431454,38.6568527}, {25,36.3137093}, {25,33}} | 
 | debugShowQuadIntersection no intersect {{24.9708939,33.0220299}, {24.973814,29.7083225}, {27.319025,27.3672428}} {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection no intersect {{27.319025,27.3672428}, {27.3209743,27.3652973}, {27.3229256,27.3633518}} {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection no intersect {{27.3229256,27.3633518}, {27.324995,27.3612823}, {27.3270645,27.3592148}} {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection no intersect {{27.3270645,27.3592148}, {27.3312511,27.355032}, {27.3354416,27.3508568}} {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{27.3354416,27.3508568}, {27.3332844,27.3530178}, {27.331131,27.3551788}} {{27.3354416,27.3508568}} wtTs[1]=1 {{27.331131,27.3551788}} wnTs[0]=0.998355 {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} wnTs[1]=0.99743327 | 
 | debugShowQuadIntersection wtTs[0]=0.0266527086 {{27.331131,27.3551788}, {27.3369579,27.3493824}, {27.3431988,27.3431988}} {{27.3314419,27.3548698}} wnTs[0]=0.997499 {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} | 
 | debugShowQuadLineIntersection wtTs[0]=1 {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} {{27.3431454,27.3431454}} wnTs[0]=1 {{27.3431988,27.3431988}, {27.3431454,27.3431454}} | 
 | debugShowQuadLineIntersection wtTs[0]=0 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} {{27.3431454,27.3431454}} wnTs[0]=1 {{27.3431988,27.3431988}, {27.3431454,27.3431454}} | 
 | debugShowQuadLineIntersection no intersect {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}} {{38.6398277,38.6738319}, {38.6447258,38.6689186}} | 
 | debugShowQuadLineIntersection wtTs[0]=1 {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}} {{38.6447449,38.6689377}} wnTs[0]=1 {{38.6447258,38.6689186}, {38.6447449,38.6689377}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6568527,38.6568527}, {38.6510239,38.6626816}, {38.6447449,38.6689377}} {{38.6447449,38.6689377}} wnTs[0]=0 {{38.6447449,38.6689377}, {38.6422882,38.6713867}, {38.6398277,38.6738319}} | 
 | debugShowQuadLineIntersection no intersect {{38.6447449,38.6689377}, {38.6394348,38.6742554}, {38.6341171,38.6795731}} {{38.6398277,38.6738319}, {38.6447258,38.6689186}} | 
 | debugShowQuadLineIntersection wtTs[0]=0 {{38.6447449,38.6689377}, {38.6394348,38.6742554}, {38.6341171,38.6795731}} {{38.6447449,38.6689377}} wnTs[0]=1 {{38.6447258,38.6689186}, {38.6447449,38.6689377}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{38.6447449,38.6689377}, {38.6394348,38.6742554}, {38.6341171,38.6795731}} {{38.6447449,38.6689377}} wnTs[0]=0 {{38.6447449,38.6689377}, {38.6422882,38.6713867}, {38.6398277,38.6738319}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} {{38.6568527,38.6568527}} wnTs[0]=0 {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} | 
 | debugShowQuadIntersection wtTs[0]=0 {{41,33}, {41,36.3137093}, {38.6568527,38.6568527}} {{41,33}} wnTs[0]=1 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} {{33,41}} wnTs[0]=0 {{33,41}, {29.6862907,41}, {27.3431454,38.6568527}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{33,41}, {29.6862907,41}, {27.3431454,38.6568527}} {{27.3431454,38.6568527}} wnTs[0]=0 {{27.3431454,38.6568527}, {25,36.3137093}, {25,33}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3431454,38.6568527}, {25,36.3137093}, {25,33}} {{25,33}} wnTs[0]=0 {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{25,33}, {25,29.6862907}, {27.3431454,27.3431454}} {{27.3431454,27.3431454}} wnTs[0]=0 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{27.3431454,27.3431454}, {29.6862907,25}, {33,25}} {{33,25}} wnTs[0]=0 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} | 
 | debugShowQuadIntersection wtTs[0]=1 {{33,25}, {36.3137093,25}, {38.6568527,27.3431454}} {{38.6568527,27.3431454}} wnTs[0]=0 {{38.6568527,27.3431454}, {41,29.6862907}, {41,33}} | 
 | debugShowQuadLineIntersection no intersect {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} {{38.6398277,38.6738319}, {38.6447258,38.6689186}} | 
 | debugShowQuadLineIntersection no intersect {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} {{38.6447258,38.6689186}, {38.6447449,38.6689377}} | 
 | debugShowQuadIntersection wtTs[0]=0.00258220891 {{38.6568527,38.6568527}, {36.3137093,41}, {33,41}} {{38.6447449,38.6689377}} wtTs[1]=0.00362998223 {{38.6398277,38.6738319}} wnTs[0]=0 {{38.6447449,38.6689377}, {38.6422882,38.6713867}, {38.6398277,38.6738319}} wnTs[1]=1 | 
 | debugShowLineIntersection wtTs[0]=1 {{38.6398277,38.6738319}, {38.6447258,38.6689186}} {{38.6447258,38.6689186}} wnTs[0]=0 {{38.6447258,38.6689186}, {38.6447449,38.6689377}} | 
 | debugShowQuadLineIntersection wtTs[0]=1 {{38.6447449,38.6689377}, {38.6422882,38.6713867}, {38.6398277,38.6738319}} {{38.6398277,38.6738319}} wnTs[0]=0 {{38.6398277,38.6738319}, {38.6447258,38.6689186}} | 
 | debugShowQuadLineIntersection wtTs[0]=0 {{38.6447449,38.6689377}, {38.6422882,38.6713867}, {38.6398277,38.6738319}} {{38.6447449,38.6689377}} wnTs[0]=1 {{38.6447258,38.6689186}, {38.6447449,38.6689377}} | 
 | SkOpSegment::debugShowTs - id=0 [o=24,16 t=0 27.3431454,27.3431454 w=1 o=0] [o=26,1 t=1 33,25 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=25 [o=24,16 t=0 27.3431454,27.3431454 w=1 o=0] [o=26,1 t=1 33,25 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs + id=0 [o=24,16 t=0 27.3431454,27.3431454 w=1 o=0] [o=26,1 t=1 33,25 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=25 [o=24,16 t=0 27.3431454,27.3431454 w=1 o=0] [o=26,1 t=1 33,25 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs - id=1 [o=25,0 t=0 33,25 w=1 o=0] [o=27,2 t=1 38.6568527,27.3431454 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=26 [o=25,0 t=0 33,25 w=1 o=0] [o=27,2 t=1 38.6568527,27.3431454 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs + id=1 [o=25,0 t=0 33,25 w=1 o=0] [o=27,2 t=1 38.6568527,27.3431454 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=26 [o=25,0 t=0 33,25 w=1 o=0] [o=27,2 t=1 38.6568527,27.3431454 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs - id=2 [o=26,1 t=0 38.6568527,27.3431454 w=1 o=0] [o=20,3 t=1 41,33 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=27 [o=26,1 t=0 38.6568527,27.3431454 w=1 o=0] [o=20,3 t=1 41,33 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs + id=2 [o=26,1 t=0 38.6568527,27.3431454 w=1 o=0] [o=20,3 t=1 41,33 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=27 [o=26,1 t=0 38.6568527,27.3431454 w=1 o=0] [o=20,3 t=1 41,33 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs - id=3 [o=27,2 t=0 41,33 w=1 o=0] [o=21,4 t=1 38.6568527,38.6568527 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=20 [o=27,2 t=0 41,33 w=1 o=0] [o=21,4 t=1 38.6568527,38.6568527 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs + id=3 [o=27,2 t=0 41,33 w=1 o=0] [o=21,4 t=1 38.6568527,38.6568527 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=20 [o=27,2 t=0 41,33 w=1 o=0] [o=21,4 t=1 38.6568527,38.6568527 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs - id=14 [o=13 t=0 27.3354416,27.3508568 w=1 o=0] [o=15 t=1 27.331131,27.3551788 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=24 [o=23 t=0 25,33 w=1 o=0] [o=15 t=0.997 27.3314419,27.3548698 w=1 o=0] [o=25,16,0 t=1 27.3431454,27.3431454 w=1 o=0] operand | 
 | SkOpSegment::addTPair addTPair this=14 0 other=24 0.998354892 | 
 | SkOpSegment::addTPair id=14 lower=0 upper=1 other=24 oLower=2 oUpper=2 | 
 | SkOpSegment::addTPair addTPair this=24 0.99743327 other=14 1 | 
 | SkOpSegment::addTPair id=24 lower=1 upper=1 other=14 oLower=2 oUpper=3 | 
 | SkOpSegment::debugShowTs + id=14 [o=24,13 t=0 27.3354416,27.3508568 w=1 o=0] [o=24,15 t=1 27.331131,27.3551788 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=24 [o=23 t=0 25,33 w=1 o=0] [o=14 t=0.997 27.331131,27.3551788 w=1 o=0] [o=15 t=0.997 27.3314419,27.3548698 w=1 o=0] [o=14 t=0.998 27.3354416,27.3508568 w=1 o=0] [o=25,16,0 t=1 27.3431454,27.3431454 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs - id=21 [o=20,4,3 t=0 38.6568527,38.6568527 w=1 o=0] [o=5 t=0.00262 38.6445847,38.6690979 w=1 o=0] [o=22 t=1 33,41 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs o id=19 [o=18,5,4 t=0 38.6447449,38.6689377 w=1 o=0] [o=17 t=1 38.6398277,38.6738319 w=1 o=0] | 
 | SkOpSegment::addTPair addTPair this=21 0.00258220891 other=19 0 | 
 | SkOpSegment::addTPair id=21 lower=3 upper=3 other=19 oLower=0 oUpper=3 | 
 | SkOpSegment::addTPair addTPair this=19 1 other=21 0.00362998223 | 
 | SkOpSegment::addTPair id=19 lower=4 upper=5 other=21 oLower=5 oUpper=5 | 
 | SkOpSegment::debugShowTs + id=21 [o=20,4,3 t=0 38.6568527,38.6568527 w=1 o=0] [o=19 t=0.00258 38.6447449,38.6689377 w=1 o=0] [o=5 t=0.00262 38.6445847,38.6690979 w=1 o=0] [o=19 t=0.00363 38.6398277,38.6738319 w=1 o=0] [o=22 t=1 33,41 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs o id=19 [o=21,18,5,4 t=0 38.6447449,38.6689377 w=1 o=0] [o=21,17 t=1 38.6398277,38.6738319 w=1 o=0] | 
 | SkOpContour::calcCoincidentWinding count=5 | 
 | SkOpSegment::debugShowTs p id=0 [o=24,16 t=0 27.3431454,27.3431454 w=1 o=1] [o=26,1 t=1 33,25 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=25 [o=24,16 t=0 27.3431454,27.3431454 w=0 o=0] [o=26,1 t=1 33,25 w=1 o=0] operand done | 
 | SkOpSegment::debugShowTs p id=1 [o=25,0 t=0 33,25 w=1 o=1] [o=27,2 t=1 38.6568527,27.3431454 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=26 [o=25,0 t=0 33,25 w=0 o=0] [o=27,2 t=1 38.6568527,27.3431454 w=1 o=0] operand done | 
 | SkOpSegment::debugShowTs p id=2 [o=26,1 t=0 38.6568527,27.3431454 w=1 o=1] [o=20,3 t=1 41,33 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=27 [o=26,1 t=0 38.6568527,27.3431454 w=0 o=0] [o=20,3 t=1 41,33 w=1 o=0] operand done | 
 | SkOpSegment::debugShowTs p id=3 [o=27,2 t=0 41,33 w=1 o=1] [o=21,4 t=1 38.6568527,38.6568527 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=20 [o=27,2 t=0 41,33 w=0 o=0] [o=21,4 t=1 38.6568527,38.6568527 w=1 o=0] operand done | 
 | SkOpSegment::debugShowTs p id=14 [o=24,13 t=0 27.3354416,27.3508568 w=1 o=-1] [o=24,15 t=1 27.331131,27.3551788 w=1 o=0] | 
 | SkOpSegment::debugShowTs o id=24 [o=23 t=0 25,33 w=0 o=0] [o=14 t=0.997 27.331131,27.3551788 w=0 o=0] [o=15 t=0.997 27.3314419,27.3548698 w=0 o=0] [o=14 t=0.998 27.3354416,27.3508568 w=1 o=0] [o=25,16,0 t=1 27.3431454,27.3431454 w=1 o=0] operand | 
 | SkOpContour::calcCoincidentWinding count=1 | 
 | SkOpSegment::debugShowTs p id=21 [o=20,4,3 t=0 38.6568527,38.6568527 w=1 o=0] [o=19 t=0.00258 38.6447449,38.6689377 w=1 o=1] [o=5 t=0.00262 38.6445847,38.6690979 w=1 o=1] [o=19 t=0.00363 38.6398277,38.6738319 w=1 o=0] [o=22 t=1 33,41 w=1 o=0] operand | 
 | SkOpSegment::debugShowTs o id=19 [o=21,18,5,4 t=0 38.6447449,38.6689377 w=0 o=0] [o=21,17 t=1 38.6398277,38.6738319 w=1 o=0] done | 
 | SkOpSegment::checkEnds id=4 missing t=1 other=21 otherT=0.00258220891 pt=(38.6447449,38.6689377) | 
 | SkOpSegment::addTPair addTPair this=4 1 other=21 0.00258220891 | 
 | SkOpSegment::addTPair id=4 lower=3 upper=6 other=21 oLower=3 oUpper=4 | 
 | SkOpSegment::checkEnds id=5 missing t=0 other=21 otherT=0.00258220891 pt=(38.6447449,38.6689377) | 
 | SkOpSegment::addTPair addTPair this=5 0 other=21 0.00258220891 | 
 | SkOpSegment::addTPair id=5 lower=0 upper=3 other=21 oLower=3 oUpper=5 | 
 | SkOpSegment::checkEnds id=13 missing t=1 other=24 otherT=0.998354892 pt=(27.3354416,27.3508568) | 
 | SkOpSegment::addTPair addTPair this=13 1 other=24 0.998354892 | 
 | SkOpSegment::addTPair id=13 lower=1 upper=2 other=24 oLower=3 oUpper=4 | 
 | SkOpSegment::checkEnds id=15 missing t=0 other=24 otherT=0.99743327 pt=(27.331131,27.3551788) | 
 | SkOpSegment::addTPair addTPair this=15 0 other=24 0.99743327 | 
 | SkOpSegment::addTPair id=15 lower=0 upper=1 other=24 oLower=1 oUpper=2 | 
 | SkOpSegment::checkEnds id=21 missing t=0.00362998223 other=17 otherT=0 pt=(38.6398277,38.6738319) | 
 | SkOpSegment::addTPair addTPair this=21 0.00362998223 other=17 0 | 
 | SkOpSegment::addTPair id=21 lower=7 upper=8 other=17 oLower=0 oUpper=1 | 
 | SkOpSegment::addTPair addTPair this=0 0 other=25 0 | 
 | SkOpSegment::addTPair id=0 lower=0 upper=2 other=25 oLower=0 oUpper=2 | 
 | SkOpSegment::addTPair addTPair duplicate this=0 0 other=25 0 | 
 | SkOpSegment::addTPair addTPair this=3 1 other=20 1 | 
 | SkOpSegment::addTPair id=3 lower=2 upper=4 other=20 oLower=2 oUpper=4 | 
 | SkOpSegment::addTPair addTPair duplicate this=3 1 other=20 1 | 
 | SkOpSegment::addTPair addTPair this=21 0.00258220891 other=18 1 | 
 | SkOpSegment::addTPair id=21 lower=3 upper=6 other=18 oLower=1 oUpper=4 | 
 | SkOpSegment::addTPair addTPair duplicate this=18 1 other=21 0.00258220891 | 
 | SkOpContour::joinCoincidence count=5 | 
 | SkOpContour::joinCoincidence count=1 | 
 | SkOpSegment::sortAngles [0] tStart=0 [1] | 
 | SkOpAngle::after [0/1] 2/1 tStart=0 tEnd=1 < [16/1] 27/27 tStart=1 tEnd=0 < [24/2] 17/21 tStart=1 tEnd=0.998354892  F 4 | 
 | SkOpSegment::sortAngles [0] tStart=1 [4] | 
 | SkOpSegment::sortAngles [1] tStart=1 [3] | 
 | SkOpSegment::sortAngles [2] tStart=1 [3] | 
 | SkOpSegment::sortAngles [3] tStart=1 [3] | 
 | SkOpAngle::after [3/2] 1/5 tStart=1 tEnd=0 < [4/1] 18/17 tStart=0 tEnd=1 < [21/1] 21/17 tStart=0 tEnd=0.00258220891  T 11 | 
 | SkOpSegment::sortAngles [4] tStart=1 [3] | 
 | SkOpAngle::after [4/2] 1/1 tStart=1 tEnd=0 < [21/3] 21/21 tStart=0.00258220891 tEnd=0.0026162254 < [21/2] 1/1 tStart=0.00258220891 tEnd=0  T 5 | 
 | SkOpAngle::after [4/2] 1/1 tStart=1 tEnd=0 < [18/1] 11/11 tStart=1 tEnd=0 < [21/3] 21/21 tStart=0.00258220891 tEnd=0.0026162254  T 4 | 
 | SkOpAngle::after [4/2] 1/1 tStart=1 tEnd=0 < [5/1] 21/21 tStart=0 tEnd=0.0149880862 < [18/1] 11/11 tStart=1 tEnd=0  F 4 | 
 | SkOpAngle::after [18/1] 11/11 tStart=1 tEnd=0 < [5/1] 21/21 tStart=0 tEnd=0.0149880862 < [21/3] 21/21 tStart=0.00258220891 tEnd=0.0026162254  T 7 | 
 | SkOpSegment::sortAngles [5] tStart=0.0149880862 [4] | 
 | SkOpAngle::after [5/2] 1/1 tStart=0.0149880862 tEnd=0 < [21/4] 1/1 tStart=0.0026162254 tEnd=0.00258220891 < [5/3] 21/21 tStart=0.0149880862 tEnd=1  T 12 | 
 | SkOpAngle::after [5/2] 1/1 tStart=0.0149880862 tEnd=0 < [21/5] 17/17 tStart=0.0026162254 tEnd=0.00362998223 < [21/4] 1/1 tStart=0.0026162254 tEnd=0.00258220891  F 5 | 
 | SkOpAngle::after [21/4] 1/1 tStart=0.0026162254 tEnd=0.00258220891 < [21/5] 17/17 tStart=0.0026162254 tEnd=0.00362998223 < [5/3] 21/21 tStart=0.0149880862 tEnd=1  T 4 | 
 | SkOpSegment::sortAngles [13] tStart=1 [1] | 
 | SkOpAngle::after [13/1] 17/17 tStart=1 tEnd=0 < [14/1] 21/21 tStart=0 tEnd=1 < [24/1] 5/5 tStart=0.998354892 tEnd=1  T 4 | 
 | SkOpSegment::sortAngles [14] tStart=1 [3] | 
 | SkOpSegment::sortAngles [15] tStart=0.0266527086 [2] | 
 | SkOpSegment::sortAngles [21] tStart=0.00362998223 [8] | 
 | SkOpAngle::after [21/6] 1/1 tStart=0.00362998223 tEnd=0.0026162254 < [17/1] 5/5 tStart=0 tEnd=1 < [21/7] 17/17 tStart=0.00362998223 tEnd=1  T 4 | 
 | SkOpSegment::debugShowActiveSpans id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 (27.3431454,27.3431454) tEnd=1 other=25 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=1 (33,25 36.3137093,25 38.6568527,27.3431454) t=0 (33,25) tEnd=1 other=25 otherT=1 otherIndex=4 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=2 (38.6568527,27.3431454 41,29.6862907 41,33) t=0 (38.6568527,27.3431454) tEnd=1 other=26 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=3 (41,33 41,36.3137093 38.6568527,38.6568527) t=0 (41,33) tEnd=1 other=27 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=4 (38.6568527,38.6568527 38.6510239,38.6626816 38.6447449,38.6689377) t=0 (38.6568527,38.6568527) tEnd=1 other=21 otherT=0 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0 (38.6447449,38.6689377) tEnd=0.0149880862 other=21 otherT=0.00258220891 otherIndex=4 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0.0149880862 (38.6445847,38.6690979) tEnd=1 other=21 otherT=0.0026162254 otherIndex=7 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=6 (38.6341171,38.6795731 38.6284409,38.6852493 38.6227531,38.6909218) t=0 (38.6341171,38.6795731) tEnd=1 other=5 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=7 (38.6227531,38.6909218 36.2775421,41.0320053 32.9638329,41.0290833) t=0 (38.6227531,38.6909218) tEnd=1 other=6 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=8 (32.9638329,41.0290833 29.6501274,41.0261612 27.3090477,38.6809464) t=0 (32.9638329,41.0290833) tEnd=1 other=7 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=9 (27.3090477,38.6809464 24.9679718,36.3357391 24.9708939,33.0220299) t=0 (27.3090477,38.6809464) tEnd=1 other=8 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=10 (24.9708939,33.0220299 24.973814,29.7083225 27.319025,27.3672428) t=0 (24.9708939,33.0220299) tEnd=1 other=9 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=11 (27.319025,27.3672428 27.3209743,27.3652973 27.3229256,27.3633518) t=0 (27.319025,27.3672428) tEnd=1 other=10 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=12 (27.3229256,27.3633518 27.324995,27.3612823 27.3270645,27.3592148) t=0 (27.3229256,27.3633518) tEnd=1 other=11 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=13 (27.3270645,27.3592148 27.3312511,27.355032 27.3354416,27.3508568) t=0 (27.3270645,27.3592148) tEnd=1 other=12 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=14 (27.3354416,27.3508568 27.3332844,27.3530178 27.331131,27.3551788) t=0 (27.3354416,27.3508568) tEnd=1 other=24 otherT=0.998354892 otherIndex=5 windSum=? windValue=1 oppValue=-1 | 
 | SkOpSegment::debugShowActiveSpans id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0 (27.331131,27.3551788) tEnd=0.0266527086 other=24 otherT=0.99743327 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0.0266527086 (27.3314419,27.3548698) tEnd=1 other=24 otherT=0.997499486 otherIndex=3 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=16 (27.3431988,27.3431988 27.3431454,27.3431454) t=0 (27.3431988,27.3431988) tEnd=1 other=15 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0 (38.6568527,38.6568527) tEnd=0.00258220891 other=20 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00258220891 (38.6447449,38.6689377) tEnd=0.0026162254 other=18 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.0026162254 (38.6445847,38.6690979) tEnd=0.00362998223 other=5 otherT=0.0149880862 otherIndex=4 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00362998223 (38.6398277,38.6738319) tEnd=1 other=17 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=22 (33,41 29.6862907,41 27.3431454,38.6568527) t=0 (33,41) tEnd=1 other=21 otherT=1 otherIndex=10 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=23 (27.3431454,38.6568527 25,36.3137093 25,33) t=0 (27.3431454,38.6568527) tEnd=1 other=22 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=24 (25,33 25,29.6862907 27.3431454,27.3431454) t=0.998354892 (27.3354416,27.3508568) tEnd=1 other=13 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=17 (38.6398277,38.6738319 38.6447258,38.6689186) t=0 (38.6398277,38.6738319) tEnd=1 other=21 otherT=0.00362998223 otherIndex=8 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::findTop | 
 | SkOpAngle::dumpOne [0/2] next=1/1 sect=16/17  s=1 [4] e=0 [2] sgn=1 windVal=1 windSum=? oppVal=1 oppSum=? | 
 | SkOpAngle::dumpOne [1/1] next=0/2 sect=30/29  s=0 [0] e=1 [2] sgn=-1 windVal=1 windSum=? oppVal=1 oppSum=? stop | 
 | SkOpSegment::markWinding id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [1] (27.3431454,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [0] (27.3431454,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [2] (27.3431454,27.3431454) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::markWinding id=1 (33,25 36.3137093,25 38.6568527,27.3431454) t=0 [0] (33,25) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=1 (33,25 36.3137093,25 38.6568527,27.3431454) t=0 [1] (33,25) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::markWinding id=2 (38.6568527,27.3431454 41,29.6862907 41,33) t=0 [0] (38.6568527,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=2 (38.6568527,27.3431454 41,29.6862907 41,33) t=0 [1] (38.6568527,27.3431454) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::markWinding id=3 (41,33 41,36.3137093 38.6568527,38.6568527) t=0 [0] (41,33) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=3 (41,33 41,36.3137093 38.6568527,38.6568527) t=0 [1] (41,33) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [1] (27.3431454,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [0] (27.3431454,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::markWinding id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [2] (27.3431454,27.3431454) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::activeOp id=0 t=0 tEnd=1 op=union miFrom=1 miTo=0 suFrom=1 suTo=0 result=1 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [1] (27.3431454,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [0] (27.3431454,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=0 (27.3431454,27.3431454 29.6862907,25 33,25) t=0 [2] (27.3431454,27.3431454) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | bridgeOp current id=0 from=(27.3431454,27.3431454) to=(33,25) | 
 | path.moveTo(27.3431454,27.3431454); | 
 | path.quadTo(29.6862907,25, 33,25); | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=1 (33,25 36.3137093,25 38.6568527,27.3431454) t=0 [0] (33,25) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=1 (33,25 36.3137093,25 38.6568527,27.3431454) t=0 [1] (33,25) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | bridgeOp current id=1 from=(33,25) to=(38.6568527,27.3431454) | 
 | path.quadTo(36.3137093,25, 38.6568527,27.3431454); | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=2 (38.6568527,27.3431454 41,29.6862907 41,33) t=0 [0] (38.6568527,27.3431454) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=2 (38.6568527,27.3431454 41,29.6862907 41,33) t=0 [1] (38.6568527,27.3431454) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | bridgeOp current id=2 from=(38.6568527,27.3431454) to=(41,33) | 
 | path.quadTo(41,29.6862907, 41,33); | 
 | SkOpSegment::markWinding id=4 (38.6568527,38.6568527 38.6510239,38.6626816 38.6447449,38.6689377) t=0 [0] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=4 (38.6568527,38.6568527 38.6510239,38.6626816 38.6447449,38.6689377) t=0 [1] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=4 (38.6568527,38.6568527 38.6510239,38.6626816 38.6447449,38.6689377) t=0 [2] (38.6568527,38.6568527) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markAngle last id=4 windSum=? small=0 | 
 | SkOpSegment::markWinding id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0 [0] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0 [1] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0 [2] (38.6568527,38.6568527) tEnd=0.00258220891 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markAngle last id=21 windSum=? small=0 | 
 | SkOpSegment::findNextOp | 
 | SkOpAngle::dumpOne [3/2] next=4/1 sect=1/5  s=1 [4] e=0 [1] sgn=1 windVal=1 windSum=-1 oppVal=1 oppSum=-1 | 
 | SkOpAngle::dumpOne [4/1] next=21/1 sect=18/17  s=0 [0] e=1 [3] sgn=-1 windVal=1 windSum=-1 oppVal=0 oppSum=-1 | 
 | SkOpAngle::dumpOne [21/1] next=3/2 sect=21/17  s=0 [0] e=0.00258220891 [3] sgn=-1 windVal=1 windSum=-1 oppVal=0 oppSum=0 operand | 
 | SkOpSegment::activeOp id=4 t=0 tEnd=1 op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0 | 
 | SkOpSegment::markDoneBinary id=4 (38.6568527,38.6568527 38.6510239,38.6626816 38.6447449,38.6689377) t=0 [0] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=4 (38.6568527,38.6568527 38.6510239,38.6626816 38.6447449,38.6689377) t=0 [1] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=4 (38.6568527,38.6568527 38.6510239,38.6626816 38.6447449,38.6689377) t=0 [2] (38.6568527,38.6568527) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::findNextOp chase.append id=4 windSum=-2147483647 small=0 | 
 | SkOpSegment::activeOp id=21 t=0 tEnd=0.00258220891 op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1 | 
 | SkOpSegment::findNextOp chase.append id=21 windSum=-2147483647 small=0 | 
 | SkOpSegment::markDoneBinary id=3 (41,33 41,36.3137093 38.6568527,38.6568527) t=0 [0] (41,33) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=3 (41,33 41,36.3137093 38.6568527,38.6568527) t=0 [1] (41,33) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=1 | 
 | SkOpSegment::findNextOp from:[3] to:[21] start=0 end=3 | 
 | bridgeOp current id=3 from=(41,33) to=(38.6568527,38.6568527) | 
 | path.quadTo(41,36.3137093, 38.6568527,38.6568527); | 
 | SkOpSegment::findNextOp | 
 | SkOpAngle::dumpOne [21/2] next=4/2 sect=1/1  s=0.00258220891 [3] e=0 [0] sgn=1 windVal=1 windSum=-1 oppVal=0 oppSum=0 operand | 
 | SkOpAngle::dumpOne [4/2] next=18/1 sect=1/1  s=1 [6] e=0 [2] sgn=1 windVal=1 windSum=-1 oppVal=0 oppSum=-1 done | 
 | SkOpAngle::dumpOne [18/1] next=5/1 sect=11/11  s=1 [4] e=0 [0] sgn=1 windVal=1 windSum=? done | 
 | SkOpAngle::dumpOne [5/1] next=21/3 sect=21/21  s=0 [0] e=0.0149880862 [4] sgn=-1 windVal=1 windSum=? unorderable | 
 | SkOpAngle::dumpOne [21/3] next=21/2 sect=21/21  s=0.00258220891 [3] e=0.0026162254 [7] sgn=-1 windVal=1 windSum=? oppVal=1 oppSum=? unorderable operand | 
 | SkOpSegment::activeOp id=4 t=1 tEnd=0 op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0 | 
 | SkOpSegment::activeOp id=18 t=1 tEnd=0 op=union miFrom=1 miTo=0 suFrom=1 suTo=1 result=0 | 
 | SkOpSegment::activeOp id=5 t=0 tEnd=0.0149880862 op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0 | 
 | SkOpSegment::markDoneBinary id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0 [0] (38.6447449,38.6689377) tEnd=0 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0 [1] (38.6447449,38.6689377) tEnd=0 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0 [2] (38.6447449,38.6689377) tEnd=0 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0 [3] (38.6447449,38.6689377) tEnd=0.0149880862 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::activeOp id=21 t=0.00258220891 tEnd=0.0026162254 op=union miFrom=1 miTo=0 suFrom=1 suTo=0 result=1 | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0 [0] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0 [1] (38.6568527,38.6568527) tEnd=0 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0 [2] (38.6568527,38.6568527) tEnd=0.00258220891 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::findNextOp from:[21] to:[21] start=3 end=7 | 
 | bridgeOp current id=21 from=(38.6568527,38.6568527) to=(38.6447449,38.6689377) | 
 | path.quadTo(38.6510239,38.6626816, 38.6447449,38.6689377); | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00258220891 [3] (38.6447449,38.6689377) tEnd=0.00258220891 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00258220891 [4] (38.6447449,38.6689377) tEnd=0.00258220891 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00258220891 [5] (38.6447449,38.6689377) tEnd=0.00258220891 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00258220891 [6] (38.6447449,38.6689377) tEnd=0.0026162254 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0.0149880862 (38.6445847,38.6690979) tEnd=1 other=21 otherT=0.0026162254 otherIndex=7 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=6 (38.6341171,38.6795731 38.6284409,38.6852493 38.6227531,38.6909218) t=0 (38.6341171,38.6795731) tEnd=1 other=5 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=7 (38.6227531,38.6909218 36.2775421,41.0320053 32.9638329,41.0290833) t=0 (38.6227531,38.6909218) tEnd=1 other=6 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=8 (32.9638329,41.0290833 29.6501274,41.0261612 27.3090477,38.6809464) t=0 (32.9638329,41.0290833) tEnd=1 other=7 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=9 (27.3090477,38.6809464 24.9679718,36.3357391 24.9708939,33.0220299) t=0 (27.3090477,38.6809464) tEnd=1 other=8 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=10 (24.9708939,33.0220299 24.973814,29.7083225 27.319025,27.3672428) t=0 (24.9708939,33.0220299) tEnd=1 other=9 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=11 (27.319025,27.3672428 27.3209743,27.3652973 27.3229256,27.3633518) t=0 (27.319025,27.3672428) tEnd=1 other=10 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=12 (27.3229256,27.3633518 27.324995,27.3612823 27.3270645,27.3592148) t=0 (27.3229256,27.3633518) tEnd=1 other=11 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=13 (27.3270645,27.3592148 27.3312511,27.355032 27.3354416,27.3508568) t=0 (27.3270645,27.3592148) tEnd=1 other=12 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=14 (27.3354416,27.3508568 27.3332844,27.3530178 27.331131,27.3551788) t=0 (27.3354416,27.3508568) tEnd=1 other=24 otherT=0.998354892 otherIndex=5 windSum=? windValue=1 oppValue=-1 | 
 | SkOpSegment::debugShowActiveSpans id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0 (27.331131,27.3551788) tEnd=0.0266527086 other=24 otherT=0.99743327 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0.0266527086 (27.3314419,27.3548698) tEnd=1 other=24 otherT=0.997499486 otherIndex=3 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=16 (27.3431988,27.3431988 27.3431454,27.3431454) t=0 (27.3431988,27.3431988) tEnd=1 other=15 otherT=1 otherIndex=3 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.0026162254 (38.6445847,38.6690979) tEnd=0.00362998223 other=5 otherT=0.0149880862 otherIndex=4 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00362998223 (38.6398277,38.6738319) tEnd=1 other=17 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=22 (33,41 29.6862907,41 27.3431454,38.6568527) t=0 (33,41) tEnd=1 other=21 otherT=1 otherIndex=10 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=23 (27.3431454,38.6568527 25,36.3137093 25,33) t=0 (27.3431454,38.6568527) tEnd=1 other=22 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=24 (25,33 25,29.6862907 27.3431454,27.3431454) t=0.998354892 (27.3354416,27.3508568) tEnd=1 other=13 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=17 (38.6398277,38.6738319 38.6447258,38.6689186) t=0 (38.6398277,38.6738319) tEnd=1 other=21 otherT=0.00362998223 otherIndex=8 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::findTop | 
 | SkOpAngle::dumpOne [0/1] next=24/2 sect=2/1  s=0 [0] e=1 [3] sgn=-1 windVal=1 windSum=-1 oppVal=1 oppSum=-1 done | 
 | SkOpAngle::dumpOne [24/2] next=16/1 sect=17/21  s=1 [8] e=0.998354892 [5] sgn=1 windVal=1 windSum=? operand stop | 
 | SkOpAngle::dumpOne [16/1] next=0/1 sect=27/27  s=1 [3] e=0 [0] sgn=1 windVal=1 windSum=? stop | 
 | SkOpSegment::markWinding id=16 (27.3431988,27.3431988 27.3431454,27.3431454) t=0 [0] (27.3431988,27.3431988) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0.0266527086 [2] (27.3314419,27.3548698) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::markWinding id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0 [0] (27.331131,27.3551788) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0 [1] (27.331131,27.3551788) tEnd=0.0266527086 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::markAngle last id=15 windSum=-1 small=0 | 
 | SkOpSegment::markWinding id=24 (25,33 25,29.6862907 27.3431454,27.3431454) t=0.998354892 [4] (27.3354416,27.3508568) tEnd=0.998354892 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=24 (25,33 25,29.6862907 27.3431454,27.3431454) t=0.998354892 [5] (27.3354416,27.3508568) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markAngle last id=24 windSum=-1 small=0 | 
 | SkOpSegment::activeOp id=24 t=0.998354892 tEnd=1 op=union miFrom=0 miTo=0 suFrom=1 suTo=0 result=1 | 
 | SkOpSegment::findNextOp | 
 | SkOpAngle::dumpOne [24/2] next=16/1 sect=17/21  s=1 [8] e=0.998354892 [5] sgn=1 windVal=1 windSum=-1 oppVal=0 oppSum=0 operand stop | 
 | SkOpAngle::dumpOne [16/1] next=0/1 sect=27/27  s=1 [3] e=0 [0] sgn=1 windVal=1 windSum=-1 oppVal=0 oppSum=-1 stop | 
 | SkOpAngle::dumpOne [0/1] next=24/2 sect=2/1  s=0 [0] e=1 [3] sgn=-1 windVal=1 windSum=-1 oppVal=1 oppSum=-1 done | 
 | SkOpSegment::activeOp id=16 t=1 tEnd=0 op=union miFrom=0 miTo=1 suFrom=1 suTo=1 result=0 | 
 | SkOpSegment::markDoneBinary id=16 (27.3431988,27.3431988 27.3431454,27.3431454) t=0 [0] (27.3431988,27.3431988) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0.0266527086 [2] (27.3314419,27.3548698) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::markDoneBinary id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0 [0] (27.331131,27.3551788) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=15 (27.331131,27.3551788 27.3369579,27.3493824 27.3431988,27.3431988) t=0 [1] (27.331131,27.3551788) tEnd=0.0266527086 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::nextChase mismatched signs | 
 | SkOpSegment::findNextOp chase.append id=15 windSum=-1 small=0 | 
 | SkOpSegment::activeOp id=0 t=0 tEnd=1 op=union miFrom=1 miTo=0 suFrom=1 suTo=0 result=1 | 
 | SkOpSegment::markDoneBinary id=24 (25,33 25,29.6862907 27.3431454,27.3431454) t=0.998354892 [4] (27.3354416,27.3508568) tEnd=0.998354892 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::markDoneBinary id=24 (25,33 25,29.6862907 27.3431454,27.3431454) t=0.998354892 [5] (27.3354416,27.3508568) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::findNextOp from:[24] to:[0] start=0 end=3 | 
 | bridgeOp current id=24 from=(27.3354416,27.3508568) to=(27.3431454,27.3431454) | 
 | path.moveTo(27.3354416,27.3508568); | 
 | path.quadTo(27.3392906,27.3470001, 27.3431454,27.3431454); | 
 | SkOpSegment::markWinding id=14 (27.3354416,27.3508568 27.3332844,27.3530178 27.331131,27.3551788) t=0 [0] (27.3354416,27.3508568) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=-1 | 
 | SkOpSegment::markWinding id=14 (27.3354416,27.3508568 27.3332844,27.3530178 27.331131,27.3551788) t=0 [1] (27.3354416,27.3508568) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=? windSum=? windValue=1 oppValue=-1 | 
 | SkOpSegment::markAngle last id=14 windSum=-1 small=0 | 
 | SkOpSegment::debugShowActiveSpans id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0.0149880862 (38.6445847,38.6690979) tEnd=1 other=21 otherT=0.0026162254 otherIndex=7 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=6 (38.6341171,38.6795731 38.6284409,38.6852493 38.6227531,38.6909218) t=0 (38.6341171,38.6795731) tEnd=1 other=5 otherT=1 otherIndex=5 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=7 (38.6227531,38.6909218 36.2775421,41.0320053 32.9638329,41.0290833) t=0 (38.6227531,38.6909218) tEnd=1 other=6 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=8 (32.9638329,41.0290833 29.6501274,41.0261612 27.3090477,38.6809464) t=0 (32.9638329,41.0290833) tEnd=1 other=7 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=9 (27.3090477,38.6809464 24.9679718,36.3357391 24.9708939,33.0220299) t=0 (27.3090477,38.6809464) tEnd=1 other=8 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=10 (24.9708939,33.0220299 24.973814,29.7083225 27.319025,27.3672428) t=0 (24.9708939,33.0220299) tEnd=1 other=9 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=11 (27.319025,27.3672428 27.3209743,27.3652973 27.3229256,27.3633518) t=0 (27.319025,27.3672428) tEnd=1 other=10 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=12 (27.3229256,27.3633518 27.324995,27.3612823 27.3270645,27.3592148) t=0 (27.3229256,27.3633518) tEnd=1 other=11 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=13 (27.3270645,27.3592148 27.3312511,27.355032 27.3354416,27.3508568) t=0 (27.3270645,27.3592148) tEnd=1 other=12 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=14 (27.3354416,27.3508568 27.3332844,27.3530178 27.331131,27.3551788) t=0 (27.3354416,27.3508568) tEnd=1 other=24 otherT=0.998354892 otherIndex=5 windSum=-1 windValue=1 oppValue=-1 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.0026162254 (38.6445847,38.6690979) tEnd=0.00362998223 other=5 otherT=0.0149880862 otherIndex=4 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00362998223 (38.6398277,38.6738319) tEnd=1 other=17 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=22 (33,41 29.6862907,41 27.3431454,38.6568527) t=0 (33,41) tEnd=1 other=21 otherT=1 otherIndex=10 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=23 (27.3431454,38.6568527 25,36.3137093 25,33) t=0 (27.3431454,38.6568527) tEnd=1 other=22 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=17 (38.6398277,38.6738319 38.6447258,38.6689186) t=0 (38.6398277,38.6738319) tEnd=1 other=21 otherT=0.00362998223 otherIndex=8 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::activeOp id=14 t=1 tEnd=0 op=union miFrom=0 miTo=1 suFrom=1 suTo=0 result=0 | 
 | SkOpSegment::markDoneBinary id=14 (27.3354416,27.3508568 27.3332844,27.3530178 27.331131,27.3551788) t=0 [0] (27.3354416,27.3508568) tEnd=0 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=-1 | 
 | SkOpSegment::markDoneBinary id=14 (27.3354416,27.3508568 27.3332844,27.3530178 27.331131,27.3551788) t=0 [1] (27.3354416,27.3508568) tEnd=1 newWindSum=-1 newOppSum=-1 oppSum=-1 windSum=-1 windValue=1 oppValue=-1 | 
 | bridgeOp chase.append id=14 windSum=-1 small=0 | 
 | SkOpSegment::markWinding id=13 (27.3270645,27.3592148 27.3312511,27.355032 27.3354416,27.3508568) t=0 [0] (27.3270645,27.3592148) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=12 (27.3229256,27.3633518 27.324995,27.3612823 27.3270645,27.3592148) t=0 [0] (27.3229256,27.3633518) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=11 (27.319025,27.3672428 27.3209743,27.3652973 27.3229256,27.3633518) t=0 [0] (27.319025,27.3672428) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=10 (24.9708939,33.0220299 24.973814,29.7083225 27.319025,27.3672428) t=0 [0] (24.9708939,33.0220299) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=9 (27.3090477,38.6809464 24.9679718,36.3357391 24.9708939,33.0220299) t=0 [0] (27.3090477,38.6809464) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=8 (32.9638329,41.0290833 29.6501274,41.0261612 27.3090477,38.6809464) t=0 [0] (32.9638329,41.0290833) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=7 (38.6227531,38.6909218 36.2775421,41.0320053 32.9638329,41.0290833) t=0 [0] (38.6227531,38.6909218) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=6 (38.6341171,38.6795731 38.6284409,38.6852493 38.6227531,38.6909218) t=0 [0] (38.6341171,38.6795731) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markWinding id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0.0149880862 [4] (38.6445847,38.6690979) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=? windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::markAngle last id=5 windSum=-1 small=0 | 
 | SkOpSegment::debugShowActiveSpans id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0.0149880862 (38.6445847,38.6690979) tEnd=1 other=21 otherT=0.0026162254 otherIndex=7 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=6 (38.6341171,38.6795731 38.6284409,38.6852493 38.6227531,38.6909218) t=0 (38.6341171,38.6795731) tEnd=1 other=5 otherT=1 otherIndex=5 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=7 (38.6227531,38.6909218 36.2775421,41.0320053 32.9638329,41.0290833) t=0 (38.6227531,38.6909218) tEnd=1 other=6 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=8 (32.9638329,41.0290833 29.6501274,41.0261612 27.3090477,38.6809464) t=0 (32.9638329,41.0290833) tEnd=1 other=7 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=9 (27.3090477,38.6809464 24.9679718,36.3357391 24.9708939,33.0220299) t=0 (27.3090477,38.6809464) tEnd=1 other=8 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=10 (24.9708939,33.0220299 24.973814,29.7083225 27.319025,27.3672428) t=0 (24.9708939,33.0220299) tEnd=1 other=9 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=11 (27.319025,27.3672428 27.3209743,27.3652973 27.3229256,27.3633518) t=0 (27.319025,27.3672428) tEnd=1 other=10 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=12 (27.3229256,27.3633518 27.324995,27.3612823 27.3270645,27.3592148) t=0 (27.3229256,27.3633518) tEnd=1 other=11 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=13 (27.3270645,27.3592148 27.3312511,27.355032 27.3354416,27.3508568) t=0 (27.3270645,27.3592148) tEnd=1 other=12 otherT=1 otherIndex=1 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.0026162254 (38.6445847,38.6690979) tEnd=0.00362998223 other=5 otherT=0.0149880862 otherIndex=4 windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00362998223 (38.6398277,38.6738319) tEnd=1 other=17 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=22 (33,41 29.6862907,41 27.3431454,38.6568527) t=0 (33,41) tEnd=1 other=21 otherT=1 otherIndex=10 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=23 (27.3431454,38.6568527 25,36.3137093 25,33) t=0 (27.3431454,38.6568527) tEnd=1 other=22 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=17 (38.6398277,38.6738319 38.6447258,38.6689186) t=0 (38.6398277,38.6738319) tEnd=1 other=21 otherT=0.00362998223 otherIndex=8 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::activeOp id=13 t=1 tEnd=0 op=union miFrom=0 miTo=1 suFrom=0 suTo=0 result=1 | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=13 (27.3270645,27.3592148 27.3312511,27.355032 27.3354416,27.3508568) t=0 [0] (27.3270645,27.3592148) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=13 from=(27.3354416,27.3508568) to=(27.3270645,27.3592148) | 
 | path.moveTo(27.3354416,27.3508568); | 
 | path.quadTo(27.3312511,27.355032, 27.3270645,27.3592148); | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=12 (27.3229256,27.3633518 27.324995,27.3612823 27.3270645,27.3592148) t=0 [0] (27.3229256,27.3633518) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=12 from=(27.3270645,27.3592148) to=(27.3229256,27.3633518) | 
 | path.quadTo(27.324995,27.3612823, 27.3229256,27.3633518); | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=11 (27.319025,27.3672428 27.3209743,27.3652973 27.3229256,27.3633518) t=0 [0] (27.319025,27.3672428) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=11 from=(27.3229256,27.3633518) to=(27.319025,27.3672428) | 
 | path.quadTo(27.3209743,27.3652973, 27.319025,27.3672428); | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=10 (24.9708939,33.0220299 24.973814,29.7083225 27.319025,27.3672428) t=0 [0] (24.9708939,33.0220299) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=10 from=(27.319025,27.3672428) to=(24.9708939,33.0220299) | 
 | path.quadTo(24.973814,29.7083225, 24.9708939,33.0220299); | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=9 (27.3090477,38.6809464 24.9679718,36.3357391 24.9708939,33.0220299) t=0 [0] (27.3090477,38.6809464) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=9 from=(24.9708939,33.0220299) to=(27.3090477,38.6809464) | 
 | path.quadTo(24.9679718,36.3357391, 27.3090477,38.6809464); | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=8 (32.9638329,41.0290833 29.6501274,41.0261612 27.3090477,38.6809464) t=0 [0] (32.9638329,41.0290833) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=8 from=(27.3090477,38.6809464) to=(32.9638329,41.0290833) | 
 | path.quadTo(29.6501274,41.0261612, 32.9638329,41.0290833); | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=7 (38.6227531,38.6909218 36.2775421,41.0320053 32.9638329,41.0290833) t=0 [0] (38.6227531,38.6909218) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=7 from=(32.9638329,41.0290833) to=(38.6227531,38.6909218) | 
 | path.quadTo(36.2775421,41.0320053, 38.6227531,38.6909218); | 
 | SkOpSegment::findNextOp simple | 
 | SkOpSegment::markDoneBinary id=6 (38.6341171,38.6795731 38.6284409,38.6852493 38.6227531,38.6909218) t=0 [0] (38.6341171,38.6795731) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | bridgeOp current id=6 from=(38.6227531,38.6909218) to=(38.6341171,38.6795731) | 
 | path.quadTo(38.6284409,38.6852493, 38.6341171,38.6795731); | 
 | SkOpSegment::findNextOp | 
 | SkOpAngle::dumpOne [5/3] next=5/2 sect=21/21  s=0.0149880862 [4] e=1 [5] sgn=-1 windVal=1 windSum=-1 oppVal=0 oppSum=0 | 
 | SkOpAngle::dumpOne [5/2] next=21/4 sect=1/1  s=0.0149880862 [4] e=0 [0] sgn=1 windVal=1 windSum=? done unorderable | 
 | SkOpAngle::dumpOne [21/4] next=21/5 sect=1/1  s=0.0026162254 [7] e=0.00258220891 [3] sgn=1 windVal=1 windSum=? oppVal=1 oppSum=? done unorderable operand | 
 | SkOpAngle::dumpOne [21/5] next=5/3 sect=17/17  s=0.0026162254 [7] e=0.00362998223 [8] sgn=-1 windVal=1 windSum=? oppVal=1 oppSum=? operand | 
 | SkOpSegment::activeOp id=5 t=0.0149880862 tEnd=0 op=union miFrom=0 miTo=1 suFrom=0 suTo=0 result=1 | 
 | SkOpSegment::activeOp id=21 t=0.0026162254 tEnd=0.00258220891 op=union miFrom=1 miTo=0 suFrom=0 suTo=1 result=0 | 
 | SkOpSegment::activeOp id=21 t=0.0026162254 tEnd=0.00362998223 op=union miFrom=0 miTo=1 suFrom=1 suTo=0 result=0 | 
 | SkOpSegment::markDoneBinary id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.0026162254 [7] (38.6445847,38.6690979) tEnd=0.00362998223 newWindSum=-2147483647 newOppSum=-2147483647 oppSum=? windSum=? windValue=1 oppValue=1 | 
 | SkOpSegment::markDoneBinary id=5 (38.6447449,38.6689377 38.6394348,38.6742554 38.6341171,38.6795731) t=0.0149880862 [4] (38.6445847,38.6690979) tEnd=1 newWindSum=-1 newOppSum=0 oppSum=0 windSum=-1 windValue=1 oppValue=0 | 
 | SkOpSegment::findNextOp from:[5] to:[5] start=4 end=0 | 
 | bridgeOp current id=5 from=(38.6341171,38.6795731) to=(38.6445847,38.6690979) | 
 | path.quadTo(38.6393547,38.6743355, 38.6445847,38.6690979); | 
 | SkOpSegment::debugShowActiveSpans id=21 (38.6568527,38.6568527 36.3137093,41 33,41) t=0.00362998223 (38.6398277,38.6738319) tEnd=1 other=17 otherT=0 otherIndex=0 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=22 (33,41 29.6862907,41 27.3431454,38.6568527) t=0 (33,41) tEnd=1 other=21 otherT=1 otherIndex=10 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=23 (27.3431454,38.6568527 25,36.3137093 25,33) t=0 (27.3431454,38.6568527) tEnd=1 other=22 otherT=1 otherIndex=1 windSum=? windValue=1 oppValue=0 | 
 | SkOpSegment::debugShowActiveSpans id=17 (38.6398277,38.6738319 38.6447258,38.6689186) t=0 (38.6398277,38.6738319) tEnd=1 other=21 otherT=0.00362998223 otherIndex=8 windSum=? windValue=1 oppValue=0 | 
 | d:\cygwin\puregit\src\pathops\skopsegment.cpp:472: failed assertion "span.fT > 0" | 
 | </div> | 
 | </div> | 
 |  | 
 | <script type="text/javascript"> | 
 |  | 
 | var testDivs = [ | 
 |     fuzz763_1026368, | 
 | ]; | 
 |  | 
 | var decimal_places = 3; // make this 3 to show more precision | 
 |  | 
 | var tests = []; | 
 | var testLines = []; | 
 | var testTitles = []; | 
 | var testIndex = 0; | 
 | var ctx; | 
 |  | 
 | var xmin, xmax, focusXmin, focusXmax; | 
 | var ymin, ymax, focusYmin, focusYmax; | 
 | var scale; | 
 | var mouseX, mouseY; | 
 | var srcLeft, srcTop; | 
 | var screenWidth, screenHeight; | 
 | var drawnPts, drawnLines, drawnQuads, drawnCubics; | 
 | var curveT = 0; | 
 |  | 
 | var pt_labels = 2; | 
 | var collect_bounds = false; | 
 | var control_lines = 0; | 
 | var curve_t = false; | 
 | var debug_xy = 1; | 
 | var focus_enabled = false; | 
 | var focus_on_selection = false; | 
 | var step_limit = 0; | 
 | var draw_active = false; | 
 | var draw_add = false; | 
 | var draw_angle = 0; | 
 | var draw_deriviatives = 0; | 
 | var draw_hints = false; | 
 | var draw_hodo = 0; | 
 | var draw_id = false; | 
 | var draw_intersection = 0; | 
 | var draw_intersectT = false; | 
 | var draw_legend = true; | 
 | var draw_log = false; | 
 | var draw_mark = false; | 
 | var draw_midpoint = false; | 
 | var draw_op = 0; | 
 | var draw_sequence = false; | 
 | var draw_sort = 0; | 
 | var draw_path = 3; | 
 | var draw_computed = 0; | 
 | var retina_scale = !!window.devicePixelRatio; | 
 |  | 
 | var activeCount = 0; | 
 | var addCount = 0; | 
 | var angleCount = 0; | 
 | var opCount = 0; | 
 | var sectCount = 0; | 
 | var sortCount = 0; | 
 | var markCount = 0; | 
 | var activeMax = 0; | 
 | var addMax = 0; | 
 | var angleMax = 0; | 
 | var sectMax = 0; | 
 | var sectMax2 = 0; | 
 | var sortMax = 0; | 
 | var markMax = 0; | 
 | var opMax = 0; | 
 | var stepMax = 0; | 
 | var lastIndex = 0; | 
 | var hasPath = false; | 
 | var hasComputedPath = false; | 
 |  | 
 | var firstActiveSpan = -1; | 
 | var logStart = -1; | 
 | var logRange = 0; | 
 |  | 
 | var SPAN_ID = 0; | 
 | var SPAN_X1 = SPAN_ID + 1; | 
 | var SPAN_Y1 = SPAN_X1 + 1; | 
 | var SPAN_X2 = SPAN_Y1 + 1; | 
 | var SPAN_Y2 = SPAN_X2 + 1; | 
 | var SPAN_L_T = SPAN_Y2 + 1; | 
 | var SPAN_L_TX = SPAN_L_T + 1; | 
 | var SPAN_L_TY = SPAN_L_TX + 1; | 
 | var SPAN_L_TEND = SPAN_L_TY + 1; | 
 | var SPAN_L_OTHER = SPAN_L_TEND + 1; | 
 | var SPAN_L_OTHERT = SPAN_L_OTHER + 1; | 
 | var SPAN_L_OTHERI = SPAN_L_OTHERT + 1; | 
 | var SPAN_L_SUM = SPAN_L_OTHERI + 1; | 
 | var SPAN_L_VAL = SPAN_L_SUM + 1; | 
 | var SPAN_L_OPP = SPAN_L_VAL + 1; | 
 |  | 
 | var SPAN_X3 = SPAN_Y2 + 1; | 
 | var SPAN_Y3 = SPAN_X3 + 1; | 
 | var SPAN_Q_T = SPAN_Y3 + 1; | 
 | var SPAN_Q_TX = SPAN_Q_T + 1; | 
 | var SPAN_Q_TY = SPAN_Q_TX + 1; | 
 | var SPAN_Q_TEND = SPAN_Q_TY + 1; | 
 | var SPAN_Q_OTHER = SPAN_Q_TEND + 1; | 
 | var SPAN_Q_OTHERT = SPAN_Q_OTHER + 1; | 
 | var SPAN_Q_OTHERI = SPAN_Q_OTHERT + 1; | 
 | var SPAN_Q_SUM = SPAN_Q_OTHERI + 1; | 
 | var SPAN_Q_VAL = SPAN_Q_SUM + 1; | 
 | var SPAN_Q_OPP = SPAN_Q_VAL + 1; | 
 |  | 
 | var SPAN_X4 = SPAN_Y3 + 1; | 
 | var SPAN_Y4 = SPAN_X4 + 1; | 
 | var SPAN_C_T = SPAN_Y4 + 1; | 
 | var SPAN_C_TX = SPAN_C_T + 1; | 
 | var SPAN_C_TY = SPAN_C_TX + 1; | 
 | var SPAN_C_TEND = SPAN_C_TY + 1; | 
 | var SPAN_C_OTHER = SPAN_C_TEND + 1; | 
 | var SPAN_C_OTHERT = SPAN_C_OTHER + 1; | 
 | var SPAN_C_OTHERI = SPAN_C_OTHERT + 1; | 
 | var SPAN_C_SUM = SPAN_C_OTHERI + 1; | 
 | var SPAN_C_VAL = SPAN_C_SUM + 1; | 
 | var SPAN_C_OPP = SPAN_C_VAL + 1; | 
 |  | 
 | var ACTIVE_LINE_SPAN =        1; | 
 | var ACTIVE_QUAD_SPAN =        ACTIVE_LINE_SPAN + 1; | 
 | var ACTIVE_CUBIC_SPAN =       ACTIVE_QUAD_SPAN + 1; | 
 |  | 
 | var ADD_MOVETO =              ACTIVE_CUBIC_SPAN + 1; | 
 | var ADD_LINETO =              ADD_MOVETO + 1; | 
 | var ADD_QUADTO =              ADD_LINETO + 1; | 
 | var ADD_CUBICTO =             ADD_QUADTO + 1; | 
 | var ADD_CLOSE =               ADD_CUBICTO + 1; | 
 | var ADD_FILL =                ADD_CLOSE + 1; | 
 |  | 
 | var PATH_LINE =               ADD_FILL + 1; | 
 | var PATH_QUAD =               PATH_LINE + 1; | 
 | var PATH_CUBIC =              PATH_QUAD + 1; | 
 |  | 
 | var INTERSECT_LINE =          PATH_CUBIC + 1; | 
 | var INTERSECT_LINE_2 =        INTERSECT_LINE + 1; | 
 | var INTERSECT_LINE_NO =       INTERSECT_LINE_2 + 1; | 
 | var INTERSECT_QUAD_LINE =     INTERSECT_LINE_NO + 1; | 
 | var INTERSECT_QUAD_LINE_2 =   INTERSECT_QUAD_LINE + 1; | 
 | var INTERSECT_QUAD_LINE_NO =  INTERSECT_QUAD_LINE_2 + 1; | 
 | var INTERSECT_QUAD =          INTERSECT_QUAD_LINE_NO + 1; | 
 | var INTERSECT_QUAD_2 =        INTERSECT_QUAD + 1; | 
 | var INTERSECT_QUAD_NO =       INTERSECT_QUAD_2 + 1; | 
 | var INTERSECT_SELF_CUBIC =    INTERSECT_QUAD_NO + 1; | 
 | var INTERSECT_SELF_CUBIC_NO = INTERSECT_SELF_CUBIC + 1; | 
 | var INTERSECT_CUBIC_LINE =    INTERSECT_SELF_CUBIC_NO + 1; | 
 | var INTERSECT_CUBIC_LINE_2 =  INTERSECT_CUBIC_LINE + 1; | 
 | var INTERSECT_CUBIC_LINE_3 =  INTERSECT_CUBIC_LINE_2 + 1; | 
 | var INTERSECT_CUBIC_LINE_NO = INTERSECT_CUBIC_LINE_3 + 1; | 
 | var INTERSECT_CUBIC_QUAD =    INTERSECT_CUBIC_LINE_NO + 1; | 
 | var INTERSECT_CUBIC_QUAD_2 =  INTERSECT_CUBIC_QUAD + 1; | 
 | var INTERSECT_CUBIC_QUAD_3 =  INTERSECT_CUBIC_QUAD_2 + 1; | 
 | var INTERSECT_CUBIC_QUAD_4 =  INTERSECT_CUBIC_QUAD_3 + 1; | 
 | var INTERSECT_CUBIC_QUAD_NO = INTERSECT_CUBIC_QUAD_4 + 1; | 
 | var INTERSECT_CUBIC =         INTERSECT_CUBIC_QUAD_NO + 1; | 
 | var INTERSECT_CUBIC_2 =       INTERSECT_CUBIC + 1; | 
 | var INTERSECT_CUBIC_3 =       INTERSECT_CUBIC_2 + 1; | 
 | var INTERSECT_CUBIC_4 =       INTERSECT_CUBIC_3 + 1; | 
 | // FIXME: add cubic 5- 9 | 
 | var INTERSECT_CUBIC_NO =      INTERSECT_CUBIC_4 + 1; | 
 |  | 
 | var SORT_UNARY =              INTERSECT_CUBIC_NO + 1; | 
 | var SORT_BINARY =             SORT_UNARY + 1; | 
 |  | 
 | var OP_DIFFERENCE =           SORT_BINARY + 1; | 
 | var OP_INTERSECT =            OP_DIFFERENCE + 1; | 
 | var OP_UNION =                OP_INTERSECT + 1; | 
 | var OP_XOR =                  OP_UNION + 1; | 
 |  | 
 | var MARK_LINE =               OP_XOR + 1; | 
 | var MARK_QUAD =               MARK_LINE + 1; | 
 | var MARK_CUBIC =              MARK_QUAD + 1; | 
 | var MARK_DONE_LINE =          MARK_CUBIC + 1; | 
 | var MARK_DONE_QUAD =          MARK_DONE_LINE + 1; | 
 | var MARK_DONE_CUBIC =         MARK_DONE_QUAD + 1; | 
 | var MARK_UNSORTABLE_LINE =    MARK_DONE_CUBIC + 1; | 
 | var MARK_UNSORTABLE_QUAD =    MARK_UNSORTABLE_LINE + 1; | 
 | var MARK_UNSORTABLE_CUBIC =   MARK_UNSORTABLE_QUAD + 1; | 
 | var MARK_SIMPLE_LINE =        MARK_UNSORTABLE_CUBIC + 1; | 
 | var MARK_SIMPLE_QUAD =        MARK_SIMPLE_LINE + 1; | 
 | var MARK_SIMPLE_CUBIC =       MARK_SIMPLE_QUAD + 1; | 
 | var MARK_SIMPLE_DONE_LINE =   MARK_SIMPLE_CUBIC + 1; | 
 | var MARK_SIMPLE_DONE_QUAD =   MARK_SIMPLE_DONE_LINE + 1; | 
 | var MARK_SIMPLE_DONE_CUBIC =  MARK_SIMPLE_DONE_QUAD + 1; | 
 | var MARK_DONE_UNARY_LINE =    MARK_SIMPLE_DONE_CUBIC + 1; | 
 | var MARK_DONE_UNARY_QUAD =    MARK_DONE_UNARY_LINE + 1; | 
 | var MARK_DONE_UNARY_CUBIC =   MARK_DONE_UNARY_QUAD + 1; | 
 | var MARK_ANGLE_LAST =         MARK_DONE_UNARY_CUBIC + 1; | 
 |  | 
 | var COMPUTED_SET_1 =          MARK_ANGLE_LAST + 1; | 
 | var COMPUTED_SET_2 =          COMPUTED_SET_1 + 1; | 
 |  | 
 | var ANGLE_AFTER =             COMPUTED_SET_2; | 
 | var ANGLE_AFTER2 =            ANGLE_AFTER + 1; | 
 |  | 
 | var ACTIVE_OP =               ANGLE_AFTER2 + 1; | 
 |  | 
 | var FRAG_TYPE_LAST =          ACTIVE_OP; | 
 |  | 
 | var REC_TYPE_UNKNOWN = -1; | 
 | var REC_TYPE_PATH = 0; | 
 | var REC_TYPE_SECT = 1; | 
 | var REC_TYPE_ACTIVE = 2; | 
 | var REC_TYPE_ADD = 3; | 
 | var REC_TYPE_SORT = 4; | 
 | var REC_TYPE_OP = 5; | 
 | var REC_TYPE_MARK = 6; | 
 | var REC_TYPE_COMPUTED = 7; | 
 | var REC_TYPE_COIN = 8; | 
 | var REC_TYPE_ANGLE = 9; | 
 | var REC_TYPE_ACTIVE_OP = 10; | 
 | var REC_TYPE_LAST = REC_TYPE_ACTIVE_OP; | 
 |  | 
 | function strs_to_nums(strs) { | 
 |     var result = []; | 
 |     for (var idx = 1; idx < strs.length; ++idx) { | 
 |         var str = strs[idx]; | 
 |         var num = parseFloat(str); | 
 |         if (isNaN(num)) { | 
 |             result.push(str); | 
 |         } else { | 
 |             result.push(num); | 
 |         } | 
 |     } | 
 |     return result; | 
 | } | 
 |  | 
 | function filter_str_by(id, str, regex, array) { | 
 |     if (regex.test(str)) { | 
 |         var strs = regex.exec(str); | 
 |         var result = strs_to_nums(strs); | 
 |         array.push(id); | 
 |         array.push(result); | 
 |         return true; | 
 |     } | 
 |     return false; | 
 | } | 
 |  | 
 | function construct_regexp2(pattern) { | 
 |     var escape = pattern.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&'); | 
 |     escape = escape.replace(/UNSORTABLE/g, "\\*\\*\\* UNSORTABLE \\*\\*\\*"); | 
 |     escape = escape.replace(/CUBIC_VAL/g, "\\(P_VAL P_VAL P_VAL P_VAL\\)"); | 
 |     escape = escape.replace(/QUAD_VAL/g, "\\(P_VAL P_VAL P_VAL\\)"); | 
 |     escape = escape.replace(/LINE_VAL/g, "\\(P_VAL P_VAL\\)"); | 
 |     escape = escape.replace(/FILL_TYPE/g, "SkPath::k[a-zA-Z]+_FillType"); | 
 |     escape = escape.replace(/PT_VAL/g, "\\(P_VAL\\)"); | 
 |     escape = escape.replace(/P_VAL/g, "(-?\\d+\\.?\\d*(?:e-?\\d+)?)[Ff]?, ?(-?\\d+\\.?\\d*(?:e-?\\d+)?)[Ff]?"); | 
 |     escape = escape.replace(/T_VAL/g, "(-?\\d+\\.?\\d*(?:e-?\\d+)?)"); | 
 |     escape = escape.replace(/PATH/g, "pathB?"); | 
 |     escape = escape.replace(/IDX/g, "(\\d+)"); | 
 |     escape = escape.replace(/NUM/g, "(-?\\d+)"); | 
 |     escape = escape.replace(/OPT/g, "(\\?|-?\\d+)"); | 
 |     return new RegExp(escape, 'i'); | 
 | } | 
 |  | 
 | function construct_regexp2c(pattern) { | 
 |     var escape = pattern.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&'); | 
 |     escape = escape.replace(/UNSORTABLE/g, "\\*\\*\\* UNSORTABLE \\*\\*\\*"); | 
 |     escape = escape.replace(/CUBIC_VAL/g, "(?:\\$\\d = )?\\{\\{P_VAL\\}, \\{P_VAL\\}, \\{P_VAL\\}, \\{P_VAL\\}\\}"); | 
 |     escape = escape.replace(/QUAD_VAL/g, "(?:\\$\\d = )?\\{\\{P_VAL\\}, \\{P_VAL\\}, \\{P_VAL\\}\\}"); | 
 |     escape = escape.replace(/LINE_VAL/g, "(?:\\$\\d = )?\\{\\{P_VAL\\}, \\{P_VAL\\}\\}"); | 
 |     escape = escape.replace(/FILL_TYPE/g, "SkPath::k[a-zA-Z]+_FillType"); | 
 |     escape = escape.replace(/PT_VAL/g, "\\{\\{P_VAL\\}\\}"); | 
 |     escape = escape.replace(/P_VAL/g, "(?:f?[xX] = )?(-?\\d+\\.?\\d*(?:e-?\\d+)?)[Ff]?,(?: f?[yY] = )?(-?\\d+\\.?\\d*(?:e-?\\d+)?)[Ff]?"); | 
 |     escape = escape.replace(/T_VAL/g, "(-?\\d+\\.?\\d*(?:e-?\\d+)?)"); | 
 |     escape = escape.replace(/OPER/g, "[a-z]+"); | 
 |     escape = escape.replace(/PATH/g, "pathB?"); | 
 |     escape = escape.replace(/T_F/g, "([TF])"); | 
 |     escape = escape.replace(/IDX/g, "(\\d+)"); | 
 |     escape = escape.replace(/NUM/g, "(-?\\d+)"); | 
 |     escape = escape.replace(/OPT/g, "(\\?|-?\\d+)"); | 
 |     return new RegExp(escape, 'i'); | 
 | } | 
 |  | 
 | function match_regexp(str, lineNo, array, id, pattern) { | 
 |     var regex = construct_regexp2(pattern); | 
 |     if (filter_str_by(id, str, regex, array)) { | 
 |         return true; | 
 |     } | 
 |     regex = construct_regexp2c(pattern); | 
 |     return filter_str_by(id, str, regex, array); | 
 | } | 
 |  | 
 | function endsWith(str, suffix) { | 
 |     return str.indexOf(suffix, str.length - suffix.length) !== -1; | 
 | } | 
 |  | 
 | function parse_all(test) { | 
 |     var lines = test.match(/[^\r\n]+/g); | 
 |     var records = []; // a rec can be the original paths, a set of intersections, a set of active spans, a sort, or a path add | 
 |     var record = []; | 
 |     var recType = REC_TYPE_UNKNOWN; | 
 |     var lastLineNo; | 
 |     var moveX, moveY; | 
 |     for (var lineNo = 0; lineNo < lines.length; ++lineNo) { | 
 |         var line = lines[lineNo]; | 
 |         if (line.length == 0) { | 
 |             continue; | 
 |         } | 
 |         var opStart = "SkOpSegment::"; | 
 |         if (line.lastIndexOf(opStart, 0) === 0) { | 
 |             line = line.substr(opStart.length); | 
 |         } | 
 |         var angleStart = "SkOpAngle::"; | 
 |         if (line.lastIndexOf(angleStart, 0) === 0) { | 
 |             line = line.substr(angleStart.length); | 
 |         } | 
 |         var type = line.lastIndexOf("debugShowActiveSpans", 0) === 0 ? REC_TYPE_ACTIVE  | 
 |                 : line.lastIndexOf("debugShowTs", 0) === 0 ? REC_TYPE_COIN  | 
 |                 : line.lastIndexOf("debugShow", 0) === 0 ? REC_TYPE_SECT | 
 |                 : line.lastIndexOf("activeOp", 0) === 0 ? REC_TYPE_ACTIVE_OP | 
 |                 : line.lastIndexOf("computed", 0) === 0 ? REC_TYPE_COMPUTED | 
 |                 : line.lastIndexOf("debugOne", 0) === 0 ? REC_TYPE_SORT | 
 |                 : line.lastIndexOf("dumpOne", 0) === 0 ? REC_TYPE_SORT | 
 |                 : line.lastIndexOf("pathB.", 0) === 0 ? REC_TYPE_ADD | 
 |                 : line.lastIndexOf("path.", 0) === 0 ? REC_TYPE_ADD | 
 |                 : line.lastIndexOf("after", 0) === 0 ? REC_TYPE_ANGLE | 
 |                 : line.lastIndexOf("mark", 0) === 0 ? REC_TYPE_MARK | 
 |                 : line.lastIndexOf("  {{", 0) === 0 ? REC_TYPE_COMPUTED | 
 |                 : line.lastIndexOf("{{", 0) === 0 ? REC_TYPE_PATH | 
 |                 : line.lastIndexOf("op", 0) === 0 ? REC_TYPE_OP | 
 |                 : line.lastIndexOf("$", 0) === 0 ? REC_TYPE_PATH | 
 |                 : REC_TYPE_UNKNOWN; | 
 |         if (recType != type || recType == REC_TYPE_ADD || recType == REC_TYPE_SECT | 
 |                 || recType == REC_TYPE_ACTIVE_OP || recType == REC_TYPE_ANGLE) { | 
 |             if (recType != REC_TYPE_UNKNOWN) { | 
 |                 records.push(recType); | 
 |                 records.push(lastLineNo); | 
 |                 records.push(record); | 
 |             } | 
 |             record = []; | 
 |             recType = type; | 
 |             lastLineNo = lineNo; | 
 |         } | 
 |         var found = false; | 
 |         switch (recType) { | 
 |             case REC_TYPE_ACTIVE: | 
 |                 found = match_regexp(line, lineNo, record, ACTIVE_LINE_SPAN, "debugShowActiveSpans" + | 
 | " id=IDX LINE_VAL t=T_VAL PT_VAL tEnd=T_VAL other=IDX otherT=T_VAL otherIndex=IDX windSum=OPT windValue=IDX oppValue=NUM" | 
 |                 ) || match_regexp(line, lineNo, record, ACTIVE_QUAD_SPAN, "debugShowActiveSpans" + | 
 | " id=IDX QUAD_VAL t=T_VAL PT_VAL tEnd=T_VAL other=IDX otherT=T_VAL otherIndex=IDX windSum=OPT windValue=IDX oppValue=NUM" | 
 |                 ) || match_regexp(line, lineNo, record, ACTIVE_CUBIC_SPAN, "debugShowActiveSpans" + | 
 | " id=IDX CUBIC_VAL t=T_VAL PT_VAL tEnd=T_VAL other=IDX otherT=T_VAL otherIndex=IDX windSum=OPT windValue=IDX oppValue=NUM" | 
 |                 ); | 
 |                 break; | 
 |             case REC_TYPE_ACTIVE_OP: | 
 |                 found = match_regexp(line, lineNo, record, ACTIVE_OP, "activeOp" + | 
 | " id=IDX t=T_VAL tEnd=T_VAL op=OPER miFrom=NUM miTo=NUM suFrom=NUM suTo=NUM result=IDX" | 
 |                 ); | 
 |                 break; | 
 |             case REC_TYPE_ADD: | 
 |                 if (match_regexp(line, lineNo, record, ADD_MOVETO, "PATH.moveTo(P_VAL);")) { | 
 |                     moveX = record[1][0]; | 
 |                     moveY = record[1][1]; | 
 |                     found = true; | 
 |                 } else if (match_regexp(line, lineNo, record, ADD_LINETO, "PATH.lineTo(P_VAL);")) { | 
 |                     record[1].unshift(moveY); | 
 |                     record[1].unshift(moveX); | 
 |                     moveX = record[1][2]; | 
 |                     moveY = record[1][3]; | 
 |                     found = true; | 
 |                 } else if (match_regexp(line, lineNo, record, ADD_QUADTO, "PATH.quadTo(P_VAL, P_VAL);")) { | 
 |                     record[1].unshift(moveY); | 
 |                     record[1].unshift(moveX); | 
 |                     moveX = record[1][4]; | 
 |                     moveY = record[1][5]; | 
 |                     found = true; | 
 |                 } else if (match_regexp(line, lineNo, record, ADD_CUBICTO, "PATH.cubicTo(P_VAL, P_VAL, P_VAL);")) { | 
 |                     record[1].unshift(moveY); | 
 |                     record[1].unshift(moveX); | 
 |                     moveX = record[1][6]; | 
 |                     moveY = record[1][7]; | 
 |                     found = true; | 
 |                 } else if (match_regexp(line, lineNo, record, ADD_FILL, "PATH.setFillType(FILL_TYPE);")) { | 
 |                     found = true; | 
 |                 } else { | 
 |                     found = match_regexp(line, lineNo, record, ADD_CLOSE, "PATH.close();"); | 
 |                 } | 
 |                 break; | 
 |             case REC_TYPE_ANGLE: | 
 |                 found = match_regexp(line, lineNo, record, ANGLE_AFTER, "after " + | 
 | "id=IDX IDX/IDX tStart=T_VAL tEnd=T_VAL < id=IDX IDX/IDX tStart=T_VAL tEnd=T_VAL < id=IDX IDX/IDX tStart=T_VAL tEnd=T_VAL  T_F IDX"); | 
 |                 if (found) { | 
 |                     break; | 
 |                 } | 
 |                 found = match_regexp(line, lineNo, record, ANGLE_AFTER2, "after " + | 
 | "[IDX/IDX] NUM/NUM tStart=T_VAL tEnd=T_VAL < [IDX/IDX] NUM/NUM tStart=T_VAL tEnd=T_VAL < [IDX/IDX] NUM/NUM tStart=T_VAL tEnd=T_VAL  T_F IDX"); | 
 |                 break; | 
 |             case REC_TYPE_COIN: | 
 |                 found = true; | 
 |                 break; | 
 |             case REC_TYPE_COMPUTED: | 
 |                 found = line ==  "computed quadratics given" | 
 |                   || match_regexp(line, lineNo, record, COMPUTED_SET_1, "computed quadratics set 1" | 
 |                 ) || match_regexp(line, lineNo, record, COMPUTED_SET_2, "computed quadratics set 2" | 
 |                 ) || match_regexp(line, lineNo, record, PATH_QUAD, "  QUAD_VAL," | 
 |                 ) || match_regexp(line, lineNo, record, PATH_CUBIC, "  CUBIC_VAL," | 
 |                 ); | 
 |                 break; | 
 |             case REC_TYPE_PATH: | 
 |                 found = match_regexp(line, lineNo, record, PATH_LINE, "LINE_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, PATH_QUAD, "QUAD_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, PATH_CUBIC, "CUBIC_VAL" | 
 |                 ); | 
 |                 break; | 
 |             case REC_TYPE_SECT: | 
 |                 found = match_regexp(line, lineNo, record, INTERSECT_LINE, "debugShowLineIntersection" + | 
 | " wtTs[0]=T_VAL LINE_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_LINE_2, "debugShowLineIntersection" + | 
 | " wtTs[0]=T_VAL LINE_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_LINE_NO, "debugShowLineIntersection" + | 
 | " no intersect LINE_VAL LINE_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_LINE, "debugShowQuadLineIntersection" + | 
 | " wtTs[0]=T_VAL QUAD_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_LINE_2, "debugShowQuadLineIntersection" + | 
 | " wtTs[0]=T_VAL QUAD_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_LINE_NO, "debugShowQuadLineIntersection" + | 
 | " no intersect QUAD_VAL LINE_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD, "debugShowQuadIntersection" + | 
 | " wtTs[0]=T_VAL QUAD_VAL PT_VAL wnTs[0]=T_VAL QUAD_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_2, "debugShowQuadIntersection" + | 
 | " wtTs[0]=T_VAL QUAD_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL QUAD_VAL wnTs[1]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_QUAD_NO, "debugShowQuadIntersection" + | 
 | " no intersect QUAD_VAL QUAD_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE, "debugShowCubicLineIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE_2, "debugShowCubicLineIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE_3, "debugShowCubicLineIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL PT_VAL wnTs[0]=T_VAL LINE_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_LINE_NO, "debugShowCubicLineIntersection" + | 
 | " no intersect CUBIC_VAL LINE_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_QUAD, "debugShowCubicQuadIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wnTs[0]=T_VAL QUAD_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_QUAD_2, "debugShowCubicQuadIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL QUAD_VAL wnTs[1]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_QUAD_3, "debugShowCubicQuadIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL PT_VAL wnTs[0]=T_VAL QUAD_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_QUAD_4, "debugShowCubicQuadIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL wtTs[3]=T_VAL PT_VAL wnTs[0]=T_VAL QUAD_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL wnTs[3]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_QUAD_NO, "debugShowCubicQuadIntersection" + | 
 | " no intersect CUBIC_VAL QUAD_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC, "debugShowCubicIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_2, "debugShowCubicIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL wnTs[1]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_3, "debugShowCubicIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_4, "debugShowCubicIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL PT_VAL wtTs[2]=T_VAL PT_VAL wtTs[3]=T_VAL PT_VAL wnTs[0]=T_VAL CUBIC_VAL wnTs[1]=T_VAL wnTs[2]=T_VAL wnTs[3]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_CUBIC_NO, "debugShowCubicIntersection" + | 
 | " no intersect CUBIC_VAL CUBIC_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_SELF_CUBIC, "debugShowCubicIntersection" + | 
 | " wtTs[0]=T_VAL CUBIC_VAL PT_VAL wtTs[1]=T_VAL" | 
 |                 ) || match_regexp(line, lineNo, record, INTERSECT_SELF_CUBIC_NO, "debugShowCubicIntersection" + | 
 | " no self intersect CUBIC_VAL" | 
 |                 ); | 
 |                 break; | 
 |             case REC_TYPE_SORT: | 
 |                 var hasDone = / done/.test(line); | 
 |                 var hasUnorderable = / unorderable/.test(line); | 
 |                 var hasSmall = / small/.test(line); | 
 |                 var hasTiny = / tiny/.test(line); | 
 |                 var hasOperand = / operand/.test(line); | 
 |                 var hasStop = / stop/.test(line); | 
 |                 line.replace(/[ a-z]+$/, ""); | 
 |                 found = match_regexp(line, lineNo, record, SORT_UNARY, "debugOne" + | 
 | " [IDX/IDX] next=IDX/IDX sect=IDX/IDX  s=T_VAL [IDX] e=T_VAL [IDX] sgn=NUM windVal=IDX windSum=OPT" | 
 |                 ) || match_regexp(line, lineNo, record, SORT_BINARY, "debugOne" + | 
 | " [IDX/IDX] next=IDX/IDX sect=IDX/IDX  s=T_VAL [IDX] e=T_VAL [IDX] sgn=NUM windVal=IDX windSum=OPT oppVal=IDX oppSum=OPT" | 
 |                 ) || match_regexp(line, lineNo, record, SORT_UNARY, "dumpOne" + | 
 | " [IDX/IDX] next=IDX/IDX sect=NUM/NUM  s=T_VAL [IDX] e=T_VAL [IDX] sgn=NUM windVal=IDX windSum=OPT" | 
 |                 ) || match_regexp(line, lineNo, record, SORT_BINARY, "dumpOne" + | 
 | " [IDX/IDX] next=IDX/IDX sect=NUM/NUM  s=T_VAL [IDX] e=T_VAL [IDX] sgn=NUM windVal=IDX windSum=OPT oppVal=IDX oppSum=OPT" | 
 |                 ); | 
 |                 if (found) { | 
 |                     record[1].push(hasDone); | 
 |                     record[1].push(hasUnorderable); | 
 |                     record[1].push(hasSmall); | 
 |                     record[1].push(hasTiny); | 
 |                     record[1].push(hasOperand); | 
 |                     record[1].push(hasStop); | 
 |                 } | 
 |                 break; | 
 |             case REC_TYPE_MARK: | 
 |                 found = match_regexp(line, lineNo, record, MARK_LINE, "markWinding" + | 
 | " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_QUAD, "markWinding" + | 
 | " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_CUBIC, "markWinding" + | 
 | " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_DONE_LINE, "markDoneBinary" + | 
 | " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_DONE_QUAD, "markDoneBinary" + | 
 | " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_DONE_CUBIC, "markDoneBinary" + | 
 | " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM newOppSum=NUM oppSum=OPT windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_UNSORTABLE_LINE, "markUnsortable" + | 
 | " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_UNSORTABLE_QUAD, "markUnsortable" + | 
 | " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_UNSORTABLE_CUBIC, "markUnsortable" + | 
 | " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_LINE, "markWinding" + | 
 | " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_QUAD, "markWinding" + | 
 | " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_CUBIC, "markWinding" + | 
 | " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_DONE_LINE, "markDone" + | 
 | " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_DONE_QUAD, "markDone" + | 
 | " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_SIMPLE_DONE_CUBIC, "markDone" + | 
 | " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_DONE_UNARY_LINE, "markDoneUnary" + | 
 | " id=IDX LINE_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_DONE_UNARY_QUAD, "markDoneUnary" + | 
 | " id=IDX QUAD_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_DONE_UNARY_CUBIC, "markDoneUnary" + | 
 | " id=IDX CUBIC_VAL t=T_VAL [IDX] PT_VAL tEnd=T_VAL newWindSum=NUM windSum=OPT windValue=IDX" | 
 |                 ) || match_regexp(line, lineNo, record, MARK_ANGLE_LAST, "markAngle" + | 
 | " last id=IDX windSum=OPT small=IDX"); | 
 |                 break; | 
 |             case REC_TYPE_OP: | 
 |                 if (line.lastIndexOf("oppSign oppSign=", 0) === 0 | 
 |                         || line.lastIndexOf("operator<", 0) === 0) { | 
 |                     found = true; | 
 |                     break; | 
 |                 } | 
 |                 found = match_regexp(line, lineNo, record, OP_DIFFERENCE, "op difference" | 
 |                 ) || match_regexp(line, lineNo, record, OP_INTERSECT, "op intersect" | 
 |                 ) || match_regexp(line, lineNo, record, OP_UNION, "op union" | 
 |                 ) || match_regexp(line, lineNo, record, OP_XOR, "op xor" | 
 |                 ); | 
 |                 break; | 
 |             case REC_TYPE_UNKNOWN: | 
 |                 found = true; | 
 |                 break; | 
 |         } | 
 |         if (!found) { | 
 |             console.log(line + " [" + lineNo + "] of type " + type + " not found"); | 
 |         } | 
 |     } | 
 |     if (recType != REC_TYPE_UNKNOWN) { | 
 |         records.push(recType); | 
 |         records.push(lastLineNo); | 
 |         records.push(record); | 
 |     } | 
 |     if (records.length >= 1) { | 
 |         tests[testIndex] = records; | 
 |         testLines[testIndex] = lines; | 
 |     } | 
 | } | 
 |  | 
 | function init(test) { | 
 |     var canvas = document.getElementById('canvas'); | 
 |     if (!canvas.getContext) return; | 
 |     ctx = canvas.getContext('2d'); | 
 |     var resScale = retina_scale && window.devicePixelRatio ? window.devicePixelRatio : 1; | 
 |     var unscaledWidth = window.innerWidth - 20; | 
 |     var unscaledHeight = window.innerHeight - 20; | 
 |     screenWidth = unscaledWidth; | 
 |     screenHeight = unscaledHeight; | 
 |     canvas.width = unscaledWidth * resScale; | 
 |     canvas.height = unscaledHeight * resScale; | 
 |     canvas.style.width = unscaledWidth + 'px'; | 
 |     canvas.style.height = unscaledHeight + 'px'; | 
 |     if (resScale != 1) { | 
 |         ctx.scale(resScale, resScale); | 
 |     } | 
 |     xmin = Infinity; | 
 |     xmax = -Infinity; | 
 |     ymin = Infinity; | 
 |     ymax = -Infinity; | 
 |     hasPath = hasComputedPath = false; | 
 |     firstActiveSpan = -1; | 
 |     for (var tIndex = 0; tIndex < test.length; tIndex += 3) { | 
 |         var recType = test[tIndex]; | 
 |         if (!typeof recType == 'number' || recType < REC_TYPE_UNKNOWN || recType > REC_TYPE_LAST) { | 
 |             console.log("unknown rec type: " + recType); | 
 |             throw "stop execution"; | 
 |         } | 
 |         var records = test[tIndex + 2]; | 
 |         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |             var fragType = records[recordIndex]; | 
 |             if (!typeof fragType == 'number' || fragType < 1 || fragType > FRAG_TYPE_LAST) { | 
 |                 console.log("unknown in range frag type: " + fragType); | 
 |                 throw "stop execution"; | 
 |             } | 
 |             var frags = records[recordIndex + 1]; | 
 |             var first = 0; | 
 |             var last = -1; | 
 |             var first2 = 0; | 
 |             var last2 = 0; | 
 |             switch (recType) { | 
 |                 case REC_TYPE_COMPUTED: | 
 |                     if (fragType == COMPUTED_SET_1 || fragType == COMPUTED_SET_2) { | 
 |                         break; | 
 |                     } | 
 |                     hasComputedPath = true; | 
 |                 case REC_TYPE_PATH: | 
 |                     switch (fragType) { | 
 |                         case PATH_LINE: | 
 |                             last = 4; | 
 |                             break; | 
 |                         case PATH_QUAD: | 
 |                             last = 6; | 
 |                             break; | 
 |                         case PATH_CUBIC: | 
 |                             last = 8; | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown " + (recType == REC_TYPE_PATH ? "REC_TYPE_PATH"  | 
 |                                     : "REC_TYPE_COMPUTED") + " frag type:" + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     if (recType == REC_TYPE_PATH) { | 
 |                         hasPath = true; | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_ACTIVE: | 
 |                     if (firstActiveSpan < 0) { | 
 |                         firstActiveSpan = tIndex; | 
 |                     } | 
 |                     first = 1; | 
 |                     switch (fragType) { | 
 |                         case ACTIVE_LINE_SPAN: | 
 |                             last = 5; | 
 |                             break; | 
 |                         case ACTIVE_QUAD_SPAN: | 
 |                             last = 7; | 
 |                             break; | 
 |                         case ACTIVE_CUBIC_SPAN: | 
 |                             last = 9; | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_ACTIVE frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_ADD: | 
 |                     switch (fragType) { | 
 |                         case ADD_MOVETO: | 
 |                             break; | 
 |                         case ADD_LINETO: | 
 |                             last = 4; | 
 |                             break; | 
 |                         case ADD_QUADTO: | 
 |                             last = 6; | 
 |                             break; | 
 |                         case ADD_CUBICTO: | 
 |                             last = 8; | 
 |                             break; | 
 |                         case ADD_CLOSE: | 
 |                         case ADD_FILL: | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_ADD frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_SECT: | 
 |                     switch (fragType) { | 
 |                         case INTERSECT_LINE: | 
 |                             first = 1; last = 5; first2 = 8; last2 = 12; | 
 |                             break; | 
 |                         case INTERSECT_LINE_2: | 
 |                             first = 1; last = 5; first2 = 11; last2 = 15; | 
 |                             break; | 
 |                         case INTERSECT_LINE_NO: | 
 |                             first = 0; last = 4; first2 = 4; last2 = 8; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_LINE: | 
 |                             first = 1; last = 7; first2 = 10; last2 = 14; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_LINE_2: | 
 |                             first = 1; last = 7; first2 = 13; last2 = 17; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_LINE_NO: | 
 |                             first = 0; last = 6; first2 = 6; last2 = 10; | 
 |                             break; | 
 |                         case INTERSECT_QUAD: | 
 |                             first = 1; last = 7; first2 = 10; last2 = 16; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_2: | 
 |                             first = 1; last = 7; first2 = 13; last2 = 19; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_NO: | 
 |                             first = 0; last = 6; first2 = 6; last2 = 12; | 
 |                             break; | 
 |                         case INTERSECT_SELF_CUBIC: | 
 |                             first = 1; last = 9; | 
 |                             break; | 
 |                         case INTERSECT_SELF_CUBIC_NO: | 
 |                             first = 0; last = 8; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE: | 
 |                             first = 1; last = 9; first2 = 12; last2 = 16; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE_2: | 
 |                             first = 1; last = 9; first2 = 15; last2 = 19; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE_3: | 
 |                             first = 1; last = 9; first2 = 18; last2 = 22; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE_NO: | 
 |                             first = 0; last = 8; first2 = 8; last2 = 12; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD: | 
 |                             first = 1; last = 9; first2 = 12; last2 = 18; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_2: | 
 |                             first = 1; last = 9; first2 = 15; last2 = 21; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_3: | 
 |                             first = 1; last = 9; first2 = 18; last2 = 24; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_4: | 
 |                             first = 1; last = 9; first2 = 21; last2 = 27; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_NO: | 
 |                             first = 0; last = 8; first2 = 8; last2 = 14; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC: | 
 |                             first = 1; last = 9; first2 = 12; last2 = 20; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_2: | 
 |                             first = 1; last = 9; first2 = 15; last2 = 23; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_3: | 
 |                             first = 1; last = 9; first2 = 18; last2 = 26; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_4: | 
 |                             first = 1; last = 9; first2 = 21; last2 = 29; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_NO: | 
 |                             first = 0; last = 8; first2 = 8; last2 = 16; | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_SECT frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 default: | 
 |                     continue; | 
 |             } | 
 |             for (var idx = first; idx < last; idx += 2) { | 
 |                 xmin = Math.min(xmin, frags[idx]); | 
 |                 xmax = Math.max(xmax, frags[idx]); | 
 |                 ymin = Math.min(ymin, frags[idx + 1]); | 
 |                 ymax = Math.max(ymax, frags[idx + 1]); | 
 |             } | 
 |             for (var idx = first2; idx < last2; idx += 2) { | 
 |                 xmin = Math.min(xmin, frags[idx]); | 
 |                 xmax = Math.max(xmax, frags[idx]); | 
 |                 ymin = Math.min(ymin, frags[idx + 1]); | 
 |                 ymax = Math.max(ymax, frags[idx + 1]); | 
 |             } | 
 |         } | 
 |     } | 
 |     var angleBounds = [Infinity, Infinity, -Infinity, -Infinity]; | 
 |     for (var tIndex = 0; tIndex < test.length; tIndex += 3) { | 
 |         var recType = test[tIndex]; | 
 |         var records = test[tIndex + 2]; | 
 |         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |             var fragType = records[recordIndex]; | 
 |             var frags = records[recordIndex + 1]; | 
 |             switch (recType) { | 
 |                 case REC_TYPE_ACTIVE_OP: | 
 |                     if (!draw_op) { | 
 |                         break; | 
 |                     } | 
 |                     { | 
 |                         var curve = curvePartialByID(test, frags[0], frags[1], frags[2]); | 
 |                         curve_extremes(curve, angleBounds); | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_ANGLE: | 
 |                     if (!draw_angle) { | 
 |                         break; | 
 |                     } | 
 |                     if (fragType == ANGLE_AFTER) { | 
 |                         var curve = curvePartialByID(test, frags[0], frags[3], frags[4]); | 
 |                         curve_extremes(curve, angleBounds); | 
 |                         curve = curvePartialByID(test, frags[5], frags[8], frags[9]); | 
 |                         curve_extremes(curve, angleBounds); | 
 |                         curve = curvePartialByID(test, frags[10], frags[13], frags[14]); | 
 |                     } else if (fragType == ANGLE_AFTER2) { | 
 |                         var curve = curvePartialByID(test, frags[0], frags[4], frags[5]); | 
 |                         curve_extremes(curve, angleBounds); | 
 |                         curve = curvePartialByID(test, frags[6], frags[10], frags[11]); | 
 |                         curve_extremes(curve, angleBounds); | 
 |                         curve = curvePartialByID(test, frags[12], frags[16], frags[17]); | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_SORT: | 
 |                     if (!draw_sort) { | 
 |                         break; | 
 |                     } | 
 |                     if (fragType == SORT_UNARY || fragType == SORT_BINARY) { | 
 |                         var curve = curvePartialByID(test, frags[0], frags[6], frags[8]); | 
 |                         curve_extremes(curve, angleBounds); | 
 |                     } | 
 |                     break; | 
 |             } | 
 |         } | 
 |     } | 
 |     xmin = Math.min(xmin, angleBounds[0]); | 
 |     ymin = Math.min(ymin, angleBounds[1]); | 
 |     xmax = Math.max(xmax, angleBounds[2]); | 
 |     ymax = Math.max(ymax, angleBounds[3]); | 
 |     setScale(xmin, xmax, ymin, ymax); | 
 |     if (hasPath == false && hasComputedPath == true && !draw_computed) { | 
 |         draw_computed = 3; // show both quadratics and cubics | 
 |     } | 
 |     if (hasPath == true && hasComputedPath == false && draw_computed) { | 
 |         draw_computed = 0; | 
 |     } | 
 | } | 
 |  | 
 | function curveByID(test, id) { | 
 |     var tIndex = firstActiveSpan; | 
 |     if (tIndex < 0) { | 
 |         return []; | 
 |     } | 
 |     while (tIndex < test.length) { | 
 |         var recType = test[tIndex]; | 
 |         if (recType != REC_TYPE_ACTIVE) { | 
 |             return []; | 
 |         } | 
 |         var records = test[tIndex + 2]; | 
 |         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |             var fragType = records[recordIndex]; | 
 |             var frags = records[recordIndex + 1]; | 
 |             if (frags[0] == id) { | 
 |                 switch (fragType) { | 
 |                     case ACTIVE_LINE_SPAN: | 
 |                         return [frags[1], frags[2], frags[3], frags[4]]; | 
 |                     case ACTIVE_QUAD_SPAN: | 
 |                         return [frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6]]; | 
 |                     case ACTIVE_CUBIC_SPAN: | 
 |                         return [frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6], frags[7], frags[8]]; | 
 |                 } | 
 |             } | 
 |         } | 
 |         tIndex += 3; | 
 |     } | 
 |     return []; | 
 | } | 
 |  | 
 | function curvePartialByID(test, id, t0, t1) { | 
 |     var tIndex = firstActiveSpan; | 
 |     if (tIndex < 0) { | 
 |         return []; | 
 |     } | 
 |     while (tIndex < test.length) { | 
 |         var recType = test[tIndex]; | 
 |         if (recType != REC_TYPE_ACTIVE) { | 
 |             return []; | 
 |         } | 
 |         var records = test[tIndex + 2]; | 
 |         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |             var fragType = records[recordIndex]; | 
 |             var frags = records[recordIndex + 1]; | 
 |             if (frags[0] == id) { | 
 |                 switch (fragType) { | 
 |                     case ACTIVE_LINE_SPAN: | 
 |                         return linePartial(frags[1], frags[2], frags[3], frags[4], t0, t1); | 
 |                     case ACTIVE_QUAD_SPAN: | 
 |                         return quadPartial(frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6], t0, t1); | 
 |                     case ACTIVE_CUBIC_SPAN: | 
 |                         return cubicPartial(frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6], frags[7], frags[8], t0, t1); | 
 |                 } | 
 |             } | 
 |         } | 
 |         tIndex += 3; | 
 |     } | 
 |     return []; | 
 | } | 
 |  | 
 | function idByCurve(test, frag, type) { | 
 |     var tIndex = firstActiveSpan; | 
 |     if (tIndex < 0) { | 
 |         return -1; | 
 |     } | 
 |     while (tIndex < test.length) { | 
 |         var recType = test[tIndex]; | 
 |         if (recType != REC_TYPE_ACTIVE) { | 
 |             return -1; | 
 |         } | 
 |         var records = test[tIndex + 2]; | 
 |         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |             var fragType = records[recordIndex]; | 
 |             var frags = records[recordIndex + 1]; | 
 |             switch (fragType) { | 
 |                 case ACTIVE_LINE_SPAN: | 
 |                     if (type != PATH_LINE) { | 
 |                         continue; | 
 |                     } | 
 |                     if (frag[0] != frags[1] || frag[1] != frags[2] | 
 |                             || frag[2] != frags[3] || frag[3] != frags[4]) { | 
 |                         continue; | 
 |                     } | 
 |                     return frags[0]; | 
 |                 case ACTIVE_QUAD_SPAN: | 
 |                     if (type != PATH_QUAD) { | 
 |                         continue; | 
 |                     } | 
 |                     if (frag[0] != frags[1] || frag[1] != frags[2] | 
 |                             || frag[2] != frags[3] || frag[3] != frags[4] | 
 |                             || frag[4] != frags[5] || frag[5] != frags[6]) { | 
 |                         continue; | 
 |                     } | 
 |                     return frags[0]; | 
 |                 case ACTIVE_CUBIC_SPAN: | 
 |                     if (type != PATH_CUBIC) { | 
 |                         continue; | 
 |                     } | 
 |                     if (frag[0] != frags[1] || frag[1] != frags[2] | 
 |                             || frag[2] != frags[3] || frag[3] != frags[4] | 
 |                             || frag[4] != frags[5] || frag[5] != frags[6] | 
 |                             || frag[6] != frags[7] || frag[7] != frags[8]) { | 
 |                         continue; | 
 |                     } | 
 |                     return frags[0]; | 
 |             } | 
 |         } | 
 |         ++tIndex; | 
 |     } | 
 |     return -1; | 
 | } | 
 |  | 
 | function curve_extremes(curve, bounds) { | 
 |     for (var index = 0; index < curve.length; index += 2) { | 
 |         var x = curve[index]; | 
 |         var y = curve[index + 1]; | 
 |         bounds[0] = Math.min(bounds[0], x); | 
 |         bounds[1] = Math.min(bounds[1], y); | 
 |         bounds[2] = Math.max(bounds[2], x); | 
 |         bounds[3] = Math.max(bounds[3], y); | 
 |     } | 
 | } | 
 |  | 
 | function setScale(x0, x1, y0, y1) { | 
 |     var srcWidth = x1 - x0; | 
 |     var srcHeight = y1 - y0; | 
 |     var usableWidth = screenWidth; | 
 |     var xDigits = Math.ceil(Math.log(Math.abs(xmax)) / Math.log(10)); | 
 |     var yDigits = Math.ceil(Math.log(Math.abs(ymax)) / Math.log(10)); | 
 |     usableWidth -= (xDigits + yDigits) * 10; | 
 |     usableWidth -= decimal_places * 10; | 
 |     if (draw_legend) { | 
 |         usableWidth -= 40; | 
 |     } | 
 |     var hscale = usableWidth / srcWidth; | 
 |     var vscale = screenHeight / srcHeight; | 
 |     scale = Math.min(hscale, vscale); | 
 |     var invScale = 1 / scale; | 
 |     var sxmin = x0 - invScale * 5; | 
 |     var symin = y0 - invScale * 10; | 
 |     var sxmax = x1 + invScale * (6 * decimal_places + 10); | 
 |     var symax = y1 + invScale * 10; | 
 |     srcWidth = sxmax - sxmin; | 
 |     srcHeight = symax - symin; | 
 |     hscale = usableWidth / srcWidth; | 
 |     vscale = screenHeight / srcHeight; | 
 |     scale = Math.min(hscale, vscale); | 
 |     srcLeft = sxmin; | 
 |     srcTop = symin; | 
 | } | 
 |  | 
 | function drawArc(curve, op, from, to) { | 
 |     var type = PATH_LINE + (curve.length / 2 - 2); | 
 |     var pt = pointAtT(curve, type, op ? 0.4 : 0.6); | 
 |     var dy = pt.y - curve[1]; | 
 |     var dx = pt.x - curve[0]; | 
 |     var dist = Math.sqrt(dy * dy + dx * dx); | 
 |     var _dist = dist * scale; | 
 |     var angle = Math.atan2(dy, dx); | 
 |     var _px = (curve[0] - srcLeft) * scale; | 
 |     var _py = (curve[1] - srcTop) * scale; | 
 |     var divisor = 4; | 
 |     var endDist; | 
 |     do { | 
 |         var ends = []; | 
 |         for (var index = -1; index <= 1; index += 2) { | 
 |             var px = Math.cos(index * Math.PI / divisor); | 
 |             var py = Math.sin(index * Math.PI / divisor); | 
 |             ends.push(px); | 
 |             ends.push(py); | 
 |         } | 
 |         var endDx = (ends[2] - ends[0]) * scale * dist; | 
 |         var endDy = (ends[3] - ends[1]) * scale * dist; | 
 |         endDist = Math.sqrt(endDx * endDx + endDy * endDy); | 
 |         if (endDist < 100) { | 
 |             break; | 
 |         } | 
 |         divisor *= 2; | 
 |     } while (true); | 
 |     if (endDist < 30) { | 
 |         return; | 
 |     } | 
 |     if (op) { | 
 |         divisor *= 2; | 
 |     } | 
 |     ctx.strokeStyle = op ? "rgba(210,0,45, 0.4)" : "rgba(90,90,90, 0.5)"; | 
 |     ctx.beginPath(); | 
 |     ctx.arc(_px, _py, _dist, angle - Math.PI / divisor, angle + Math.PI / divisor, false); | 
 |     ctx.stroke(); | 
 |     var saveAlign = ctx.textAlign; | 
 |     var saveStyle = ctx.fillStyle; | 
 |     var saveFont = ctx.font; | 
 |     ctx.textAlign = "center"; | 
 |     ctx.fillStyle = "black"; | 
 |     ctx.font = "normal 24px Arial"; | 
 |     divisor *= 0.8; | 
 |     for (var index = -1; index <= 1; index += 2) { | 
 |         var px = curve[0] + Math.cos(angle + index * Math.PI / divisor) * dist; | 
 |         var py = curve[1] + Math.sin(angle + index * Math.PI / divisor) * dist; | 
 |         var _px = (px - srcLeft) * scale; | 
 |         var _py = (py - srcTop) * scale; | 
 |         ctx.fillText(index < 0 ? to.toString() : from.toString(), _px, _py + 8); | 
 |     } | 
 |     ctx.textAlign = saveAlign; | 
 |     ctx.fillStyle = saveStyle; | 
 |     ctx.font = saveFont; | 
 | } | 
 |  | 
 | function drawPoint(px, py, end) { | 
 |     for (var pts = 0; pts < drawnPts.length; pts += 2) { | 
 |         var x = drawnPts[pts]; | 
 |         var y = drawnPts[pts + 1]; | 
 |         if (px == x && py == y) { | 
 |             return; | 
 |         } | 
 |     } | 
 |     drawnPts.push(px); | 
 |     drawnPts.push(py); | 
 |     var label = px.toFixed(decimal_places) + ", " + py.toFixed(decimal_places); | 
 |     var _px = (px - srcLeft) * scale; | 
 |     var _py = (py - srcTop) * scale; | 
 |     ctx.beginPath(); | 
 |     ctx.arc(_px, _py, 3, 0, Math.PI*2, true); | 
 |     ctx.closePath(); | 
 |     if (end) { | 
 |         ctx.fill(); | 
 |     } else { | 
 |         ctx.stroke(); | 
 |     } | 
 |     if (debug_xy) { | 
 |         ctx.textAlign = "left"; | 
 |         ctx.fillText(label, _px + 5, _py); | 
 |     } | 
 | } | 
 |  | 
 | function drawPoints(ptArray, curveType, drawControls) { | 
 |     var count = (curveType - PATH_LINE + 2) * 2; | 
 |     for (var idx = 0; idx < count; idx += 2) { | 
 |         if (!drawControls && idx != 0 && idx != count - 2) { | 
 |             continue; | 
 |         } | 
 |         drawPoint(ptArray[idx], ptArray[idx + 1], idx == 0 || idx == count - 2); | 
 |     } | 
 | } | 
 |  | 
 | function drawControlLines(curve, curveType, drawEnd) { | 
 |     if (curveType == PATH_LINE) { | 
 |         return; | 
 |     } | 
 |     ctx.strokeStyle = "rgba(0,0,0, 0.3)"; | 
 |     drawLine(curve[0], curve[1], curve[2], curve[3]); | 
 |     drawLine(curve[2], curve[3], curve[4], curve[5]); | 
 |     if (curveType == PATH_CUBIC) { | 
 |         drawLine(curve[4], curve[5], curve[6], curve[7]); | 
 |         if (drawEnd > 1) { | 
 |             drawLine(curve[6], curve[7], curve[0], curve[1]); | 
 |             if (drawEnd > 2) { | 
 |                 drawLine(curve[0], curve[1], curve[4], curve[5]); | 
 |                 drawLine(curve[6], curve[7], curve[2], curve[3]); | 
 |             } | 
 |         } | 
 |     } else if (drawEnd > 1) { | 
 |         drawLine(curve[4], curve[5], curve[0], curve[1]); | 
 |     } | 
 | } | 
 |  | 
 | function pointAtT(curve, curveType, t) { | 
 |     var xy = {}; | 
 |     switch (curveType) { | 
 |         case PATH_LINE: | 
 |             var a = 1 - t; | 
 |             var b = t; | 
 |             xy.x = a * curve[0] + b * curve[2]; | 
 |             xy.y = a * curve[1] + b * curve[3]; | 
 |             break; | 
 |         case PATH_QUAD: | 
 |             var one_t = 1 - t; | 
 |             var a = one_t * one_t; | 
 |             var b = 2 * one_t * t; | 
 |             var c = t * t; | 
 |             xy.x = a * curve[0] + b * curve[2] + c * curve[4]; | 
 |             xy.y = a * curve[1] + b * curve[3] + c * curve[5]; | 
 |             break; | 
 |         case PATH_CUBIC: | 
 |             var one_t = 1 - t; | 
 |             var one_t2 = one_t * one_t; | 
 |             var a = one_t2 * one_t; | 
 |             var b = 3 * one_t2 * t; | 
 |             var t2 = t * t; | 
 |             var c = 3 * one_t * t2; | 
 |             var d = t2 * t; | 
 |             xy.x = a * curve[0] + b * curve[2] + c * curve[4] + d * curve[6]; | 
 |             xy.y = a * curve[1] + b * curve[3] + c * curve[5] + d * curve[7]; | 
 |             break; | 
 |     } | 
 |     return xy; | 
 | } | 
 |      | 
 | function drawPointAtT(curve, curveType) { | 
 |     var x, y; | 
 |     var xy = pointAtT(curve, curveType, curveT); | 
 |     drawPoint(xy.x, xy.y, true); | 
 |     if (!draw_intersectT) { | 
 |         return; | 
 |     } | 
 |     ctx.fillStyle = "red"; | 
 |     drawTAtPointUp(xy.x, xy.y, curveT); | 
 | } | 
 |  | 
 | function drawTAtPointUp(px, py, t) { | 
 |     var label = t.toFixed(decimal_places); | 
 |     var _px = (px - srcLeft)* scale; | 
 |     var _py = (py - srcTop) * scale; | 
 |     ctx.fillText(label, _px + 5, _py - 10); | 
 | } | 
 |  | 
 | function drawTAtPointDown(px, py, t) { | 
 |     var label = t.toFixed(decimal_places); | 
 |     var _px = (px - srcLeft)* scale; | 
 |     var _py = (py - srcTop) * scale; | 
 |     ctx.fillText(label, _px + 5, _py + 10); | 
 | } | 
 |  | 
 | function alreadyDrawnLine(x1, y1, x2, y2) { | 
 |     if (collect_bounds) { | 
 |         if (focus_enabled) { | 
 |             focusXmin = Math.min(focusXmin, x1, x2); | 
 |             focusYmin = Math.min(focusYmin, y1, y2); | 
 |             focusXmax = Math.max(focusXmax, x1, x2); | 
 |             focusYmax = Math.max(focusYmax, y1, y2); | 
 |         } | 
 |         return true; | 
 |     } | 
 |     for (var pts = 0; pts < drawnLines.length; pts += 4) { | 
 |         if (x1 == drawnLines[pts] && y1 == drawnLines[pts + 1] | 
 |                 && x2 == drawnLines[pts + 2] && y2 == drawnLines[pts + 3]) { | 
 |             return true; | 
 |         } | 
 |     } | 
 |     drawnLines.push(x1); | 
 |     drawnLines.push(y1); | 
 |     drawnLines.push(x2); | 
 |     drawnLines.push(y2); | 
 |     return false; | 
 | } | 
 |  | 
 | function drawLine(x1, y1, x2, y2) { | 
 |     if (alreadyDrawnLine(x1, y1, x2, y2)) { | 
 |         return; | 
 |     } | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo((x1 - srcLeft) * scale, | 
 |             (y1 - srcTop) * scale); | 
 |     ctx.lineTo((x2 - srcLeft) * scale, | 
 |             (y2 - srcTop) * scale); | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function linePartial(x1, y1, x2, y2, t1, t2) { | 
 |     var dx = x1 - x2; | 
 |     var dy = y1 - y2; | 
 |     var array = [ | 
 |         x1 - t1 * dx, | 
 |         y1 - t1 * dy, | 
 |         x1 - t2 * dx, | 
 |         y1 - t2 * dy | 
 |     ]; | 
 |     return array; | 
 | } | 
 |  | 
 | function drawLinePartial(x1, y1, x2, y2, t1, t2) { | 
 |     var a = linePartial(x1, y1, x2, y2, t1, t2); | 
 |     var ax = a[0]; | 
 |     var ay = a[1]; | 
 |     var bx = a[2]; | 
 |     var by = a[3]; | 
 |     if (alreadyDrawnLine(ax, ay, bx, by)) { | 
 |         return; | 
 |     } | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo((ax - srcLeft) * scale, | 
 |             (ay - srcTop) * scale); | 
 |     ctx.lineTo((bx - srcLeft) * scale, | 
 |             (by - srcTop) * scale); | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function alreadyDrawnQuad(x1, y1, x2, y2, x3, y3) { | 
 |     if (collect_bounds) { | 
 |         if (focus_enabled) { | 
 |             focusXmin = Math.min(focusXmin, x1, x2, x3); | 
 |             focusYmin = Math.min(focusYmin, y1, y2, y3); | 
 |             focusXmax = Math.max(focusXmax, x1, x2, x3); | 
 |             focusYmax = Math.max(focusYmax, y1, y2, y3); | 
 |         } | 
 |         return true; | 
 |     } | 
 |     for (var pts = 0; pts < drawnQuads.length; pts += 6) { | 
 |         if (x1 == drawnQuads[pts] && y1 == drawnQuads[pts + 1] | 
 |                 && x2 == drawnQuads[pts + 2] && y2 == drawnQuads[pts + 3] | 
 |                 && x3 == drawnQuads[pts + 4] && y3 == drawnQuads[pts + 5]) { | 
 |             return true; | 
 |         } | 
 |     } | 
 |     drawnQuads.push(x1); | 
 |     drawnQuads.push(y1); | 
 |     drawnQuads.push(x2); | 
 |     drawnQuads.push(y2); | 
 |     drawnQuads.push(x3); | 
 |     drawnQuads.push(y3); | 
 |     return false; | 
 | } | 
 |  | 
 | function drawQuad(x1, y1, x2, y2, x3, y3) { | 
 |     if (alreadyDrawnQuad(x1, y1, x2, y2, x3, y3)) { | 
 |         return; | 
 |     } | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo((x1 - srcLeft) * scale, | 
 |             (y1 - srcTop) * scale); | 
 |     ctx.quadraticCurveTo((x2 - srcLeft) * scale, | 
 |             (y2 - srcTop) * scale, | 
 |             (x3 - srcLeft) * scale, | 
 |             (y3 - srcTop) * scale); | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function interp(A, B, t) { | 
 |     return A + (B - A) * t; | 
 | } | 
 |  | 
 | function interp_quad_coords(x1, x2, x3, t) | 
 | { | 
 |     var ab = interp(x1, x2, t); | 
 |     var bc = interp(x2, x3, t); | 
 |     var abc = interp(ab, bc, t); | 
 |     return abc; | 
 | } | 
 |  | 
 | function quadPartial(x1, y1, x2, y2, x3, y3, t1, t2) { | 
 |     var ax = interp_quad_coords(x1, x2, x3, t1); | 
 |     var ay = interp_quad_coords(y1, y2, y3, t1); | 
 |     var dx = interp_quad_coords(x1, x2, x3, (t1 + t2) / 2); | 
 |     var dy = interp_quad_coords(y1, y2, y3, (t1 + t2) / 2); | 
 |     var cx = interp_quad_coords(x1, x2, x3, t2); | 
 |     var cy = interp_quad_coords(y1, y2, y3, t2); | 
 |     var bx = 2*dx - (ax + cx)/2; | 
 |     var by = 2*dy - (ay + cy)/2; | 
 |     var array = [ | 
 |         ax, ay, bx, by, cx, cy | 
 |     ]; | 
 |     return array; | 
 | } | 
 |  | 
 | function drawQuadPartial(x1, y1, x2, y2, x3, y3, t1, t2) { | 
 |     var a = quadPartial(x1, y1, x2, y2, x3, y3, t1, t2); | 
 |     var ax = a[0]; | 
 |     var ay = a[1]; | 
 |     var bx = a[2]; | 
 |     var by = a[3]; | 
 |     var cx = a[4]; | 
 |     var cy = a[5]; | 
 |     if (alreadyDrawnQuad(ax, ay, bx, by, cx, cy)) { | 
 |         return; | 
 |     } | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo((ax - srcLeft) * scale, | 
 |             (ay - srcTop) * scale); | 
 |     ctx.quadraticCurveTo((bx - srcLeft) * scale, | 
 |             (by - srcTop) * scale, | 
 |             (cx - srcLeft) * scale, | 
 |             (cy - srcTop) * scale); | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function alreadyDrawnCubic(x1, y1, x2, y2, x3, y3, x4, y4) { | 
 |     if (collect_bounds) { | 
 |         if (focus_enabled) { | 
 |             focusXmin = Math.min(focusXmin, x1, x2, x3, x4); | 
 |             focusYmin = Math.min(focusYmin, y1, y2, y3, y4); | 
 |             focusXmax = Math.max(focusXmax, x1, x2, x3, x4); | 
 |             focusYmax = Math.max(focusYmax, y1, y2, y3, y4); | 
 |         } | 
 |         return true; | 
 |     } | 
 |     for (var pts = 0; pts < drawnCubics.length; pts += 8) { | 
 |         if (x1 == drawnCubics[pts] && y1 == drawnCubics[pts + 1] | 
 |                 && x2 == drawnCubics[pts + 2] && y2 == drawnCubics[pts + 3]  | 
 |                 && x3 == drawnCubics[pts + 4] && y3 == drawnCubics[pts + 5]  | 
 |                 && x4 == drawnCubics[pts + 6] && y4 == drawnCubics[pts + 7]) { | 
 |             return true; | 
 |         } | 
 |     } | 
 |     drawnCubics.push(x1); | 
 |     drawnCubics.push(y1); | 
 |     drawnCubics.push(x2); | 
 |     drawnCubics.push(y2); | 
 |     drawnCubics.push(x3); | 
 |     drawnCubics.push(y3); | 
 |     drawnCubics.push(x4); | 
 |     drawnCubics.push(y4); | 
 |     return false; | 
 | } | 
 |  | 
 | function drawCubic(x1, y1, x2, y2, x3, y3, x4, y4) { | 
 |     if (alreadyDrawnCubic(x1, y1, x2, y2, x3, y3, x4, y4)) { | 
 |         return; | 
 |     } | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo((x1 - srcLeft) * scale, | 
 |             (y1 - srcTop) * scale); | 
 |     ctx.bezierCurveTo((x2 - srcLeft) * scale, | 
 |             (y2 - srcTop) * scale, | 
 |             (x3 - srcLeft) * scale, | 
 |             (y3 - srcTop) * scale, | 
 |             (x4 - srcLeft) * scale, | 
 |             (y4 - srcTop) * scale); | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function interp_cubic_coords(x1, x2, x3, x4, t) | 
 | { | 
 |     var ab = interp(x1, x2, t); | 
 |     var bc = interp(x2, x3, t); | 
 |     var cd = interp(x3, x4, t); | 
 |     var abc = interp(ab, bc, t); | 
 |     var bcd = interp(bc, cd, t); | 
 |     var abcd = interp(abc, bcd, t); | 
 |     return abcd; | 
 | } | 
 |  | 
 | function cubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2) { | 
 |     var ax = interp_cubic_coords(x1, x2, x3, x4, t1); | 
 |     var ay = interp_cubic_coords(y1, y2, y3, y4, t1); | 
 |     var ex = interp_cubic_coords(x1, x2, x3, x4, (t1*2+t2)/3); | 
 |     var ey = interp_cubic_coords(y1, y2, y3, y4, (t1*2+t2)/3); | 
 |     var fx = interp_cubic_coords(x1, x2, x3, x4, (t1+t2*2)/3); | 
 |     var fy = interp_cubic_coords(y1, y2, y3, y4, (t1+t2*2)/3); | 
 |     var dx = interp_cubic_coords(x1, x2, x3, x4, t2); | 
 |     var dy = interp_cubic_coords(y1, y2, y3, y4, t2); | 
 |     var mx = ex * 27 - ax * 8 - dx; | 
 |     var my = ey * 27 - ay * 8 - dy; | 
 |     var nx = fx * 27 - ax - dx * 8; | 
 |     var ny = fy * 27 - ay - dy * 8; | 
 |     var bx = (mx * 2 - nx) / 18; | 
 |     var by = (my * 2 - ny) / 18; | 
 |     var cx = (nx * 2 - mx) / 18; | 
 |     var cy = (ny * 2 - my) / 18; | 
 |     var array = [ | 
 |         ax, ay, bx, by, cx, cy, dx, dy | 
 |     ]; | 
 |     return array; | 
 | } | 
 |      | 
 | function drawCubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2) { | 
 |     var a = cubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2); | 
 |     var ax = a[0]; | 
 |     var ay = a[1]; | 
 |     var bx = a[2]; | 
 |     var by = a[3]; | 
 |     var cx = a[4]; | 
 |     var cy = a[5]; | 
 |     var dx = a[6]; | 
 |     var dy = a[7]; | 
 |     if (alreadyDrawnCubic(ax, ay, bx, by, cx, cy, dx, dy)) { | 
 |         return; | 
 |     } | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo((ax - srcLeft) * scale, | 
 |             (ay - srcTop) * scale); | 
 |     ctx.bezierCurveTo((bx - srcLeft) * scale, | 
 |             (by - srcTop) * scale, | 
 |             (cx - srcLeft) * scale, | 
 |             (cy - srcTop) * scale, | 
 |             (dx - srcLeft) * scale, | 
 |             (dy - srcTop) * scale); | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function drawCurve(c) { | 
 |     switch (c.length) { | 
 |         case 4: | 
 |             drawLine(c[0], c[1], c[2], c[3]); | 
 |             break; | 
 |         case 6: | 
 |             drawQuad(c[0], c[1], c[2], c[3], c[4], c[5]); | 
 |             break; | 
 |         case 8: | 
 |             drawCubic(c[0], c[1], c[2], c[3], c[4], c[5], c[6], c[7]); | 
 |             break; | 
 |     } | 
 | } | 
 |  | 
 | function boundsWidth(pts) { | 
 |     var min = pts[0]; | 
 |     var max = pts[0]; | 
 |     for (var idx = 2; idx < pts.length; idx += 2) { | 
 |         min = Math.min(min, pts[idx]); | 
 |         max = Math.max(max, pts[idx]); | 
 |     } | 
 |     return max - min; | 
 | } | 
 |  | 
 | function boundsHeight(pts) { | 
 |     var min = pts[1]; | 
 |     var max = pts[1]; | 
 |     for (var idx = 3; idx < pts.length; idx += 2) { | 
 |         min = Math.min(min, pts[idx]); | 
 |         max = Math.max(max, pts[idx]); | 
 |     } | 
 |     return max - min; | 
 | } | 
 |  | 
 | function tangent(pts) { | 
 |     var dx = pts[2] - pts[0]; | 
 |     var dy = pts[3] - pts[1]; | 
 |     if (dx == 0 && dy == 0 && pts.length > 4) { | 
 |         dx = pts[4] - pts[0]; | 
 |         dy = pts[5] - pts[1]; | 
 |         if (dx == 0 && dy == 0 && pts.length > 6) { | 
 |             dx = pts[6] - pts[0]; | 
 |             dy = pts[7] - pts[1]; | 
 |         } | 
 |     } | 
 |     return Math.atan2(-dy, dx); | 
 | } | 
 |  | 
 | function hodograph(cubic) { | 
 |     var hodo = []; | 
 |     hodo[0] = 3 * (cubic[2] - cubic[0]); | 
 |     hodo[1] = 3 * (cubic[3] - cubic[1]); | 
 |     hodo[2] = 3 * (cubic[4] - cubic[2]); | 
 |     hodo[3] = 3 * (cubic[5] - cubic[3]); | 
 |     hodo[4] = 3 * (cubic[6] - cubic[4]); | 
 |     hodo[5] = 3 * (cubic[7] - cubic[5]); | 
 |     return hodo; | 
 | } | 
 |  | 
 | function hodograph2(cubic) { | 
 |     var quad = hodograph(cubic); | 
 |     var hodo = []; | 
 |     hodo[0] = 2 * (quad[2] - quad[0]); | 
 |     hodo[1] = 2 * (quad[3] - quad[1]); | 
 |     hodo[2] = 2 * (quad[4] - quad[2]); | 
 |     hodo[3] = 2 * (quad[5] - quad[3]); | 
 |     return hodo; | 
 | } | 
 |  | 
 | function quadraticRootsReal(A, B, C, s) { | 
 |     if (A == 0) { | 
 |         if (B == 0) { | 
 |             s[0] = 0; | 
 |             return C == 0; | 
 |         } | 
 |         s[0] = -C / B; | 
 |         return 1; | 
 |     } | 
 |     /* normal form: x^2 + px + q = 0 */ | 
 |     var p = B / (2 * A); | 
 |     var q = C / A; | 
 |     var p2 = p * p; | 
 |     if (p2 < q) { | 
 |         return 0; | 
 |     } | 
 |     var sqrt_D = 0; | 
 |     if (p2 > q) { | 
 |         sqrt_D = sqrt(p2 - q); | 
 |     } | 
 |     s[0] = sqrt_D - p; | 
 |     s[1] = -sqrt_D - p; | 
 |     return 1 + s[0] != s[1]; | 
 | } | 
 |  | 
 | function add_valid_ts(s, realRoots, t) { | 
 |     var foundRoots = 0; | 
 |     for (var index = 0; index < realRoots; ++index) { | 
 |         var tValue = s[index]; | 
 |         if (tValue >= 0 && tValue <= 1) { | 
 |             for (var idx2 = 0; idx2 < foundRoots; ++idx2) { | 
 |                 if (t[idx2] != tValue) { | 
 |                     t[foundRoots++] = tValue; | 
 |                 } | 
 |             } | 
 |         } | 
 |     } | 
 |     return foundRoots; | 
 | } | 
 |  | 
 | function quadraticRootsValidT(a, b, c, t) { | 
 |     var s = []; | 
 |     var realRoots = quadraticRootsReal(A, B, C, s); | 
 |     var foundRoots = add_valid_ts(s, realRoots, t); | 
 |     return foundRoots != 0; | 
 | } | 
 |  | 
 | function find_cubic_inflections(cubic, tValues) { | 
 |     var Ax = src[2] - src[0]; | 
 |     var Ay = src[3] - src[1]; | 
 |     var Bx = src[4] - 2 * src[2] + src[0]; | 
 |     var By = src[5] - 2 * src[3] + src[1]; | 
 |     var Cx = src[6] + 3 * (src[2] - src[4]) - src[0]; | 
 |     var Cy = src[7] + 3 * (src[3] - src[5]) - src[1]; | 
 |     return quadraticRootsValidT(Bx * Cy - By * Cx, (Ax * Cy - Ay * Cx), | 
 |             Ax * By - Ay * Bx, tValues); | 
 | } | 
 |  | 
 | function dxy_at_t(curve, type, t) { | 
 |     var dxy = {}; | 
 |     if (type == PATH_QUAD) { | 
 |         var a = t - 1; | 
 |         var b = 1 - 2 * t; | 
 |         var c = t; | 
 |         dxy.x = a * curve[0] + b * curve[2] + c * curve[4]; | 
 |         dxy.y = a * curve[1] + b * curve[3] + c * curve[5]; | 
 |     } else if (type == PATH_CUBIC) { | 
 |         var one_t = 1 - t; | 
 |         var a = curve[0]; | 
 |         var b = curve[2]; | 
 |         var c = curve[4]; | 
 |         var d = curve[6]; | 
 |         dxy.x = 3 * ((b - a) * one_t * one_t + 2 * (c - b) * t * one_t + (d - c) * t * t); | 
 |         a = curve[1]; | 
 |         b = curve[3]; | 
 |         c = curve[5]; | 
 |         d = curve[7]; | 
 |         dxy.y = 3 * ((b - a) * one_t * one_t + 2 * (c - b) * t * one_t + (d - c) * t * t); | 
 |     } | 
 |     return dxy; | 
 | } | 
 |  | 
 | function drawLabel(num, px, py) { | 
 |     ctx.beginPath(); | 
 |     ctx.arc(px, py, 8, 0, Math.PI*2, true); | 
 |     ctx.closePath(); | 
 |     ctx.strokeStyle = "rgba(0,0,0, 0.4)"; | 
 |     ctx.lineWidth = num == 0 || num == 3 ? 2 : 1; | 
 |     ctx.stroke(); | 
 |     ctx.fillStyle = "black"; | 
 |     ctx.font = "normal 10px Arial"; | 
 |   //  ctx.rotate(0.001); | 
 |     ctx.fillText(num, px - 2, py + 3); | 
 |   //  ctx.rotate(-0.001); | 
 | } | 
 |  | 
 | function drawLabelX(ymin, num, loc) { | 
 |     var px = (loc - srcLeft) * scale; | 
 |     var py = (ymin - srcTop) * scale - 20; | 
 |     drawLabel(num, px, py); | 
 | } | 
 |  | 
 | function drawLabelY(xmin, num, loc) { | 
 |     var px = (xmin - srcLeft) * scale - 20; | 
 |     var py = (loc - srcTop) * scale; | 
 |     drawLabel(num, px, py); | 
 | } | 
 |  | 
 | function drawHodoOrigin(hx, hy, hMinX, hMinY, hMaxX, hMaxY) { | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo(hx, hy - 100); | 
 |     ctx.lineTo(hx, hy); | 
 |     ctx.strokeStyle = hMinY < 0 ? "green" : "blue"; | 
 |     ctx.stroke(); | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo(hx, hy); | 
 |     ctx.lineTo(hx, hy + 100); | 
 |     ctx.strokeStyle = hMaxY > 0 ? "green" : "blue"; | 
 |     ctx.stroke(); | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo(hx - 100, hy); | 
 |     ctx.lineTo(hx, hy); | 
 |     ctx.strokeStyle = hMinX < 0 ? "green" : "blue"; | 
 |     ctx.stroke(); | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo(hx, hy); | 
 |     ctx.lineTo(hx + 100, hy); | 
 |     ctx.strokeStyle = hMaxX > 0 ? "green" : "blue"; | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function scalexy(x, y, mag) { | 
 |     var length = Math.sqrt(x * x + y * y); | 
 |     return mag / length; | 
 | } | 
 |  | 
 | function drawArrow(x, y, dx, dy) { | 
 |     var dscale = scalexy(dx, dy, 1 / scale * 100); | 
 |     dx *= dscale; | 
 |     dy *= dscale; | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo((x - srcLeft) * scale, (y - srcTop) * scale); | 
 |     x += dx; | 
 |     y += dy; | 
 |     ctx.lineTo((x - srcLeft) * scale, (y - srcTop) * scale); | 
 |     dx /= 10; | 
 |     dy /= 10; | 
 |     ctx.lineTo((x - dy - srcLeft) * scale, (y + dx - srcTop) * scale); | 
 |     ctx.lineTo((x + dx * 2 - srcLeft) * scale, (y + dy * 2 - srcTop) * scale); | 
 |     ctx.lineTo((x + dy - srcLeft) * scale, (y - dx - srcTop) * scale); | 
 |     ctx.lineTo((x - srcLeft) * scale, (y - srcTop) * scale); | 
 |     ctx.strokeStyle = "rgba(0,75,0, 0.4)"; | 
 |     ctx.stroke(); | 
 | } | 
 |  | 
 | function x_at_t(curve, t) { | 
 |     var one_t = 1 - t; | 
 |     if (curve.length == 4) { | 
 |         return one_t * curve[0] + t * curve[2]; | 
 |     } | 
 |     var one_t2 = one_t * one_t; | 
 |     var t2 = t * t; | 
 |     if (curve.length == 6) { | 
 |         return one_t2 * curve[0] + 2 * one_t * t * curve[2] + t2 * curve[4]; | 
 |     } | 
 |     var a = one_t2 * one_t; | 
 |     var b = 3 * one_t2 * t; | 
 |     var c = 3 * one_t * t2; | 
 |     var d = t2 * t; | 
 |     return a * curve[0] + b * curve[2] + c * curve[4] + d * curve[6]; | 
 | } | 
 |  | 
 | function y_at_t(curve, t) { | 
 |     var one_t = 1 - t; | 
 |     if (curve.length == 4) { | 
 |         return one_t * curve[1] + t * curve[3]; | 
 |     } | 
 |     var one_t2 = one_t * one_t; | 
 |     var t2 = t * t; | 
 |     if (curve.length == 6) { | 
 |         return one_t2 * curve[1] + 2 * one_t * t * curve[3] + t2 * curve[5]; | 
 |     } | 
 |     var a = one_t2 * one_t; | 
 |     var b = 3 * one_t2 * t; | 
 |     var c = 3 * one_t * t2; | 
 |     var d = t2 * t; | 
 |     return a * curve[1] + b * curve[3] + c * curve[5] + d * curve[7]; | 
 | } | 
 |  | 
 | function drawOrder(curve, label) { | 
 |     var px = x_at_t(curve, 0.75); | 
 |     var py = y_at_t(curve, 0.75); | 
 |     var _px = (px - srcLeft) * scale; | 
 |     var _py = (py - srcTop) * scale; | 
 |     ctx.beginPath(); | 
 |     ctx.arc(_px, _py, 15, 0, Math.PI * 2, true); | 
 |     ctx.closePath(); | 
 |     ctx.fillStyle = "white"; | 
 |     ctx.fill(); | 
 |     if (label == 'L') { | 
 |         ctx.strokeStyle = "rgba(255,0,0, 1)"; | 
 |         ctx.fillStyle = "rgba(255,0,0, 1)"; | 
 |     } else { | 
 |         ctx.strokeStyle = "rgba(0,0,255, 1)"; | 
 |         ctx.fillStyle = "rgba(0,0,255, 1)"; | 
 |     } | 
 |     ctx.stroke(); | 
 |     ctx.font = "normal 16px Arial"; | 
 |     ctx.textAlign = "center"; | 
 |     ctx.fillText(label, _px, _py + 5); | 
 |     ctx.font = "normal 10px Arial"; | 
 | } | 
 |  | 
 | function drawID(curve, id) { | 
 |     var px = x_at_t(curve, 0.5); | 
 |     var py = y_at_t(curve, 0.5); | 
 |     var _px = (px - srcLeft) * scale; | 
 |     var _py = (py - srcTop) * scale; | 
 |     draw_id_at(id, _px, _py); | 
 | } | 
 |  | 
 | function draw_id_at(id, _px, _py) { | 
 |     ctx.beginPath(); | 
 |     ctx.arc(_px, _py, 15, 0, Math.PI * 2, true); | 
 |     ctx.closePath(); | 
 |     ctx.fillStyle = "white"; | 
 |     ctx.fill(); | 
 |     ctx.strokeStyle = "rgba(127,127,0, 1)"; | 
 |     ctx.fillStyle = "rgba(127,127,0, 1)"; | 
 |     ctx.stroke(); | 
 |     ctx.font = "normal 16px Arial"; | 
 |     ctx.textAlign = "center"; | 
 |     ctx.fillText(id, _px, _py + 5); | 
 |     ctx.font = "normal 10px Arial"; | 
 | } | 
 |  | 
 | function drawLinePartialID(id, x1, y1, x2, y2, t1, t2) { | 
 |     var curve = [x1, y1, x2, y2]; | 
 |     drawCurvePartialID(id, curve, t1, t2); | 
 | } | 
 |  | 
 | function drawQuadPartialID(id, x1, y1, x2, y2, x3, y3, t1, t2) { | 
 |     var curve = [x1, y1, x2, y2, x3, y3]; | 
 |     drawCurvePartialID(id, curve, t1, t2); | 
 | } | 
 |  | 
 | function drawCubicPartialID(id, x1, y1, x2, y2, x3, y3, x4, y4, t1, t2) { | 
 |     var curve = [x1, y1, x2, y2, x3, y3, x4, y4]; | 
 |     drawCurvePartialID(id, curve, t1, t2); | 
 | } | 
 |  | 
 | function  drawCurvePartialID(id, curve, t1, t2) { | 
 |     var px = x_at_t(curve, (t1 + t2) / 2); | 
 |     var py = y_at_t(curve, (t1 + t2) / 2); | 
 |     var _px = (px - srcLeft) * scale; | 
 |     var _py = (py - srcTop) * scale; | 
 |     draw_id_at(id, _px, _py); | 
 | } | 
 |  | 
 | function drawCurveSpecials(test, curve, type) { | 
 |     if (pt_labels) { | 
 |         drawPoints(curve, type, pt_labels == 2); | 
 |     } | 
 |     if (control_lines != 0) { | 
 |         drawControlLines(curve, type, control_lines); | 
 |     } | 
 |     if (curve_t) { | 
 |         drawPointAtT(curve, type); | 
 |     } | 
 |     if (draw_midpoint) { | 
 |         var mid = pointAtT(curve, type, 0.5); | 
 |         drawPoint(mid.x, mid.y, true); | 
 |     } | 
 |     if (draw_id) { | 
 |         var id = idByCurve(test, curve, type); | 
 |         if (id >= 0) { | 
 |             drawID(curve, id); | 
 |         } | 
 |     } | 
 |     if (type == PATH_LINE) { | 
 |         return; | 
 |     } | 
 |     if (draw_deriviatives > 0) { | 
 |         var d = dxy_at_t(curve, type, 0); | 
 |         drawArrow(curve[0], curve[1], d.x, d.y); | 
 |         if (draw_deriviatives == 2) { | 
 |             d = dxy_at_t(curve, type, 1); | 
 |             if (type == PATH_CUBIC) { | 
 |                 drawArrow(curve[6], curve[7], d.x, d.y); | 
 |             } else { | 
 |                 drawArrow(curve[4], curve[5], d.x, d.y); | 
 |             } | 
 |         } | 
 |         if (draw_midpoint) { | 
 |             var mid = pointAtT(curve, type, 0.5); | 
 |             d = dxy_at_t(curve, type, 0.5); | 
 |             drawArrow(mid.x, mid.y, d.x, d.y); | 
 |         } | 
 |     } | 
 |     if (type != PATH_CUBIC) { | 
 |         return; | 
 |     } | 
 |     if (draw_hodo == 1 || draw_hodo == 2) { | 
 |         var hodo = hodograph(curve); | 
 |         var hMinX = Math.min(0, hodo[0], hodo[2], hodo[4]); | 
 |         var hMinY = Math.min(0, hodo[1], hodo[3], hodo[5]); | 
 |         var hMaxX = Math.max(0, hodo[0], hodo[2], hodo[4]); | 
 |         var hMaxY = Math.max(0, hodo[1], hodo[3], hodo[5]); | 
 |         var hScaleX = hMaxX - hMinX > 0 ? screenWidth / (hMaxX - hMinX) : 1; | 
 |         var hScaleY = hMaxY - hMinY > 0 ? screenHeight / (hMaxY - hMinY) : 1; | 
 |         var hUnit = Math.min(hScaleX, hScaleY); | 
 |         hUnit /= 2; | 
 |         var hx = xoffset - hMinX * hUnit; | 
 |         var hy = yoffset - hMinY * hUnit; | 
 |         ctx.moveTo(hx + hodo[0] * hUnit, hy + hodo[1] * hUnit); | 
 |         ctx.quadraticCurveTo( | 
 |             hx + hodo[2] * hUnit, hy + hodo[3] * hUnit, | 
 |             hx + hodo[4] * hUnit, hy + hodo[5] * hUnit); | 
 |         ctx.strokeStyle = "red"; | 
 |         ctx.stroke(); | 
 |         if (draw_hodo == 1) { | 
 |             drawHodoOrigin(hx, hy, hMinX, hMinY, hMaxX, hMaxY); | 
 |         } | 
 |     } | 
 |     if (draw_hodo == 3) { | 
 |         var hodo = hodograph2(curve); | 
 |         var hMinX = Math.min(0, hodo[0], hodo[2]); | 
 |         var hMinY = Math.min(0, hodo[1], hodo[3]); | 
 |         var hMaxX = Math.max(0, hodo[0], hodo[2]); | 
 |         var hMaxY = Math.max(0, hodo[1], hodo[3]); | 
 |         var hScaleX = hMaxX - hMinX > 0 ? screenWidth / (hMaxX - hMinX) : 1; | 
 |         var hScaleY = hMaxY - hMinY > 0 ? screenHeight / (hMaxY - hMinY) : 1; | 
 |         var hUnit = Math.min(hScaleX, hScaleY); | 
 |         hUnit /= 2; | 
 |         var hx = xoffset - hMinX * hUnit; | 
 |         var hy = yoffset - hMinY * hUnit; | 
 |         ctx.moveTo(hx + hodo[0] * hUnit, hy + hodo[1] * hUnit); | 
 |         ctx.lineTo(hx + hodo[2] * hUnit, hy + hodo[3] * hUnit); | 
 |         ctx.strokeStyle = "red"; | 
 |         ctx.stroke(); | 
 |         drawHodoOrigin(hx, hy, hMinX, hMinY, hMaxX, hMaxY); | 
 |     } | 
 |     if (draw_sequence) { | 
 |         var ymin = Math.min(curve[1], curve[3], curve[5], curve[7]); | 
 |         for (var i = 0; i < 8; i+= 2) { | 
 |             drawLabelX(ymin, i >> 1, curve[i]); | 
 |         } | 
 |         var xmin = Math.min(curve[0], curve[2], curve[4], curve[6]); | 
 |         for (var i = 1; i < 8; i+= 2) { | 
 |             drawLabelY(xmin, i >> 1, curve[i]); | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | function logCurves(test) { | 
 |     for (curves in test) { | 
 |         var curve = test[curves]; | 
 |         dumpCurve(curve); | 
 |     } | 
 | } | 
 |  | 
 | function curveToString(curve) { | 
 |     var str = "{{"; | 
 |     for (i = 0; i < curve.length; i += 2) { | 
 |         str += curve[i].toFixed(decimal_places) + "," + curve[i + 1].toFixed(decimal_places); | 
 |         if (i < curve.length - 2) { | 
 |             str += "}, {"; | 
 |         } | 
 |     } | 
 |     str += "}}"; | 
 |     return str; | 
 | } | 
 |  | 
 | function dumpCurve(curve) { | 
 |     console.log(curveToString(curve)); | 
 | } | 
 |  | 
 | function draw(test, lines, title) { | 
 |     ctx.fillStyle = "rgba(0,0,0, 0.1)"; | 
 |     ctx.font = "normal 50px Arial"; | 
 |     ctx.textAlign = "left"; | 
 |     ctx.fillText(title, 50, 50); | 
 |     ctx.font = "normal 10px Arial"; | 
 |     ctx.lineWidth = "1.001"; "0.999"; | 
 |     var secondPath = test.length; | 
 |     var closeCount = 0; | 
 |     logStart = -1; | 
 |     logRange = 0; | 
 |     // find last active rec type at this step | 
 |     var curType = test[0]; | 
 |     var curStep = 0; | 
 |     var hasOp = false; | 
 |     var lastActive = 0; | 
 |     var lastAdd = 0; | 
 |     var lastSect = 0; | 
 |     var lastSort = 0; | 
 |     var lastMark = 0; | 
 |     activeCount = 0; | 
 |     addCount = 0; | 
 |     angleCount = 0; | 
 |     opCount = 0; | 
 |     sectCount = 0; | 
 |     sortCount = 0; | 
 |     markCount = 0; | 
 |     activeMax = 0; | 
 |     addMax = 0; | 
 |     angleMax = 0; | 
 |     opMax = 0; | 
 |     sectMax = 0; | 
 |     sectMax2 = 0; | 
 |     sortMax = 0; | 
 |     markMax = 0; | 
 |     lastIndex = test.length - 3; | 
 |     for (var tIndex = 0; tIndex < test.length; tIndex += 3) { | 
 |         var recType = test[tIndex]; | 
 |         if (!typeof recType == 'number' || recType < REC_TYPE_UNKNOWN || recType > REC_TYPE_LAST) { | 
 |             console.log("unknown rec type: " + recType); | 
 |             throw "stop execution"; | 
 |         } | 
 |    //     if (curType == recType && curType != REC_TYPE_ADD) { | 
 |    //         continue; | 
 |    //     } | 
 |         var inStepRange = step_limit == 0 || curStep < step_limit; | 
 |         curType = recType; | 
 |         if (recType == REC_TYPE_OP) { | 
 |             hasOp = true; | 
 |             continue; | 
 |         } | 
 |         if (recType == REC_TYPE_UNKNOWN) { | 
 |             // these types do not advance step | 
 |             continue; | 
 |         } | 
 |         var bumpStep = false; | 
 |         var records = test[tIndex + 2]; | 
 |         var fragType = records[0]; | 
 |         if (recType == REC_TYPE_ADD) { | 
 |             if (records.length != 2) { | 
 |                 console.log("expect only two elements: " + records.length); | 
 |                 throw "stop execution"; | 
 |             } | 
 |             if (fragType == ADD_MOVETO || fragType == ADD_CLOSE) { | 
 |                 continue; | 
 |             } | 
 |             ++addMax; | 
 |             if (!draw_add || !inStepRange) { | 
 |                 continue; | 
 |             } | 
 |             lastAdd = tIndex; | 
 |             ++addCount; | 
 |             bumpStep = true; | 
 |         } | 
 |         if (recType == REC_TYPE_PATH && hasOp) { | 
 |             secondPath = tIndex; | 
 |         } | 
 |         if (recType == REC_TYPE_ACTIVE) { | 
 |             ++activeMax; | 
 |             if (!draw_active || !inStepRange) { | 
 |                 continue; | 
 |             } | 
 |             lastActive = tIndex; | 
 |             ++activeCount; | 
 |             bumpStep = true; | 
 |         } | 
 |         if (recType == REC_TYPE_ACTIVE_OP) { | 
 |             ++opMax; | 
 |             if (!draw_op || !inStepRange) { | 
 |                 continue; | 
 |             } | 
 |             lastOp = tIndex; | 
 |             ++opCount; | 
 |             bumpStep = true; | 
 |         } | 
 |         if (recType == REC_TYPE_ANGLE) { | 
 |             ++angleMax; | 
 |             if (!draw_angle || !inStepRange) { | 
 |                 continue; | 
 |             } | 
 |             lastAngle = tIndex; | 
 |             ++angleCount; | 
 |             bumpStep = true; | 
 |         } | 
 |         if (recType == REC_TYPE_SECT) { | 
 |             if (records.length != 2) { | 
 |                 console.log("expect only two elements: " + records.length); | 
 |                 throw "stop execution"; | 
 |             } | 
 |             ++sectMax; | 
 |             var sectBump = 1; | 
 |             switch (fragType) { | 
 |                 case INTERSECT_LINE: | 
 |                 case INTERSECT_QUAD_LINE: | 
 |                 case INTERSECT_QUAD: | 
 |                 case INTERSECT_SELF_CUBIC: | 
 |                 case INTERSECT_CUBIC_LINE: | 
 |                 case INTERSECT_CUBIC_QUAD: | 
 |                 case INTERSECT_CUBIC: | 
 |                     sectBump = 1; | 
 |                     break; | 
 |                 case INTERSECT_LINE_2: | 
 |                 case INTERSECT_QUAD_LINE_2: | 
 |                 case INTERSECT_QUAD_2: | 
 |                 case INTERSECT_CUBIC_LINE_2: | 
 |                 case INTERSECT_CUBIC_QUAD_2: | 
 |                 case INTERSECT_CUBIC_2: | 
 |                     sectBump = 2; | 
 |                     break; | 
 |                 case INTERSECT_LINE_NO: | 
 |                 case INTERSECT_QUAD_LINE_NO: | 
 |                 case INTERSECT_QUAD_NO: | 
 |                 case INTERSECT_SELF_CUBIC_NO: | 
 |                 case INTERSECT_CUBIC_LINE_NO: | 
 |                 case INTERSECT_CUBIC_QUAD_NO: | 
 |                 case INTERSECT_CUBIC_NO: | 
 |                     sectBump = 0; | 
 |                     break; | 
 |                 case INTERSECT_CUBIC_LINE_3: | 
 |                 case INTERSECT_CUBIC_QUAD_3: | 
 |                 case INTERSECT_CUBIC_3: | 
 |                     sectBump = 3; | 
 |                     break; | 
 |                 case INTERSECT_CUBIC_QUAD_4: | 
 |                 case INTERSECT_CUBIC_4: | 
 |                     sectBump = 4; | 
 |                     break; | 
 |                 default: | 
 |                     console.log("missing case " + records.length); | 
 |                     throw "stop execution"; | 
 |             } | 
 |             sectMax2 += sectBump; | 
 |             if (draw_intersection <= 1 || !inStepRange) { | 
 |                 continue; | 
 |             } | 
 |             lastSect = tIndex; | 
 |             sectCount += sectBump; | 
 |             bumpStep = true; | 
 |         } | 
 |         if (recType == REC_TYPE_SORT) { | 
 |             ++sortMax; | 
 |             if (!draw_sort || !inStepRange) { | 
 |                 continue; | 
 |             } | 
 |             lastSort = tIndex; | 
 |             ++sortCount; | 
 |             bumpStep = true; | 
 |         } | 
 |         if (recType == REC_TYPE_MARK) { | 
 |             ++markMax; | 
 |             if (!draw_mark || !inStepRange) { | 
 |                 continue; | 
 |             } | 
 |             lastMark = tIndex; | 
 |             ++markCount; | 
 |             bumpStep = true; | 
 |         } | 
 |         if (bumpStep) { | 
 |             lastIndex = tIndex; | 
 |             logStart = test[tIndex + 1]; | 
 |             logRange = records.length / 2; | 
 |             ++curStep; | 
 |         } | 
 |     } | 
 |     stepMax = (draw_add ? addMax : 0) | 
 |             + (draw_active ? activeMax : 0) | 
 |             + (draw_op ? opMax : 0) | 
 |             + (draw_angle ? angleMax : 0) | 
 |             + (draw_sort ? sortMax : 0) | 
 |             + (draw_mark ? markMax : 0) | 
 |             + (draw_intersection == 2 ? sectMax : draw_intersection == 3 ? sectMax2 : 0); | 
 |     if (stepMax == 0) { | 
 |         stepMax = addMax + activeMax + angleMax + opMax + sortMax + markMax; | 
 |     } | 
 |     drawnPts = []; | 
 |     drawnLines = []; | 
 |     drawnQuads = []; | 
 |     drawnCubics = []; | 
 |     focusXmin = focusYmin = Infinity; | 
 |     focusXmax = focusYmax = -Infinity; | 
 |     var pathIndex = 0; | 
 |     var opLetter = 'S'; | 
 |     for (var tIndex = lastIndex; tIndex >= 0; tIndex -= 3) { | 
 |         var recType = test[tIndex]; | 
 |         var records = test[tIndex + 2]; | 
 |         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |             var fragType = records[recordIndex]; | 
 |             if (!typeof fragType == 'number' || fragType < 1 || fragType > FRAG_TYPE_LAST) { | 
 |                 console.log("unknown in range frag type: " + fragType); | 
 |                 throw "stop execution"; | 
 |             } | 
 |             var frags = records[recordIndex + 1]; | 
 |             focus_enabled = false; | 
 |             switch (recType) { | 
 |                 case REC_TYPE_COMPUTED: | 
 |                     if (draw_computed == 0) { | 
 |                         continue; | 
 |                     } | 
 |                     ctx.lineWidth = 1; | 
 |                     ctx.strokeStyle = pathIndex == 0 ? "black" : "red"; | 
 |                     ctx.fillStyle = "blue"; | 
 |                     var drawThis = false; | 
 |                     switch (fragType) { | 
 |                         case PATH_QUAD: | 
 |                             if ((draw_computed & 5) == 1 || ((draw_computed & 4) != 0 | 
 |                                     && (draw_computed & 1) == pathIndex)) { | 
 |                                 drawQuad(frags[0], frags[1], frags[2], frags[3], | 
 |                                         frags[4], frags[5]); | 
 |                                 drawThis = true; | 
 |                             } | 
 |                             break; | 
 |                         case PATH_CUBIC: | 
 |                             if ((draw_computed & 6) == 2 || ((draw_computed & 4) != 0 | 
 |                                      && (draw_computed & 1) != pathIndex)) { | 
 |                                 drawCubic(frags[0], frags[1], frags[2], frags[3], | 
 |                                         frags[4], frags[5], frags[6], frags[7]); | 
 |                                 drawThis = true; | 
 |                             } | 
 |                             ++pathIndex; | 
 |                             break; | 
 |                         case COMPUTED_SET_1: | 
 |                             pathIndex = 0; | 
 |                             break; | 
 |                         case COMPUTED_SET_2: | 
 |                             pathIndex = 1; | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_COMPUTED frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     if (!drawThis || collect_bounds) { | 
 |                         break; | 
 |                     } | 
 |                     drawCurveSpecials(test, frags, fragType); | 
 |                     break; | 
 |                 case REC_TYPE_PATH: | 
 |                     if (!draw_path) { | 
 |                         continue; | 
 |                     } | 
 |                     var firstPath = tIndex < secondPath; | 
 |                     if ((draw_path & (firstPath ? 1 : 2)) == 0) { | 
 |                         continue; | 
 |                     } | 
 |                     ctx.lineWidth = 1; | 
 |                     ctx.strokeStyle = firstPath ? "black" : "red"; | 
 |                     ctx.fillStyle = "blue"; | 
 |                     switch (fragType) { | 
 |                         case PATH_LINE: | 
 |                             drawLine(frags[0], frags[1], frags[2], frags[3]); | 
 |                             break; | 
 |                         case PATH_QUAD: | 
 |                             drawQuad(frags[0], frags[1], frags[2], frags[3], | 
 |                                     frags[4], frags[5]); | 
 |                             break; | 
 |                         case PATH_CUBIC: | 
 |                             drawCubic(frags[0], frags[1], frags[2], frags[3], | 
 |                                     frags[4], frags[5], frags[6], frags[7]); | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_PATH frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     if (collect_bounds) { | 
 |                         break; | 
 |                     } | 
 |                     drawCurveSpecials(test, frags, fragType); | 
 |                     break; | 
 |                 case REC_TYPE_OP: | 
 |                     switch (fragType) { | 
 |                         case OP_INTERSECT: opLetter = 'I'; break; | 
 |                         case OP_DIFFERENCE: opLetter = 'D'; break; | 
 |                         case OP_UNION: opLetter = 'U'; break; | 
 |                         case OP_XOR: opLetter = 'X'; break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_OP frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_ACTIVE: | 
 |                     if (!draw_active || (step_limit > 0 && tIndex < lastActive)) { | 
 |                         continue; | 
 |                     } | 
 |                     var x1 = frags[SPAN_X1]; | 
 |                     var y1 = frags[SPAN_Y1]; | 
 |                     var x2 = frags[SPAN_X2]; | 
 |                     var y2 = frags[SPAN_Y2]; | 
 |                     var x3, y3, x3, y4, t1, t2; | 
 |                     ctx.lineWidth = 3; | 
 |                     ctx.strokeStyle = "rgba(0,0,255, 0.3)"; | 
 |                     focus_enabled = true; | 
 |                     switch (fragType) { | 
 |                         case ACTIVE_LINE_SPAN: | 
 |                             t1 = frags[SPAN_L_T]; | 
 |                             t2 = frags[SPAN_L_TEND]; | 
 |                             drawLinePartial(x1, y1, x2, y2, t1, t2); | 
 |                             if (draw_id) { | 
 |                                 drawLinePartialID(frags[0], x1, y1, x2, y2, t1, t2); | 
 |                             } | 
 |                              break; | 
 |                         case ACTIVE_QUAD_SPAN: | 
 |                             x3 = frags[SPAN_X3]; | 
 |                             y3 = frags[SPAN_Y3]; | 
 |                             t1 = frags[SPAN_Q_T]; | 
 |                             t2 = frags[SPAN_Q_TEND]; | 
 |                             drawQuadPartial(x1, y1, x2, y2, x3, y3, t1, t2); | 
 |                             if (draw_id) { | 
 |                                 drawQuadPartialID(frags[0], x1, y1, x2, y2, x3, y3, t1, t2); | 
 |                             } | 
 |                             break; | 
 |                         case ACTIVE_CUBIC_SPAN: | 
 |                             x3 = frags[SPAN_X3]; | 
 |                             y3 = frags[SPAN_Y3]; | 
 |                             x4 = frags[SPAN_X4]; | 
 |                             y4 = frags[SPAN_Y4]; | 
 |                             t1 = frags[SPAN_C_T]; | 
 |                             t2 = frags[SPAN_C_TEND]; | 
 |                             drawCubicPartial(x1, y1, x2, y2, x3, y3, x4, y4, t1, t2); | 
 |                             if (draw_id) { | 
 |                                 drawCubicPartialID(frags[0], x1, y1, x2, y2, x3, y3, x4, y4, t1, t2); | 
 |                             } | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_ACTIVE frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_ACTIVE_OP: | 
 |                     if (!draw_op || (step_limit > 0 && tIndex < lastOp)) { | 
 |                         continue; | 
 |                     } | 
 |                     focus_enabled = true; | 
 |                     ctx.lineWidth = 3; | 
 |                     var activeSpan = frags[7] == "1"; | 
 |                     ctx.strokeStyle = activeSpan ? "rgba(45,160,0, 0.3)" : "rgba(255,45,0, 0.5)"; | 
 |                     var curve = curvePartialByID(test, frags[0], frags[1], frags[2]); | 
 |                     drawCurve(curve); | 
 |                     if (draw_op > 1) { | 
 |                         drawArc(curve, false, frags[3], frags[4]); | 
 |                         drawArc(curve, true, frags[5], frags[6]); | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_ADD: | 
 |                     if (!draw_add) { | 
 |                         continue; | 
 |                     } | 
 |                     ctx.lineWidth = 3; | 
 |                     ctx.strokeStyle = closeCount == 0 ? "rgba(0,0,255, 0.3)" | 
 |                             : closeCount == 1 ? "rgba(0,127,0, 0.3)" | 
 |                             : closeCount == 2 ? "rgba(0,127,127, 0.3)" | 
 |                             : closeCount == 3 ? "rgba(127,127,0, 0.3)" | 
 |                             : "rgba(127,0,127, 0.3)"; | 
 |                     focus_enabled = true; | 
 |                     switch (fragType) { | 
 |                         case ADD_MOVETO: | 
 |                             break; | 
 |                         case ADD_LINETO: | 
 |                             if (step_limit == 0 || tIndex >= lastAdd) { | 
 |                                 drawLine(frags[0], frags[1], frags[2], frags[3]); | 
 |                             } | 
 |                             break; | 
 |                         case ADD_QUADTO: | 
 |                             if (step_limit == 0 || tIndex >= lastAdd) { | 
 |                                 drawQuad(frags[0], frags[1], frags[2], frags[3], frags[4], frags[5]); | 
 |                             } | 
 |                             break; | 
 |                         case ADD_CUBICTO: | 
 |                             if (step_limit == 0 || tIndex >= lastAdd) { | 
 |                                 drawCubic(frags[0], frags[1], frags[2], frags[3], | 
 |                                         frags[4], frags[5], frags[6], frags[7]); | 
 |                             } | 
 |                             break; | 
 |                         case ADD_CLOSE: | 
 |                             ++closeCount; | 
 |                             break; | 
 |                         case ADD_FILL: | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_ADD frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_ANGLE: | 
 |                     if (!draw_angle || (step_limit > 0 && tIndex < lastAngle)) { | 
 |                         continue; | 
 |                     } | 
 |                     if (fragType != ANGLE_AFTER && fragType != ANGLE_AFTER2) { | 
 |                         continue; | 
 |                     } | 
 |                     focus_enabled = true; | 
 |                     ctx.lineWidth = 3; | 
 |                     ctx.strokeStyle = "rgba(127,45,127, 0.3)"; | 
 |                     var leftCurve, midCurve, rightCurve; | 
 |                     if (fragType == ANGLE_AFTER) { | 
 |                         leftCurve = curvePartialByID(test, frags[0], frags[3], frags[4]); | 
 |                         midCurve = curvePartialByID(test, frags[5], frags[8], frags[9]); | 
 |                         rightCurve = curvePartialByID(test, frags[10], frags[13], frags[14]); | 
 |                     } else { | 
 |                         leftCurve = curvePartialByID(test, frags[0], frags[4], frags[5]); | 
 |                         midCurve = curvePartialByID(test, frags[6], frags[10], frags[11]); | 
 |                         rightCurve = curvePartialByID(test, frags[12], frags[16], frags[17]); | 
 |                     } | 
 |                     drawCurve(leftCurve); | 
 |                     drawCurve(rightCurve); | 
 |                     var inBetween = frags[fragType == ANGLE_AFTER ? 15 : 18] == "T"; | 
 |                     ctx.strokeStyle = inBetween ? "rgba(0,160,45, 0.3)" : "rgba(255,0,45, 0.5)"; | 
 |                     drawCurve(midCurve); | 
 |                     if (draw_angle > 1) { | 
 |                         drawOrder(leftCurve, 'L'); | 
 |                         drawOrder(rightCurve, 'R'); | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_SECT: | 
 |                     if (!draw_intersection) { | 
 |                         continue; | 
 |                     } | 
 |                     if (draw_intersection != 1 && (step_limit > 0 && tIndex < lastSect)) { | 
 |                         continue; | 
 |                     } | 
 |                     // draw_intersection == 1 : show all | 
 |                     // draw_intersection == 2 : step == 0 ? show all : show intersection line #step | 
 |                     // draw_intersection == 3 : step == 0 ? show all : show intersection #step | 
 |                     ctx.lineWidth = 1; | 
 |                     ctx.strokeStyle = "rgba(0,0,255, 0.3)"; | 
 |                     ctx.fillStyle = "blue"; | 
 |                     focus_enabled = true; | 
 |                     var f = []; | 
 |                     var c1s; | 
 |                     var c1l; | 
 |                     var c2s; | 
 |                     var c2l; | 
 |                     switch (fragType) { | 
 |                         case INTERSECT_LINE: | 
 |                             f.push(5, 6, 0, 7); | 
 |                             c1s = 1; c1l = 4; c2s = 8; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_LINE_2: | 
 |                             f.push(5, 6, 0, 10); | 
 |                             f.push(8, 9, 7, 15); | 
 |                             c1s = 1; c1l = 4; c2s = 11; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_LINE_NO: | 
 |                             c1s = 0; c1l = 4; c2s = 4; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_LINE: | 
 |                             f.push(7, 8, 0, 9); | 
 |                             c1s = 1; c1l = 6; c2s = 10; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_LINE_2: | 
 |                             f.push(7, 8, 0, 12); | 
 |                             f.push(10, 11, 9, 17); | 
 |                             c1s = 1; c1l = 6; c2s = 13; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_LINE_NO: | 
 |                             c1s = 0; c1l = 6; c2s = 6; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_QUAD: | 
 |                             f.push(7, 8, 0, 9); | 
 |                             c1s = 1; c1l = 6; c2s = 10; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_2: | 
 |                             f.push(7, 8, 0, 12); | 
 |                             f.push(10, 11, 9, 19); | 
 |                             c1s = 1; c1l = 6; c2s = 13; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_QUAD_NO: | 
 |                             c1s = 0; c1l = 6; c2s = 6; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_SELF_CUBIC: | 
 |                             f.push(9, 10, 0, 11); | 
 |                             c1s = 1; c1l = 8; c2s = 0; c2l = 0; | 
 |                             break; | 
 |                         case INTERSECT_SELF_CUBIC_NO: | 
 |                             c1s = 0; c1l = 8; c2s = 0; c2l = 0; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE: | 
 |                             f.push(9, 10, 0, 11); | 
 |                             c1s = 1; c1l = 8; c2s = 12; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE_2: | 
 |                             f.push(9, 10, 0, 14); | 
 |                             f.push(12, 13, 11, 19); | 
 |                             c1s = 1; c1l = 8; c2s = 15; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE_3: | 
 |                             f.push(9, 10, 0, 17); | 
 |                             f.push(12, 13, 11, 22); | 
 |                             f.push(15, 16, 14, 23); | 
 |                             c1s = 1; c1l = 8; c2s = 18; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_NO: | 
 |                             c1s = 0; c1l = 8; c2s = 8; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD: | 
 |                             f.push(9, 10, 0, 11); | 
 |                             c1s = 1; c1l = 8; c2s = 12; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_2: | 
 |                             f.push(9, 10, 0, 14); | 
 |                             f.push(12, 13, 11, 21); | 
 |                             c1s = 1; c1l = 8; c2s = 15; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_3: | 
 |                             f.push(9, 10, 0, 17); | 
 |                             f.push(12, 13, 11, 24); | 
 |                             f.push(15, 16, 14, 25); | 
 |                             c1s = 1; c1l = 8; c2s = 18; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_QUAD_4: | 
 |                             f.push(9, 10, 0, 20); | 
 |                             f.push(12, 13, 11, 27); | 
 |                             f.push(15, 16, 14, 28); | 
 |                             f.push(18, 19, 17, 29); | 
 |                             c1s = 1; c1l = 8; c2s = 21; c2l = 6; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_LINE_NO: | 
 |                             c1s = 0; c1l = 8; c2s = 8; c2l = 4; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC: | 
 |                             f.push(9, 10, 0, 11); | 
 |                             c1s = 1; c1l = 8; c2s = 12; c2l = 8; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_2: | 
 |                             f.push(9, 10, 0, 14); | 
 |                             f.push(12, 13, 11, 23); | 
 |                             c1s = 1; c1l = 8; c2s = 15; c2l = 8; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_3: | 
 |                             f.push(9, 10, 0, 17); | 
 |                             f.push(12, 13, 11, 26); | 
 |                             f.push(15, 16, 14, 27); | 
 |                             c1s = 1; c1l = 8; c2s = 18; c2l = 8; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_4: | 
 |                             f.push(9, 10, 0, 20); | 
 |                             f.push(12, 13, 11, 29); | 
 |                             f.push(15, 16, 14, 30); | 
 |                             f.push(18, 19, 17, 31); | 
 |                             c1s = 1; c1l = 8; c2s = 21; c2l = 8; | 
 |                             break; | 
 |                         case INTERSECT_CUBIC_NO: | 
 |                             c1s = 0; c1l = 8; c2s = 8; c2l = 8; | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_SECT frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     if (draw_intersection != 1) { | 
 |                         var id = -1; | 
 |                         var curve; | 
 |                         switch (c1l) { | 
 |                             case 4:  | 
 |                                 drawLine(frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3]); | 
 |                                 if (draw_id) { | 
 |                                     curve = [frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3]]; | 
 |                                     id = idByCurve(test, curve, PATH_LINE); | 
 |                                 } | 
 |                                 break; | 
 |                             case 6: | 
 |                                 drawQuad(frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3], | 
 |                                         frags[c1s + 4], frags[c1s + 5]); | 
 |                                 if (draw_id) { | 
 |                                     curve = [frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3], | 
 |                                             frags[c1s + 4], frags[c1s + 5]]; | 
 |                                     id = idByCurve(test, curve, PATH_QUAD); | 
 |                                 } | 
 |                                 break; | 
 |                             case 8: | 
 |                                 drawCubic(frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3], | 
 |                                         frags[c1s + 4], frags[c1s + 5], frags[c1s + 6], frags[c1s + 7]); | 
 |                                 if (draw_id) { | 
 |                                     curve = [frags[c1s], frags[c1s + 1], frags[c1s + 2], frags[c1s + 3], | 
 |                                             frags[c1s + 4], frags[c1s + 5], frags[c1s + 6], frags[c1s + 7]]; | 
 |                                     id = idByCurve(test, curve, PATH_CUBIC); | 
 |                                 } | 
 |                                 break; | 
 |                         } | 
 |                         if (id >= 0) { | 
 |                             drawID(curve, id); | 
 |                         } | 
 |                         id = -1; | 
 |                         switch (c2l) { | 
 |                             case 0: | 
 |                                 break; | 
 |                             case 4:  | 
 |                                 drawLine(frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3]); | 
 |                                 if (draw_id) { | 
 |                                     curve = [frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3]]; | 
 |                                     id = idByCurve(test, curve, PATH_LINE); | 
 |                                 } | 
 |                                 break; | 
 |                             case 6: | 
 |                                 drawQuad(frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3], | 
 |                                         frags[c2s + 4], frags[c2s + 5]); | 
 |                                 if (draw_id) { | 
 |                                     curve = [frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3], | 
 |                                             frags[c2s + 4], frags[c2s + 5]]; | 
 |                                     id = idByCurve(test, curve, PATH_QUAD); | 
 |                                 } | 
 |                                 break; | 
 |                             case 8: | 
 |                                 drawCubic(frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3], | 
 |                                         frags[c2s + 4], frags[c2s + 5], frags[c2s + 6], frags[c2s + 7]); | 
 |                                 if (draw_id) { | 
 |                                     curve = [frags[c2s], frags[c2s + 1], frags[c2s + 2], frags[c2s + 3], | 
 |                                             frags[c2s + 4], frags[c2s + 5], frags[c2s + 6], frags[c2s + 7]]; | 
 |                                     id = idByCurve(test, curve, PATH_CUBIC); | 
 |                                 } | 
 |                                 break; | 
 |                         } | 
 |                         if (id >= 0) { | 
 |                             drawID(curve, id); | 
 |                         } | 
 |                     } | 
 |                     if (collect_bounds) { | 
 |                         break; | 
 |                     } | 
 |                     for (var idx = 0; idx < f.length; idx += 4) { | 
 |                         if (draw_intersection != 3 || idx == lastSect - tIndex) { | 
 |                             drawPoint(frags[f[idx]], frags[f[idx + 1]], true); | 
 |                         } | 
 |                     } | 
 |                     if (!draw_intersectT) { | 
 |                         break; | 
 |                     } | 
 |                     ctx.fillStyle = "red"; | 
 |                     for (var idx = 0; idx < f.length; idx += 4) { | 
 |                         if (draw_intersection != 3 || idx == lastSect - tIndex) { | 
 |                             drawTAtPointUp(frags[f[idx]], frags[f[idx + 1]], frags[f[idx + 2]]); | 
 |                             drawTAtPointDown(frags[f[idx]], frags[f[idx + 1]], frags[f[idx + 3]]); | 
 |                         } | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_SORT: | 
 |                     if (!draw_sort || (step_limit > 0 && tIndex < lastSort)) { | 
 |                         continue; | 
 |                     } | 
 |                     ctx.lineWidth = 3; | 
 |                     ctx.strokeStyle = "rgba(127,127,0, 0.5)"; | 
 |                     focus_enabled = true; | 
 |                     switch (fragType) { | 
 |                         case SORT_UNARY: | 
 |                         case SORT_BINARY: | 
 |                             var curve = curvePartialByID(test, frags[0], frags[6], frags[8]); | 
 |                             drawCurve(curve); | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_SORT frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 case REC_TYPE_MARK: | 
 |                     if (!draw_mark || (step_limit > 0 && tIndex < lastMark)) { | 
 |                         continue; | 
 |                     } | 
 |                     ctx.lineWidth = 3; | 
 |                     ctx.strokeStyle = fragType >= MARK_DONE_LINE ? | 
 |                             "rgba(127,0,127, 0.5)" : "rgba(127,127,0, 0.5)"; | 
 |                     focus_enabled = true; | 
 |                     switch (fragType) { | 
 |                         case MARK_LINE: | 
 |                         case MARK_DONE_LINE: | 
 |                         case MARK_UNSORTABLE_LINE: | 
 |                         case MARK_SIMPLE_LINE: | 
 |                         case MARK_SIMPLE_DONE_LINE: | 
 |                         case MARK_DONE_UNARY_LINE: | 
 |                             drawLinePartial(frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[9]); | 
 |                             if (draw_id) { | 
 |                                 drawLinePartialID(frags[0], frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[9]); | 
 |                             } | 
 |                             break; | 
 |                         case MARK_QUAD: | 
 |                         case MARK_DONE_QUAD: | 
 |                         case MARK_UNSORTABLE_QUAD: | 
 |                         case MARK_SIMPLE_QUAD: | 
 |                         case MARK_SIMPLE_DONE_QUAD: | 
 |                         case MARK_DONE_UNARY_QUAD: | 
 |                             drawQuadPartial(frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6], frags[7], frags[11]); | 
 |                             if (draw_id) { | 
 |                                 drawQuadPartialID(frags[0], frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6], frags[7], frags[11]); | 
 |                             } | 
 |                             break; | 
 |                         case MARK_CUBIC: | 
 |                         case MARK_DONE_CUBIC: | 
 |                         case MARK_UNSORTABLE_CUBIC: | 
 |                         case MARK_SIMPLE_CUBIC: | 
 |                         case MARK_SIMPLE_DONE_CUBIC: | 
 |                         case MARK_DONE_UNARY_CUBIC: | 
 |                             drawCubicPartial(frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6], frags[7], frags[8], frags[9], frags[13]); | 
 |                             if (draw_id) { | 
 |                                 drawCubicPartialID(frags[0], frags[1], frags[2], frags[3], frags[4], | 
 |                                 frags[5], frags[6], frags[7], frags[8], frags[9], frags[13]); | 
 |                             } | 
 |                             break; | 
 |                         case MARK_ANGLE_LAST: | 
 |                             // FIXME: ignored for now | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_MARK frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     break; | 
 |                 default: | 
 |                     continue; | 
 |             } | 
 |         } | 
 |         switch (recType) { | 
 |             case REC_TYPE_SORT: | 
 |                 if (!draw_sort || (step_limit > 0 && tIndex < lastSort)) { | 
 |                     break; | 
 |                 } | 
 |                 var angles = []; // use tangent lines to describe arcs | 
 |                 var windFrom = []; | 
 |                 var windTo = []; | 
 |                 var opp = []; | 
 |                 var minXY = Number.MAX_VALUE; | 
 |                 var partial; | 
 |                 focus_enabled = true; | 
 |                 var someUnsortable = false; | 
 |                 for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |                     var fragType = records[recordIndex]; | 
 |                     var frags = records[recordIndex + 1]; | 
 |                     var unsortable = (fragType == SORT_UNARY && frags[14]) || | 
 |                             (fragType == SORT_BINARY && frags[16]); | 
 |                     someUnsortable |= unsortable; | 
 |                     switch (fragType) { | 
 |                         case SORT_UNARY: | 
 |                         case SORT_BINARY: | 
 |                             partial = curvePartialByID(test, frags[0], frags[6], frags[8]); | 
 |                             break; | 
 |                         default: | 
 |                             console.log("unknown REC_TYPE_SORT frag type: " + fragType); | 
 |                             throw "stop execution"; | 
 |                     } | 
 |                     var dx = boundsWidth(partial); | 
 |                     var dy = boundsHeight(partial); | 
 |                     minXY = Math.min(minXY, dx * dx + dy * dy); | 
 |                     if (collect_bounds) { | 
 |                         continue; | 
 |                     } | 
 |                     angles.push(tangent(partial)); | 
 |                     var from = frags[12]; | 
 |                     var to = frags[12]; | 
 |                     var sgn = frags[10]; | 
 |                     if (sgn < 0) { | 
 |                         from -= frags[11]; | 
 |                     } else if (sgn > 0) { | 
 |                         to -= frags[11]; | 
 |                     } | 
 |                     windFrom.push(from + (unsortable ? "!" : "")); | 
 |                     windTo.push(to + (unsortable ? "!" : "")); | 
 |                     opp.push(fragType == SORT_BINARY); | 
 |                     if (draw_sort == 1) { | 
 |                         drawOrder(partial, frags[12]); | 
 |                     } else { | 
 |                         drawOrder(partial, (recordIndex / 2) + 1); | 
 |                     } | 
 |                 } | 
 |                 var radius = Math.sqrt(minXY) / 2 * scale; | 
 |                 radius = Math.min(50, radius); | 
 |                 var scaledRadius = radius / scale; | 
 |                 var centerX = partial[0]; | 
 |                 var centerY = partial[1]; | 
 |                 if (collect_bounds) { | 
 |                     if (focus_enabled) { | 
 |                         focusXmin = Math.min(focusXmin, centerX - scaledRadius); | 
 |                         focusYmin = Math.min(focusYmin, centerY - scaledRadius); | 
 |                         focusXmax = Math.max(focusXmax, centerX + scaledRadius); | 
 |                         focusYmax = Math.max(focusYmax, centerY + scaledRadius); | 
 |                     } | 
 |                     break; | 
 |                 } | 
 |                 break; | 
 |             default: | 
 |                 break; | 
 |         } | 
 |     } | 
 |     if (collect_bounds) { | 
 |         return; | 
 |     } | 
 |     if (draw_log && logStart >= 0) { | 
 |         ctx.font = "normal 10px Arial"; | 
 |         ctx.textAlign = "left"; | 
 |         ctx.beginPath(); | 
 |         var top = screenHeight - 20 - (logRange + 2) * 10; | 
 |         ctx.rect(50, top, screenWidth - 100, (logRange + 2) * 10); | 
 |         ctx.fillStyle = "white"; | 
 |         ctx.fill(); | 
 |         ctx.fillStyle = "rgba(0,0,0, 0.5)"; | 
 |         if (logStart > 0) { | 
 |             ctx.fillText(lines[logStart - 1], 50, top + 8); | 
 |         } | 
 |         ctx.fillStyle = "black"; | 
 |         for (var idx = 0; idx < logRange; ++idx) { | 
 |             ctx.fillText(lines[logStart + idx], 50, top + 18 + 10 * idx); | 
 |         } | 
 |         ctx.fillStyle = "rgba(0,0,0, 0.5)"; | 
 |         if (logStart + logRange < lines.length) { | 
 |             ctx.fillText(lines[logStart + logRange], 50, top + 18 + 10 * logRange); | 
 |         } | 
 |     } | 
 |     if (draw_legend) { | 
 |         var pos = 0; | 
 |         var drawSomething = draw_add | draw_active | draw_sort | draw_mark; | 
 |    //     drawBox(pos++, "yellow", "black", opLetter, true, ''); | 
 |         drawBox(pos++, "rgba(0,0,255, 0.3)", "black", draw_intersection > 1 ? sectCount : sectMax2, draw_intersection, intersectionKey); | 
 |         drawBox(pos++, "rgba(0,0,255, 0.3)", "black", draw_add ? addCount : addMax, draw_add, addKey); | 
 |         drawBox(pos++, "rgba(0,0,255, 0.3)", "black", draw_active ? activeCount : activeMax, draw_active, activeKey); | 
 |         drawBox(pos++, "rgba(127,127,0, 0.3)", "black", draw_angle ? angleCount : angleMax, draw_angle, angleKey); | 
 |         drawBox(pos++, "rgba(127,127,0, 0.3)", "black", draw_op ? opCount : opMax, draw_op, opKey); | 
 |         drawBox(pos++, "rgba(127,127,0, 0.3)", "black", draw_sort ? sortCount : sortMax, draw_sort, sortKey); | 
 |         drawBox(pos++, "rgba(127,0,127, 0.3)", "black", draw_mark ? markCount : markMax, draw_mark, markKey); | 
 |         drawBox(pos++, "black", "white",  | 
 |                 (new Array('P', 'P1', 'P2', 'P'))[draw_path], draw_path != 0, pathKey); | 
 |         drawBox(pos++, "rgba(0,63,0, 0.7)", "white", | 
 |                 (new Array('Q', 'Q', 'C', 'QC', 'Qc', 'Cq'))[draw_computed], | 
 |                 draw_computed != 0, computedKey); | 
 |         drawBox(pos++, "green", "black", step_limit, drawSomething, ''); | 
 |         drawBox(pos++, "green", "black", stepMax, drawSomething, ''); | 
 |         drawBox(pos++, "rgba(255,0,0, 0.6)", "black", lastIndex, drawSomething & draw_log, ''); | 
 |         drawBox(pos++, "rgba(255,0,0, 0.6)", "black", test.length - 1, drawSomething & draw_log, ''); | 
 |         if (curve_t) { | 
 |             drawCurveTControl(); | 
 |         } | 
 |         ctx.font = "normal 20px Arial"; | 
 |         ctx.fillStyle = "rgba(0,0,0, 0.3)"; | 
 |         ctx.textAlign = "right"; | 
 |         ctx.fillText(scale.toFixed(decimal_places) + 'x' , screenWidth - 10, screenHeight - 5); | 
 |     } | 
 |     if (draw_hints) { | 
 |         ctx.font = "normal 10px Arial"; | 
 |         ctx.fillStyle = "rgba(0,0,0, 0.5)"; | 
 |         ctx.textAlign = "right"; | 
 |         var y = 4; | 
 |         ctx.fillText("control lines : " +  controlLinesKey, ctx.screenWidthwidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("curve t : " +  curveTKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("deriviatives : " +  deriviativesKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("intersect t : " +  intersectTKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("hodo : " +  hodoKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("log : " +  logKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("log curve : " +  logCurvesKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("mid point : " +  midpointKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("points : " +  ptsKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("sequence : " +  sequenceKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |         ctx.fillText("xy : " +  xyKey, screenWidth - 10, pos * 50 + y++ * 10); | 
 |     } | 
 | } | 
 |  | 
 | function drawBox(y, backC, foreC, str, enable, label) { | 
 |     ctx.beginPath(); | 
 |     ctx.fillStyle = backC; | 
 |     ctx.rect(screenWidth - 40, y * 50 + 10, 40, 30); | 
 |     ctx.fill(); | 
 |     ctx.font = "normal 16px Arial"; | 
 |     ctx.fillStyle = foreC; | 
 |     ctx.textAlign = "center"; | 
 |     ctx.fillText(str, screenWidth - 20, y * 50 + 32); | 
 |     if (!enable) { | 
 |         ctx.fillStyle = "rgba(255,255,255, 0.5)"; | 
 |         ctx.fill(); | 
 |     } | 
 |     if (label != '') { | 
 |         ctx.font = "normal 9px Arial"; | 
 |         ctx.fillStyle = "black"; | 
 |         ctx.fillText(label, screenWidth - 47, y * 50 + 40); | 
 |     } | 
 | } | 
 |  | 
 | function drawCurveTControl() { | 
 |     ctx.lineWidth = 2; | 
 |     ctx.strokeStyle = "rgba(0,0,0, 0.3)"; | 
 |     ctx.beginPath(); | 
 |     ctx.rect(screenWidth - 80, 40, 28, screenHeight - 80); | 
 |     ctx.stroke(); | 
 |     var ty = 40 + curveT * (screenHeight - 80); | 
 |     ctx.beginPath(); | 
 |     ctx.moveTo(screenWidth - 80, ty); | 
 |     ctx.lineTo(screenWidth - 85, ty - 5); | 
 |     ctx.lineTo(screenWidth - 85, ty + 5); | 
 |     ctx.lineTo(screenWidth - 80, ty); | 
 |     ctx.fillStyle = "rgba(0,0,0, 0.6)"; | 
 |     ctx.fill(); | 
 |     var num = curveT.toFixed(decimal_places); | 
 |     ctx.font = "normal 10px Arial"; | 
 |     ctx.textAlign = "left"; | 
 |     ctx.fillText(num, screenWidth - 78, ty); | 
 | } | 
 |  | 
 | function ptInTControl() { | 
 |     var e = window.event; | 
 | 	var tgt = e.target || e.srcElement; | 
 |     var left = tgt.offsetLeft; | 
 |     var top = tgt.offsetTop; | 
 |     var x = (e.clientX - left); | 
 |     var y = (e.clientY - top); | 
 |     if (x < screenWidth - 80 || x > screenWidth - 50) { | 
 |         return false; | 
 |     } | 
 |     if (y < 40 || y > screenHeight - 80) { | 
 |         return false; | 
 |     } | 
 |     curveT = (y - 40) / (screenHeight - 120); | 
 |     if (curveT < 0 || curveT > 1) { | 
 |         throw "stop execution"; | 
 |     } | 
 |     return true; | 
 | } | 
 |  | 
 | function drawTop() { | 
 |     if (tests[testIndex] == null) { | 
 |         var str = testDivs[testIndex].textContent; | 
 |         parse_all(str); | 
 |         var title = testDivs[testIndex].id.toString(); | 
 |         testTitles[testIndex] = title; | 
 |     } | 
 |     init(tests[testIndex]); | 
 |     redraw(); | 
 | } | 
 |  | 
 | function redraw() { | 
 |     if (focus_on_selection) { | 
 |         collect_bounds = true; | 
 |         draw(tests[testIndex], testLines[testIndex], testTitles[testIndex]); | 
 |         collect_bounds = false; | 
 |         if (focusXmin < focusXmax && focusYmin < focusYmax) { | 
 |             setScale(focusXmin, focusXmax, focusYmin, focusYmax); | 
 |         } | 
 |     } | 
 |     ctx.beginPath(); | 
 |     ctx.fillStyle = "white"; | 
 |     ctx.rect(0, 0, screenWidth, screenHeight); | 
 |     ctx.fill(); | 
 |     draw(tests[testIndex], testLines[testIndex], testTitles[testIndex]); | 
 | } | 
 |  | 
 | function dumpCurvePartial(test, id, t0, t1) { | 
 |     var curve = curveByID(test, id); | 
 |     var name = ["line", "quad", "cubic"][curve.length / 2 - 2]; | 
 |     console.log("id=" + id + " " + name + "=" +  curveToString(curve) | 
 |         + " t0=" + t0 + " t1=" + t1 | 
 |         + " partial=" + curveToString(curvePartialByID(test, id, t0, t1))); | 
 | } | 
 |  | 
 | function dumpAngleTest(test, id, t0, t1) { | 
 |     var curve = curveByID(test, id); | 
 |     console.log("    { {" + curveToString(curve) + "}, "  | 
 |             + curve.length / 2 + ", " + t0 + ", " + t1 + ", {} }, //"); | 
 | } | 
 |  | 
 | function dumpLogToConsole() { | 
 |     if (logStart < 0) { | 
 |         return; | 
 |     } | 
 |     var test = tests[testIndex]; | 
 |     var recType = REC_TYPE_UNKNOWN; | 
 |     var records; | 
 |     for (var index = 0; index < test.length; index += 3) { | 
 |         var lastLineNo = test[index + 1]; | 
 |         if (lastLineNo >= logStart && lastLineNo < logStart + logRange) { | 
 |             recType = test[index]; | 
 |             records = test[index + 2]; | 
 |             break; | 
 |         } | 
 |     } | 
 |     if (recType == REC_TYPE_UNKNOWN) { | 
 |         return; | 
 |     } | 
 |     var lines = testLines[testIndex]; | 
 |     for (var idx = 0; idx < logRange; ++idx) { | 
 |         var line = lines[logStart + idx]; | 
 |         console.log(line); | 
 |         for (var recordIndex = 0; recordIndex < records.length; recordIndex += 2) { | 
 |             var fragType = records[recordIndex]; | 
 |             var frags = records[recordIndex + 1]; | 
 |             if (recType == REC_TYPE_ANGLE && fragType == ANGLE_AFTER) { | 
 |                 dumpCurvePartial(test, frags[0], frags[3], frags[4]); | 
 |                 dumpCurvePartial(test, frags[5], frags[8], frags[9]); | 
 |                 dumpCurvePartial(test, frags[10], frags[13], frags[14]); | 
 |                 console.log("\nstatic IntersectData intersectDataSet[] = {"); | 
 |                 dumpAngleTest(test, frags[0], frags[3], frags[4]); | 
 |                 dumpAngleTest(test, frags[5], frags[8], frags[9]); | 
 |                 dumpAngleTest(test, frags[10], frags[13], frags[14]); | 
 |                 console.log("};"); | 
 |             } else if (recType == REC_TYPE_ANGLE && fragType == ANGLE_AFTER2) { | 
 |                 dumpCurvePartial(test, frags[0], frags[4], frags[5]); | 
 |                 dumpCurvePartial(test, frags[6], frags[10], frags[11]); | 
 |                 dumpCurvePartial(test, frags[12], frags[16], frags[17]); | 
 |                 console.log("\nstatic IntersectData intersectDataSet[] = { //"); | 
 |                 dumpAngleTest(test, frags[0], frags[4], frags[5]); | 
 |                 dumpAngleTest(test, frags[6], frags[10], frags[11]); | 
 |                 dumpAngleTest(test, frags[12], frags[16], frags[17]); | 
 |                 console.log("}; //"); | 
 |             } | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | var activeKey = 'a'; | 
 | var pathKey = 'b'; | 
 | var pathBackKey = 'B'; | 
 | var centerKey = 'c'; | 
 | var addKey = 'd'; | 
 | var deriviativesKey = 'f'; | 
 | var angleKey = 'g'; | 
 | var angleBackKey = 'G'; | 
 | var hodoKey = 'h'; | 
 | var intersectionKey = 'i'; | 
 | var intersectionBackKey = 'I'; | 
 | var sequenceKey = 'j'; | 
 | var midpointKey = 'k'; | 
 | var logKey = 'l'; | 
 | var logToConsoleKey = 'L'; | 
 | var markKey = 'm'; | 
 | var sortKey = 'o'; | 
 | var opKey = 'p'; | 
 | var opBackKey = 'P'; | 
 | var computedKey = 'q'; | 
 | var computedBackKey = 'Q'; | 
 | var stepKey = 's'; | 
 | var stepBackKey = 'S'; | 
 | var intersectTKey = 't'; | 
 | var curveTKey = 'u'; | 
 | var controlLinesBackKey = 'V'; | 
 | var controlLinesKey = 'v'; | 
 | var ptsKey = 'x'; | 
 | var xyKey = 'y'; | 
 | var logCurvesKey = 'z'; | 
 | var focusKey = '`'; | 
 | var idKey = '.'; | 
 | var retinaKey = '\\'; | 
 |  | 
 | function doKeyPress(evt) { | 
 |     var char = String.fromCharCode(evt.charCode); | 
 |     var focusWasOn = false; | 
 |     switch (char) { | 
 |     case '0': | 
 |     case '1': | 
 |     case '2': | 
 |     case '3': | 
 |     case '4': | 
 |     case '5': | 
 |     case '6': | 
 |     case '7': | 
 |     case '8': | 
 |     case '9': | 
 |         decimal_places = char - '0'; | 
 |         redraw(); | 
 |         break; | 
 |     case activeKey: | 
 |         draw_active ^= true; | 
 |         redraw();  | 
 |         break; | 
 |     case addKey: | 
 |         draw_add ^= true; | 
 |         redraw();  | 
 |         break; | 
 |     case angleKey: | 
 |         draw_angle = (draw_angle + 1) % 3; | 
 |         redraw(); | 
 |         break; | 
 |     case angleBackKey: | 
 |         draw_angle = (draw_angle + 2) % 3; | 
 |         redraw(); | 
 |         break; | 
 |     case centerKey: | 
 |         setScale(xmin, xmax, ymin, ymax); | 
 |         redraw();  | 
 |         break; | 
 |     case controlLinesBackKey: | 
 |         control_lines = (control_lines + 3) % 4; | 
 |         redraw();  | 
 |         break; | 
 |     case controlLinesKey: | 
 |         control_lines = (control_lines + 1) % 4; | 
 |         redraw();  | 
 |         break; | 
 |     case computedBackKey: | 
 |         draw_computed = (draw_computed + 5) % 6; | 
 |         redraw();  | 
 |         break; | 
 |     case computedKey: | 
 |         draw_computed = (draw_computed + 1) % 6; | 
 |         redraw();  | 
 |         break; | 
 |     case curveTKey: | 
 |         curve_t ^= true; | 
 |         if (curve_t) { | 
 |             draw_legend = true; | 
 |         } | 
 |         redraw(); | 
 |         break; | 
 |     case deriviativesKey: | 
 |         draw_deriviatives = (draw_deriviatives + 1) % 3; | 
 |         redraw(); | 
 |         break; | 
 |     case focusKey: | 
 |         focus_on_selection ^= true; | 
 |         setScale(xmin, xmax, ymin, ymax); | 
 |         redraw(); | 
 |         break; | 
 |     case hodoKey: | 
 |         draw_hodo = (draw_hodo + 1) % 4; | 
 |         redraw(); | 
 |         break; | 
 |     case idKey: | 
 |         draw_id ^= true; | 
 |         redraw(); | 
 |         break; | 
 |     case intersectionBackKey: | 
 |         draw_intersection = (draw_intersection + 3) % 4; | 
 |         redraw();  | 
 |         break; | 
 |     case intersectionKey: | 
 |         draw_intersection = (draw_intersection + 1) % 4; | 
 |         redraw();  | 
 |         break; | 
 |     case intersectTKey: | 
 |         draw_intersectT ^= true; | 
 |         redraw(); | 
 |         break; | 
 |     case logCurvesKey: | 
 |         logCurves(tests[testIndex]); | 
 |         break; | 
 |     case logKey: | 
 |         draw_log ^= true; | 
 |         redraw(); | 
 |         break; | 
 |     case logToConsoleKey: | 
 |         if (draw_log) { | 
 |             dumpLogToConsole(); | 
 |         } | 
 |         break; | 
 |     case markKey: | 
 |         draw_mark ^= true; | 
 |         redraw(); | 
 |         break; | 
 |     case midpointKey: | 
 |         draw_midpoint ^= true; | 
 |         redraw(); | 
 |         break; | 
 |     case opKey: | 
 |         draw_op = (draw_op + 1) % 3; | 
 |         redraw(); | 
 |         break; | 
 |     case opBackKey: | 
 |         draw_op = (draw_op + 2) % 3; | 
 |         redraw(); | 
 |         break; | 
 |     case pathKey: | 
 |         draw_path = (draw_path + 1) % 4; | 
 |         redraw();  | 
 |         break; | 
 |     case pathBackKey: | 
 |         draw_path = (draw_path + 3) % 4; | 
 |         redraw();  | 
 |         break; | 
 |     case ptsKey: | 
 |         pt_labels = (pt_labels + 1) % 3; | 
 |         redraw(); | 
 |         break; | 
 |     case retinaKey: | 
 |         retina_scale ^= true; | 
 |         drawTop(); | 
 |         break; | 
 |     case sequenceKey: | 
 |         draw_sequence ^= true; | 
 |         redraw(); | 
 |         break; | 
 |     case sortKey: | 
 |         draw_sort = (draw_sort + 1) % 3; | 
 |         drawTop(); | 
 |         break; | 
 |     case stepKey: | 
 |         step_limit++; | 
 |         if (step_limit > stepMax) { | 
 |             step_limit = stepMax; | 
 |         } | 
 |         redraw(); | 
 |         break; | 
 |     case stepBackKey: | 
 |         step_limit--; | 
 |         if (step_limit < 0) { | 
 |             step_limit = 0; | 
 |         } | 
 |         redraw(); | 
 |         break; | 
 |     case xyKey: | 
 |         debug_xy = (debug_xy + 1) % 3; | 
 |         redraw(); | 
 |         break; | 
 |     case '-': | 
 |         focusWasOn = focus_on_selection; | 
 |         if (focusWasOn) { | 
 |             focus_on_selection = false; | 
 |             scale /= 1.2; | 
 |         } else { | 
 |             scale /= 2; | 
 |             calcLeftTop(); | 
 |         } | 
 |         redraw(); | 
 |         focus_on_selection = focusWasOn; | 
 |         break; | 
 |     case '=': | 
 |     case '+': | 
 |         focusWasOn = focus_on_selection; | 
 |         if (focusWasOn) { | 
 |             focus_on_selection = false; | 
 |             scale *= 1.2; | 
 |         } else { | 
 |             scale *= 2; | 
 |             calcLeftTop(); | 
 |         } | 
 |         redraw(); | 
 |         focus_on_selection = focusWasOn; | 
 |         break; | 
 |     case '?': | 
 |         draw_hints ^= true; | 
 |         if (draw_hints && !draw_legend) { | 
 |             draw_legend = true; | 
 |         } | 
 |         redraw(); | 
 |         break; | 
 |     case '/': | 
 |         draw_legend ^= true; | 
 |         redraw(); | 
 |         break; | 
 |     } | 
 | } | 
 |  | 
 | function doKeyDown(evt) { | 
 |     var char = evt.keyCode; | 
 |     var preventDefault = false; | 
 |     switch (char) { | 
 |     case 37: // left arrow | 
 |         if (evt.shiftKey) { | 
 |             testIndex -= 9; | 
 |         } | 
 |         if (--testIndex < 0) | 
 |             testIndex = tests.length - 1; | 
 |         drawTop(); | 
 |         preventDefault = true; | 
 |         break; | 
 |     case 39: // right arrow | 
 |         if (evt.shiftKey) { | 
 |             testIndex += 9; | 
 |         } | 
 |         if (++testIndex >= tests.length) | 
 |             testIndex = 0; | 
 |         drawTop(); | 
 |         preventDefault = true; | 
 |         break; | 
 |     } | 
 |     if (preventDefault) { | 
 |           evt.preventDefault(); | 
 |           return false; | 
 |     } | 
 |     return true; | 
 | } | 
 |  | 
 | (function() { | 
 |     var hidden = "hidden"; | 
 |  | 
 |     // Standards: | 
 |     if (hidden in document) | 
 |         document.addEventListener("visibilitychange", onchange); | 
 |     else if ((hidden = "mozHidden") in document) | 
 |         document.addEventListener("mozvisibilitychange", onchange); | 
 |     else if ((hidden = "webkitHidden") in document) | 
 |         document.addEventListener("webkitvisibilitychange", onchange); | 
 |     else if ((hidden = "msHidden") in document) | 
 |         document.addEventListener("msvisibilitychange", onchange); | 
 |     // IE 9 and lower: | 
 |     else if ('onfocusin' in document) | 
 |         document.onfocusin = document.onfocusout = onchange; | 
 |     // All others: | 
 |     else | 
 |         window.onpageshow = window.onpagehide  | 
 |             = window.onfocus = window.onblur = onchange; | 
 |  | 
 |     function onchange (evt) { | 
 |         var v = 'visible', h = 'hidden', | 
 |             evtMap = {  | 
 |                 focus:v, focusin:v, pageshow:v, blur:h, focusout:h, pagehide:h  | 
 |             }; | 
 |  | 
 |         evt = evt || window.event; | 
 |         if (evt.type in evtMap) | 
 |             document.body.className = evtMap[evt.type]; | 
 |         else         | 
 |             document.body.className = this[hidden] ? "hidden" : "visible"; | 
 |     } | 
 | })(); | 
 |  | 
 | function calcXY() { | 
 |     var e = window.event; | 
 | 	var tgt = e.target || e.srcElement; | 
 |     var left = tgt.offsetLeft; | 
 |     var top = tgt.offsetTop; | 
 |     mouseX = (e.clientX - left) / scale + srcLeft; | 
 |     mouseY = (e.clientY - top) / scale + srcTop; | 
 | } | 
 |  | 
 | function calcLeftTop() { | 
 |     srcLeft = mouseX - screenWidth / 2 / scale; | 
 |     srcTop = mouseY - screenHeight / 2 / scale; | 
 | } | 
 |  | 
 | var disableClick = false; | 
 |  | 
 | function handleMouseClick() { | 
 |     if (disableClick) { | 
 |         return; | 
 |     } | 
 |     if (!curve_t || !ptInTControl()) { | 
 |         calcXY(); | 
 |         calcLeftTop(); | 
 |     } | 
 |     redraw(); | 
 | //    if (!curve_t || !ptInTControl()) { | 
 | //        mouseX = screenWidth / 2 / scale + srcLeft; | 
 | //        mouseY = screenHeight / 2 / scale + srcTop; | 
 | //    } | 
 | } | 
 |  | 
 | function handleMouseOver() { | 
 |     calcXY(); | 
 |     if (debug_xy != 2) { | 
 |         return; | 
 |     } | 
 |     var num = mouseX.toFixed(decimal_places) + ", " + mouseY.toFixed(decimal_places); | 
 |     ctx.beginPath(); | 
 |     ctx.rect(300,100,num.length * 6,10); | 
 |     ctx.fillStyle="white"; | 
 |     ctx.fill(); | 
 |     ctx.font = "normal 10px Arial"; | 
 |     ctx.fillStyle="black"; | 
 |     ctx.textAlign = "left"; | 
 |     ctx.fillText(num, 300, 108); | 
 | } | 
 |  | 
 | function start() { | 
 |     for (var i = 0; i < testDivs.length; ++i) { | 
 |         tests[i] = null; | 
 |     } | 
 |     testIndex = 0; | 
 |     drawTop(); | 
 |     window.addEventListener('keypress', doKeyPress, true); | 
 |     window.addEventListener('keydown', doKeyDown, true); | 
 |     window.onresize = function() { | 
 |         drawTop(); | 
 |     } | 
 |     /* | 
 |     window.onpagehide = function() { | 
 |         disableClick = true; | 
 |     } | 
 |     */ | 
 |     window.onpageshow = function () { | 
 |         disableClick = false; | 
 |     } | 
 | } | 
 |  | 
 | </script> | 
 | </head> | 
 |  | 
 | <body onLoad="start();"> | 
 | <canvas id="canvas" width="750" height="500" | 
 |     onmousemove="handleMouseOver()" | 
 |     onclick="handleMouseClick()" | 
 |     ></canvas > | 
 | </body> | 
 | </html> |