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gerrit-public.fairphone.software / platform / external / skia / 534aa5b9460639a09b9dc30d29e77782e44b8fff / . / experimental / Intersection / op.htm
blob: 7049f0262b8e42ec60c2fc32dc297b3a78d841ba [file] [log] [blame]
<html>
<head>
<div style="height:0">
<div id="testSimplifyQuadratic1">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(1, 0, 1, 1);
path.close();
path.moveTo(1, 0);
path.quadTo(0, 0, 0, 1);
path.close();
testSimplify(path, true, out, bitmap);
}
</div>
<div id="testSimplifyQuadratic2">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(20, 0, 20, 20);
path.close();
path.moveTo(20, 0);
path.quadTo(0, 0, 0, 20);
path.close();
testSimplify(path, true, out, bitmap);
}
</div>
<div id="testSimplifyQuadratic3">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(20, 0, 20, 20);
path.close();
path.moveTo(0, 20);
path.quadTo(0, 0, 20, 0);
path.close();
testSimplify(path, true, out, bitmap);
}
</div>
<div id="testSimplifyQuadratic4">
SkPath path, out;
path.moveTo(0, 20);
path.quadTo(20, 0, 40, 20);
path.close();
path.moveTo(40, 10);
path.quadTo(20, 30, 0, 10);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic5">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(0, 0);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 0);
path.quadTo(0, 0, 0, 1);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic6">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(1, 0);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 0);
path.quadTo(1, 0, 0, 1);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic7">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(0, 1);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 0);
path.quadTo(1, 0, 0, 2);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic8">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(0, 0);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 0);
path.quadTo(1, 0, 0, 2);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic9">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(1, 1);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 0);
path.quadTo(1, 0, 2, 2);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic10">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(0, 0);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 1);
path.quadTo(1, 1, 1, 2);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic11">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(0, 2);
path.close();
path.moveTo(0, 0);
path.lineTo(2, 1);
path.quadTo(2, 2, 3, 3);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic12">
SkPath path, out;
path.moveTo(0, 0);
path.lineTo(0, 2);
path.lineTo(0, 0);
path.close();
path.moveTo(3, 0);
path.quadTo(1, 1, 0, 2);
path.lineTo(3, 0);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic13">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 1, 0);
path.lineTo(1, 1);
path.lineTo(0, 0);
path.close();
path.moveTo(0, 0);
path.quadTo(3, 0, 1, 1);
path.lineTo(0, 0);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic14">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(1, 1);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 0);
path.quadTo(0, 1, 2, 1);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic15">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 1, 3);
path.lineTo(3, 3);
path.close();
path.moveTo(0, 1);
path.lineTo(1, 1);
path.quadTo(0, 3, 3, 3);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic16">
SkPath path, out;
path.moveTo(0, 0);
path.quadTo(0, 0, 0, 0);
path.lineTo(0, 1);
path.close();
path.moveTo(0, 0);
path.lineTo(0, 0);
path.quadTo(1, 0, 0, 1);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic17">
SkPath path, out;
path.moveTo(8, 8);
path.quadTo(10, 10, 8, -10);
path.close();
path.moveTo(8, 8);
path.quadTo(12, 12, 14, 4);
path.close();
path.moveTo(8, 8);
path.quadTo(9, 9, 10, 8);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
}
</div>
<div id="testSimplifyQuadratic18">
SkPath path, out;
path.moveTo(8.0000000000000071, 8.0000000000000071);
path.quadTo(8.7289570079366854, 8.7289570079366889, 9.3914917259458743, 9.0593802763083691);
path.close();
path.moveTo(8.0000000000000142, 8.0000000000000142);
path.quadTo(8.1250000000000107, 8.1250000000000071, 8.2500000000000071, 8.2187500000000053);
path.close();
testSimplify(path, true, out, bitmap);
drawAsciiPaths(path, out, true);
</div>
<div id="testSimplifyQuadratic19">
SkPath path, simple;
path.moveTo(0,4);
path.lineTo(6,4);
path.lineTo(3,1);
path.close();
path.moveTo(2,3);
path.lineTo(3,2);
path.lineTo(4,3);
path.close();
testSimplifyx(path);
</div>
<div id="testSimplifyQuadratic20">
SkPath path, simple;
path.moveTo(0,4);
path.lineTo(6,4);
path.lineTo(3,1);
path.close();
path.moveTo(2,3);
path.lineTo(4,3);
path.lineTo(3,2);
path.close();
testSimplifyx(path);
</div>
<div id="testSimplifyQuadratic21">
SkPath path, simple;
path.moveTo(0,4);
path.lineTo(8,4);
path.lineTo(4,0);
path.close();
path.moveTo(2,2);
path.lineTo(3,3);
path.lineTo(4,2);
path.close();
testSimplifyx(path);
</div>
<div id="testLine6">
SkPath path, simple;
path.moveTo(0,0);
path.lineTo(4,0);
path.lineTo(2,2);
path.close();
path.moveTo(2,0);
path.lineTo(6,0);
path.lineTo(4,2);
path.close();
testSimplifyx(path);
</div>
<div id="testLine7">
SkPath path, simple;
path.moveTo(0,0);
path.lineTo(4,0);
path.lineTo(2,2);
path.close();
path.moveTo(6,0);
path.lineTo(2,0);
path.lineTo(4,2);
path.close();
testSimplifyx(path);
</div>
<div id="testLine7b">
path.moveTo(0,0);
path.lineTo(4,0);
path.close();
path.moveTo(6,0);
path.lineTo(2,0);
path.lineTo(4,2);
path.close();
</div>
<div id="testLine9">
SkPath path, simple;
path.moveTo(0,4);
path.lineTo(4,4);
path.lineTo(2,2);
path.close();
path.moveTo(6,4);
path.lineTo(2,4);
path.lineTo(4,2);
path.close();
testSimplifyx(path);
</div>
<div id="testLine12">
path.moveTo(0,4);
path.lineTo(6,4);
path.lineTo(3,1);
path.close();
path.moveTo(2,3);
path.lineTo(3,2);
path.lineTo(4,3);
path.close();
</div>
<div id="testLine13">
path.moveTo(6,4);
path.lineTo(0,4);
path.lineTo(3,1);
path.close();
path.moveTo(3,2);
path.lineTo(2,3);
path.lineTo(4,3);
path.close();
</div>
<div id="testLine17">
SkPath path, simple;
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 0);
testSimplifyx(path);
</div>
<div id="testLine19">
SkPath path, simple;
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(12, 16, 21, 21, (SkPath::Direction) 0);
testSimplifyx(path);
</div>
<div id="testLine22">
path.addRect(0, 12, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine24">
path.addRect(0, 18, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine28">
SkPath path, simple;
path.addRect(0, 6, 12, 12, (SkPath::Direction) 0);
path.addRect(0, 0, 9, 9, (SkPath::Direction) 0);
testSimplifyx(path);
</div>
<div id="testLine29">
SkPath path, simple;
path.addRect(0, 18, 12, 12, (SkPath::Direction) 0);
path.addRect(12, 12, 21, 21, (SkPath::Direction) 0);
testSimplifyx(path);
</div>
<div id="testLine30">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 4, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine31">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(0, 4, 9, 9, (SkPath::Direction) 0);
</div>
<div id="testLine32">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine33">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 16, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine34">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 6, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine35">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 0, 18, 18, (SkPath::Direction) 0);
path.addRect(4, 16, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine36">
path.addRect(0, 10, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 12, 18, 18, (SkPath::Direction) 0);
path.addRect(4, 16, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine37">
path.addRect(0, 20, 20, 20, (SkPath::Direction) 0);
path.addRect(18, 24, 30, 30, (SkPath::Direction) 0);
path.addRect(0, 0, 9, 9, (SkPath::Direction) 0);
</div>
<div id="testLine38">
path.addRect(10, 0, 30, 30, (SkPath::Direction) 0);
path.addRect(6, 12, 18, 18, (SkPath::Direction) 0);
path.addRect(12, 12, 21, 21, (SkPath::Direction) 0);
</div>
<div id="testLine39">
path.addRect(10, 0, 30, 30, (SkPath::Direction) 0);
path.addRect(12, 6, 24, 24, (SkPath::Direction) 0);
path.addRect(12, 4, 21, 21, (SkPath::Direction) 0);
</div>
<div id="testLine40">
path.addRect(10, 0, 30, 30, (SkPath::Direction) 0);
path.addRect(12, 18, 24, 24, (SkPath::Direction) 0);
path.addRect(4, 16, 13, 13, (SkPath::Direction) 0);
</div>
<div id="testLine41">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(18, 24, 30, 30, (SkPath::Direction) 0);
path.addRect(12, 0, 21, 21, (SkPath::Direction) 0);
</div>
<div id="testLine42">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(8, 16, 17, 17, (SkPath::Direction) 0);
</div>
<div id="testLine43">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 24, 18, 18, (SkPath::Direction) 0);
path.addRect(0, 32, 9, 36, (SkPath::Direction) 1);
</div>
<div id="testLine44">
path.addRect(10, 40, 30, 30, (SkPath::Direction) 0);
path.addRect(18, 0, 30, 30, (SkPath::Direction) 0);
path.addRect(18, 32, 27, 36, (SkPath::Direction) 1);
</div>
<div id="testLine45">
path.addRect(10, 0, 30, 30, (SkPath::Direction) 0);
path.addRect(18, 0, 30, 30, (SkPath::Direction) 0);
path.addRect(24, 32, 33, 36, (SkPath::Direction) 0);
</div>
<div id="testLine46">
path.addRect(10, 40, 30, 30, (SkPath::Direction) 0);
path.addRect(24, 0, 36, 36, (SkPath::Direction) 0);
path.addRect(24, 32, 33, 36, (SkPath::Direction) 0);
</div>
<div id="testLine47">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(0, 0, 9, 9, (SkPath::Direction) 1);
</div>
<div id="testLine48">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 6, 12, 12, (SkPath::Direction) 0);
path.addRect(0, 0, 9, 9, (SkPath::Direction) 1);
</div>
<div id="testLine49">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 0);
path.addRect(0, 0, 9, 9, (SkPath::Direction) 0);
</div>
<div id="testLine50">
path.addRect(10, 30, 30, 30, (SkPath::Direction) 0);
path.addRect(24, 20, 36, 30, (SkPath::Direction) 0);
</div>
<div id="testLine51">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 12, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 1);
</div>
<div id="testLine52">
path.addRect(0, 30, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 20, 18, 30, (SkPath::Direction) 0);
path.addRect(32, 0, 36, 41, (SkPath::Direction) 0);
</div>
<div id="testLine53">
path.addRect(10, 30, 30, 30, (SkPath::Direction) 0);
path.addRect(12, 20, 24, 30, (SkPath::Direction) 0);
path.addRect(12, 32, 21, 36, (SkPath::Direction) 1);
</div>
<div id="testLine54">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 0, 18, 18, (SkPath::Direction) 0);
path.addRect(8, 4, 17, 17, (SkPath::Direction) 1);
</div>
<div id="testLine55">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 6, 18, 18, (SkPath::Direction) 0);
path.addRect(4, 4, 13, 13, (SkPath::Direction) 1);
</div>
<div id="testLine56">
path.addRect(0, 20, 20, 20, (SkPath::Direction) 0);
path.addRect(18, 20, 30, 30, (SkPath::Direction) 0);
path.addRect(12, 0, 21, 21, (SkPath::Direction) 1);
</div>
<div id="testLine57">
path.addRect(20, 0, 40, 40, (SkPath::Direction) 0);
path.addRect(20, 0, 30, 40, (SkPath::Direction) 0);
path.addRect(12, 0, 21, 21, (SkPath::Direction) 1);
</div>
<div id="testLine58">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 0, 12, 12, (SkPath::Direction) 1);
path.addRect(0, 12, 9, 9, (SkPath::Direction) 1);
</div>
<div id="testLine59">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 6, 18, 18, (SkPath::Direction) 1);
path.addRect(4, 4, 13, 13, (SkPath::Direction) 1);
</div>
<div id="testLine60">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(6, 12, 18, 18, (SkPath::Direction) 1);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 1);
</div>
<div id="testLine61">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(12, 0, 24, 24, (SkPath::Direction) 1);
path.addRect(12, 0, 21, 21, (SkPath::Direction) 1);
</div>
<div id="testLine62">
path.addRect(0, 0, 60, 60, (SkPath::Direction) 0);
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 12, 12, 12, (SkPath::Direction) 0);
path.addRect(4, 12, 13, 13, (SkPath::Direction) 1);
</div>
<div id="testLine63">
path.addRect(0, 0, 60, 60, (SkPath::Direction) 0);
path.addRect(0, 10, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 6, 12, 12, (SkPath::Direction) 1);
path.addRect(0, 32, 9, 36, (SkPath::Direction) 1);
</div>
<div id="testLine64">
path.addRect(0, 0, 60, 60, (SkPath::Direction) 0);
path.addRect(10, 40, 30, 30, (SkPath::Direction) 0);
path.addRect(18, 6, 30, 30, (SkPath::Direction) 0);
</div>
<div id="testLine65">
path.addRect(0, 0, 60, 60, (SkPath::Direction) 0);
path.addRect(10, 0, 30, 30, (SkPath::Direction) 0);
path.addRect(24, 0, 36, 36, (SkPath::Direction) 0);
path.addRect(32, 6, 36, 41, (SkPath::Direction) 1);
</div>
<div id="testLine66">
path.addRect(0, 0, 60, 60, (SkPath::Direction) 0);
path.addRect(0, 30, 20, 20, (SkPath::Direction) 0);
path.addRect(12, 20, 24, 30, (SkPath::Direction) 0);
</div>
<div id="testLine67">
path.addRect(0, 0, 60, 60, (SkPath::Direction) 0);
path.addRect(10, 40, 30, 30, (SkPath::Direction) 0);
path.addRect(24, 20, 36, 30, (SkPath::Direction) 0);
path.addRect(32, 0, 36, 41, (SkPath::Direction) 0);
</div>
<div id="testLine68a">
path.addRect(0, 0, 8, 8, (SkPath::Direction) 0);
path.addRect(2, 2, 6, 6, (SkPath::Direction) 0);
path.addRect(1, 2, 4, 2, (SkPath::Direction) 0);
</div>
<div id="testLine68b">
path.addRect(0, 0, 8, 8, (SkPath::Direction) 0);
path.addRect(2, 2, 6, 6, (SkPath::Direction) 1);
path.addRect(1, 2, 4, 2, (SkPath::Direction) 0);
</div>
<div id="testLine68c">
path.addRect(0, 0, 8, 8, (SkPath::Direction) 1);
path.addRect(2, 2, 6, 6, (SkPath::Direction) 0);
path.addRect(1, 2, 4, 2, (SkPath::Direction) 0);
</div>
<div id="testLine68d">
path.addRect(0, 0, 8, 8, (SkPath::Direction) 1);
path.addRect(2, 2, 6, 6, (SkPath::Direction) 1);
path.addRect(1, 2, 4, 2, (SkPath::Direction) 0);
</div>
<div id="testLine68e">
path.addRect(0, 0, 8, 8, (SkPath::Direction) 0);
path.addRect(0, 0, 8, 8, (SkPath::Direction) 0);
path.addRect(2, 2, 6, 6, (SkPath::Direction) 1);
path.addRect(1, 2, 2, 2, (SkPath::Direction) 0);
</div>
<div id="testLine68f">
path.addRect(0, 0, 8, 8, (SkPath::Direction) 0);
path.addRect(2, 2, 6, 6, (SkPath::Direction) 1);
path.addRect(2, 2, 6, 6, (SkPath::Direction) 1);
path.addRect(1, 2, 2, 2, (SkPath::Direction) 0);
</div>
<div id="testLine69">
path.addRect(0, 20, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 20, 12, 30, (SkPath::Direction) 0);
path.addRect(12, 32, 21, 36, (SkPath::Direction) 0);
</div>
<div id="testLine70">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(0, 24, 12, 12, (SkPath::Direction) 0);
path.addRect(12, 32, 21, 36, (SkPath::Direction) 1);
</div>
<div id="testLine71">
path.addRect(0, 0, 20, 20, (SkPath::Direction) 0);
path.addRect(12, 0, 24, 24, (SkPath::Direction) 0);
path.addRect(12, 32, 21, 36, (SkPath::Direction) 0);
</div>
</div>
<script type="text/javascript">
var testDivs = [
testLine71,
testLine70,
testLine69,
testLine68f,
testLine68e,
testLine68d,
testLine68c,
testLine68b,
testLine68a,
testLine67,
testLine66,
testLine65,
testLine64,
testLine63,
testLine62,
testLine61,
testLine60,
testLine59,
testLine58,
testLine57,
testLine56,
testLine55,
testLine54,
testLine53,
testLine52,
testLine51,
testLine50,
testLine49,
testLine48,
testLine47,
testLine46,
testLine45,
testLine44,
testLine43,
testLine42,
testLine41,
testLine40,
testLine39,
testLine38,
testLine37,
testLine36,
testLine35,
testLine34,
testLine33,
testLine32,
testLine31,
testLine30,
testLine29,
testLine28,
testLine24,
testLine22,
testLine19,
testLine17,
testLine13,
testLine12,
testLine9,
testLine7b,
testLine7,
testSimplifyQuadratic21,
testSimplifyQuadratic20,
testSimplifyQuadratic19,
testSimplifyQuadratic18,
testSimplifyQuadratic17,
testSimplifyQuadratic16,
testSimplifyQuadratic15,
testSimplifyQuadratic14,
testSimplifyQuadratic13,
testSimplifyQuadratic12,
testSimplifyQuadratic11,
testSimplifyQuadratic10,
testSimplifyQuadratic9,
testSimplifyQuadratic8,
testSimplifyQuadratic7,
testSimplifyQuadratic6,
testSimplifyQuadratic5,
testSimplifyQuadratic4,
testSimplifyQuadratic3,
testSimplifyQuadratic2,
testSimplifyQuadratic1,
];
var scale, columns, rows, xStart, yStart;
var ticks = 0.1;
var at_x = 13 + 0.5;
var at_y = 13 + 0.5;
var tests = [];
var testTitles = [];
var testIndex = 0;
var ctx;
function parse(test, title) {
var contours = [];
var contourStrs = test.split("path.close();");
var pattern = /-?\d+\.*\d*/g;
for (var c in contourStrs) {
var contour = contourStrs[c];
var verbStrs = contour.split("path");
var verbs = [];
for (var v in verbStrs) {
var verbStr = verbStrs[v];
var points = verbStr.match(pattern);
var pts = [];
for (var wd in points) {
var num = parseFloat(points[wd]);
if (isNaN(num)) continue;
pts.push(num);
}
if (pts.length > 0)
verbs.push(pts);
}
if (verbs.length > 0) {
var lastIndex = verbs.length - 1;
var lastVerb = verbs[lastIndex];
var lastLen = lastVerb.length;
if (verbs[0][0] != lastVerb[lastLen - 2] && verbs[0][1] != lastVerb[lastLen - 1]) {
var lastPts = [];
lastPts.push(verbs[0][0]);
lastPts.push(verbs[0][1]);
verbs.push(lastPts);
}
contours.push(verbs);
}
}
if (contours.length > 0) {
tests.push(contours);
testTitles.push(title);
}
}
function parseRect(test, title) {
var contours = [];
var rectStrs = test.split("path.addRect");
var pattern = /-?\d+\.*\d*/g;
for (var r in rectStrs) {
var rect = rectStrs[r];
var sideStrs = rect.match(pattern);
var sides = [];
for (var wd in sideStrs) {
var num = parseFloat(sideStrs[wd]);
if (isNaN(num)) continue;
sides.push(num);
}
if (sides.length == 0)
continue;
var verbs = [];
var topLeft = [];
topLeft.push(sides[0]); topLeft.push(sides[1]);
var topRight = [];
topRight.push(sides[2]); topRight.push(sides[1]);
var botLeft = [];
botLeft.push(sides[0]); botLeft.push(sides[3]);
var botRight = [];
botRight.push(sides[2]); botRight.push(sides[3]);
verbs.push(topLeft);
if (sides[4] == 0) {
verbs.push(topRight);
verbs.push(botRight);
verbs.push(botLeft);
} else {
verbs.push(botLeft);
verbs.push(botRight);
verbs.push(topRight);
}
verbs.push(topLeft);
contours.push(verbs);
}
if (contours.length > 0) {
tests.push(contours);
testTitles.push(title);
}
}
function init(test) {
var canvas = document.getElementById('canvas');
if (!canvas.getContext) return;
canvas.width = window.innerWidth - at_x;
canvas.height = window.innerHeight - at_y;
ctx = canvas.getContext('2d');
var xmin = Infinity;
var xmax = -Infinity;
var ymin = Infinity;
var ymax = -Infinity;
for (var contours in test) {
var contour = test[contours];
for (var verbs in contour) {
var verb = contour[verbs];
var last = verb.length;
for (var idx = 0; idx < last; idx += 2) {
xmin = Math.min(xmin, verb[idx]);
xmax = Math.max(xmax, verb[idx]);
ymin = Math.min(ymin, verb[idx + 1]);
ymax = Math.max(ymax, verb[idx + 1]);
}
}
}
var subscale = 1;
while ((xmax - xmin) * subscale < 0.1 && (ymax - ymin) * subscale < 0.1) {
subscale *= 10;
}
columns = Math.ceil(xmax) - Math.floor(xmin) + 1;
rows = Math.ceil(ymax) - Math.floor(ymin) + 1;
xStart = Math.floor(xmin);
yStart = Math.floor(ymin);
var hscale = ctx.canvas.width / columns / ticks;
var vscale = ctx.canvas.height / rows / ticks;
scale = Math.floor(Math.min(hscale, vscale)) * subscale;
}
function drawPoint(px, py, xoffset, yoffset, unit) {
var label = px.toFixed(3) + ", " + py.toFixed(3);
var _px = px * unit + xoffset;
var _py = py * unit + yoffset;
ctx.beginPath();
ctx.arc(_px, _py, 3, 0, Math.PI*2, true);
ctx.closePath();
ctx.fill();
ctx.fillText(label, _px + 5, _py);
}
function draw(test, title, _at_x, _at_y, scale) {
ctx.fillStyle = "rgba(0,0,0, 0.1)";
ctx.font = "normal 50px Arial";
ctx.fillText(title, 50, 50);
ctx.font = "normal 10px Arial";
var unit = scale * ticks;
ctx.lineWidth = 1;
var i;
for (i = 0; i <= rows * ticks; ++i) {
ctx.strokeStyle = (i % ticks) != 0 ? "rgb(160,160,160)" : "black";
ctx.beginPath();
ctx.moveTo(_at_x + 0, _at_y + i * scale);
ctx.lineTo(_at_x + unit * columns, _at_y + i * scale);
ctx.stroke();
}
for (i = 0; i <= columns * ticks; ++i) {
ctx.strokeStyle = (i % ticks) != 0 ? "rgb(160,160,160)" : "black";
ctx.beginPath();
ctx.moveTo(_at_x + i * scale, _at_y + 0);
ctx.lineTo(_at_x + i * scale, _at_y + unit * rows);
ctx.stroke();
}
var xoffset = xStart * -unit + _at_x;
var yoffset = yStart * -unit + _at_y;
ctx.fillStyle = "rgb(40,80,60)"
for (i = 0; i <= columns; i += (1 / ticks))
{
num = (xoffset - _at_x) / -unit + i;
ctx.fillText(num.toFixed(0), i * unit + _at_y - 5, 10);
}
for (i = 0; i <= rows; i += (1 / ticks))
{
num = (yoffset - _at_x) / -unit + i;
ctx.fillText(num.toFixed(0), 0, i * unit + _at_y + 0);
}
ctx.strokeStyle = "red";
var contours, verbs, pts;
ctx.beginPath();
for (contours in test) {
var contour = test[contours];
if (contours == 2) ctx.strokeStyle = "blue";
var first = true;
for (verbs in contour) {
var verb = contour[verbs];
switch (verb.length) {
case 2:
if (first) {
ctx.moveTo(xoffset + verb[0] * unit, yoffset + verb[1] * unit);
first = false;
} else
ctx.lineTo(xoffset + verb[0] * unit, yoffset + verb[1] * unit);
break;
case 4:
ctx.quadraticCurveTo(xoffset + verb[0] * unit, yoffset + verb[1] * unit,
xoffset + verb[2] * unit, yoffset + verb[3] * unit);
break;
case 6:
ctx.bezierCurveTo(xoffset + verb[0] * unit, yoffset + verb[1] * unit,
xoffset + verb[2] * unit, yoffset + verb[3] * unit,
xoffset + verb[4] * unit, yoffset + verb[5] * unit);
break;
}
}
ctx.closePath();
}
ctx.stroke();
ctx.fillStyle="rgba(192,192,255, 0.3)";
ctx.fill();
ctx.fillStyle="blue";
for (contours in test) {
var contour = test[contours];
for (verbs in contour) {
var verb = contour[verbs];
for (i = 0; i < verb.length; i += 2) {
x = verb[i];
y = verb[i + 1];
drawPoint(x, y, xoffset, yoffset, unit);
}
}
}
}
var mouseX = Infinity, mouseY;
function calcXY() {
var e = window.event;
var tgt = e.target || e.srcElement;
var left = tgt.offsetLeft;
var top = tgt.offsetTop;
var unit = scale * ticks;
mouseX = (e.clientX - left - Math.ceil(at_x) + 1) / unit + xStart;
mouseY = (e.clientY - top - Math.ceil(at_y)) / unit + yStart;
}
function handleMouseOver() {
calcXY();
var num = mouseX.toFixed(3) + ", " + mouseY.toFixed(3);
ctx.beginPath();
ctx.rect(300,100,200,10);
ctx.fillStyle="white";
ctx.fill();
ctx.fillStyle="black";
ctx.fillText(num, 300, 108);
}
function handleMouseClick() {
calcXY();
// drawInset();
}
function drawTop() {
init(tests[testIndex]);
redraw();
}
function redraw() {
ctx.beginPath();
ctx.rect(0, 0, ctx.canvas.width, ctx.canvas.height);
ctx.fillStyle="white";
ctx.fill();
draw(tests[testIndex], testTitles[testIndex], at_x, at_y, scale);
// if (insetScale != scale && mouseX != Infinity)
// drawInset();
}
function doKeyPress(evt) {
var char = String.fromCharCode(evt.charCode);
switch (char) {
case 'N':
testIndex += 9;
case 'n':
if (++testIndex >= tests.length)
testIndex = 0;
mouseX = Infinity;
drawTop();
break;
case 'P':
testIndex -= 9;
case 'p':
if (--testIndex < 0)
testIndex = tests.length - 1;
mouseX = Infinity;
drawTop();
break;
case 'T':
case 't':
break;
case '-':
drawTop();
break;
case '=':
case '+':
drawTop();
break;
}
}
function doResize(evt) {
drawTop();
}
function start() {
for (i = 0; i < testDivs.length; ++i) {
var title = testDivs[i].id.toString();
var str = testDivs[i].firstChild.data;
if (str.split("addRect").length > 1) {
parseRect(str, title);
} else {
parse(str, title);
}
}
drawTop();
window.addEventListener('keypress', doKeyPress, true);
window.onresize = function() {
drawTop();
}
}
</script>
</head>
<body onLoad="start();">
<canvas id="canvas" width="750" height="500"
onmousemove="handleMouseOver()"
onclick="handleMouseClick()"
></canvas >
</body>
</html>