| /* This file is part of hp2ps, a graph drawer for memory profiles. |
| Copyright (C) 2002 The University Court of the University of Glasgow. |
| This program is governed by the license contained in the file LICENSE. */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include "Main.h" |
| #include "Curves.h" |
| #include "Defines.h" |
| #include "Dimensions.h" |
| #include "HpFile.h" |
| #include "Utilities.h" |
| |
| /* own stuff */ |
| #include "Axes.h" |
| |
| typedef enum {MEGABYTE, KILOBYTE, BYTE} mkb; |
| |
| static void XAxis PROTO((void)); /* forward */ |
| static void YAxis PROTO((void)); /* forward */ |
| |
| static void XAxisMark PROTO((floatish, floatish)); /* forward */ |
| static void YAxisMark PROTO((floatish, floatish, mkb)); /* forward */ |
| |
| static floatish Round PROTO((floatish)); /* forward */ |
| |
| void |
| Axes() |
| { |
| XAxis(); |
| YAxis(); |
| } |
| |
| static void |
| XAxisMark(x, num) |
| floatish x; floatish num; |
| { |
| /* calibration mark */ |
| fprintf(psfp, "%f %f moveto\n", xpage(x), ypage(0.0)); |
| fprintf(psfp, "0 -4 rlineto\n"); |
| fprintf(psfp, "stroke\n"); |
| |
| /* number */ |
| fprintf(psfp, "HE%d setfont\n", NORMAL_FONT); |
| fprintf(psfp, "(%.1f)\n", num); |
| fprintf(psfp, "dup stringwidth pop\n"); |
| fprintf(psfp, "2 div\n"); |
| fprintf(psfp, "%f exch sub\n", xpage(x)); |
| fprintf(psfp, "%f moveto\n", borderspace); |
| fprintf(psfp, "show\n"); |
| } |
| |
| |
| #define N_X_MARKS 7 |
| #define XFUDGE 15 |
| |
| extern floatish xrange; |
| extern char *sampleunitstring; |
| |
| static void |
| XAxis() |
| { |
| floatish increment, i; |
| floatish t, x; |
| floatish legendlen; |
| |
| /* draw the x axis line */ |
| fprintf(psfp, "%f %f moveto\n", xpage(0.0), ypage(0.0)); |
| fprintf(psfp, "%f 0 rlineto\n", graphwidth); |
| fprintf(psfp, "%f setlinewidth\n", borderthick); |
| fprintf(psfp, "stroke\n"); |
| |
| /* draw x axis legend */ |
| fprintf(psfp, "HE%d setfont\n", NORMAL_FONT); |
| fprintf(psfp, "(%s)\n", sampleunitstring); |
| fprintf(psfp, "dup stringwidth pop\n"); |
| fprintf(psfp, "%f\n", xpage(0.0) + graphwidth); |
| fprintf(psfp, "exch sub\n"); |
| fprintf(psfp, "%f moveto\n", borderspace); |
| fprintf(psfp, "show\n"); |
| |
| |
| /* draw x axis scaling */ |
| |
| increment = Round(xrange / (floatish) N_X_MARKS); |
| |
| t = graphwidth / xrange; |
| legendlen = StringSize(sampleunitstring) + (floatish) XFUDGE; |
| |
| for (i = samplemap[0]; i < samplemap[nsamples - 1]; i += increment) { |
| x = (i - samplemap[0]) * t; |
| |
| if (x < (graphwidth - legendlen)) { |
| XAxisMark(x,i); |
| } |
| } |
| } |
| |
| static void |
| YAxisMark(y, num, unit) |
| floatish y; floatish num; mkb unit; |
| { |
| /* calibration mark */ |
| fprintf(psfp, "%f %f moveto\n", xpage(0.0), ypage(y)); |
| fprintf(psfp, "-4 0 rlineto\n"); |
| fprintf(psfp, "stroke\n"); |
| |
| /* number */ |
| fprintf(psfp, "HE%d setfont\n", NORMAL_FONT); |
| |
| switch (unit) { |
| case MEGABYTE : |
| fprintf(psfp, "("); |
| CommaPrint(psfp, (intish) (num / 1e6 + 0.5)); |
| fprintf(psfp, "M)\n"); |
| break; |
| case KILOBYTE : |
| fprintf(psfp, "("); |
| CommaPrint(psfp, (intish) (num / 1e3 + 0.5)); |
| fprintf(psfp, "k)\n"); |
| break; |
| case BYTE: |
| fprintf(psfp, "("); |
| CommaPrint(psfp, (intish) (num + 0.5)); |
| fprintf(psfp, ")\n"); |
| break; |
| } |
| |
| fprintf(psfp, "dup stringwidth\n"); |
| fprintf(psfp, "2 div\n"); |
| fprintf(psfp, "%f exch sub\n", ypage(y)); |
| |
| fprintf(psfp, "exch\n"); |
| fprintf(psfp, "%f exch sub\n", graphx0 - borderspace); |
| |
| fprintf(psfp, "exch\n"); |
| fprintf(psfp, "moveto\n"); |
| fprintf(psfp, "show\n"); |
| } |
| |
| #define N_Y_MARKS 7 |
| #define YFUDGE 15 |
| |
| extern floatish yrange; |
| extern char *valueunitstring; |
| |
| static void |
| YAxis() |
| { |
| floatish increment, i; |
| floatish t, y; |
| floatish legendlen; |
| mkb unit; |
| |
| /* draw the y axis line */ |
| fprintf(psfp, "%f %f moveto\n", xpage(0.0), ypage(0.0)); |
| fprintf(psfp, "0 %f rlineto\n", graphheight); |
| fprintf(psfp, "%f setlinewidth\n", borderthick); |
| fprintf(psfp, "stroke\n"); |
| |
| /* draw y axis legend */ |
| fprintf(psfp, "gsave\n"); |
| fprintf(psfp, "HE%d setfont\n", NORMAL_FONT); |
| fprintf(psfp, "(%s)\n", valueunitstring); |
| fprintf(psfp, "dup stringwidth pop\n"); |
| fprintf(psfp, "%f\n", ypage(0.0) + graphheight); |
| fprintf(psfp, "exch sub\n"); |
| fprintf(psfp, "%f exch\n", xpage(0.0) - borderspace); |
| fprintf(psfp, "translate\n"); |
| fprintf(psfp, "90 rotate\n"); |
| fprintf(psfp, "0 0 moveto\n"); |
| fprintf(psfp, "show\n"); |
| fprintf(psfp, "grestore\n"); |
| |
| /* draw y axis scaling */ |
| increment = max( yrange / (floatish) N_Y_MARKS, 1.0); |
| increment = Round(increment); |
| |
| if (increment >= 1e6) { |
| unit = MEGABYTE; |
| } else if (increment >= 1e3) { |
| unit = KILOBYTE; |
| } else { |
| unit = BYTE; |
| } |
| |
| t = graphheight / yrange; |
| legendlen = StringSize(valueunitstring) + (floatish) YFUDGE; |
| |
| for (i = 0.0; i <= yrange; i += increment) { |
| y = i * t; |
| |
| if (y < (graphheight - legendlen)) { |
| YAxisMark(y, i, unit); |
| } |
| } |
| } |
| |
| |
| /* |
| * Find a "nice round" value to use on the axis. |
| */ |
| |
| static floatish OneTwoFive PROTO((floatish)); /* forward */ |
| |
| static floatish |
| Round(y) |
| floatish y; |
| { |
| int i; |
| |
| if (y > 10.0) { |
| for (i = 0; y > 10.0; y /= 10.0, i++) ; |
| y = OneTwoFive(y); |
| for ( ; i > 0; y = y * 10.0, i--) ; |
| |
| } else if (y < 1.0) { |
| for (i = 0; y < 1.0; y *= 10.0, i++) ; |
| y = OneTwoFive(y); |
| for ( ; i > 0; y = y / 10.0, i--) ; |
| |
| } else { |
| y = OneTwoFive(y); |
| } |
| |
| return (y); |
| } |
| |
| |
| /* |
| * OneTwoFive() -- Runciman's 1,2,5 scaling rule. Argument 1.0 <= y <= 10.0. |
| */ |
| |
| static floatish |
| OneTwoFive(y) |
| floatish y; |
| { |
| if (y > 4.0) { |
| return (5.0); |
| } else if (y > 1.0) { |
| return (2.0); |
| } else { |
| return (1.0); |
| } |
| } |