test/functional/test_arrow.py

   1 #!/usr/bin/env python
   2 import sys; sys.path[:0] = ["../.."]
   3
   4 import pyx
   5 from pyx import *
   6 from pyx.path import *
   7 import math
   8
   9 def testarrow(c):
  10     c.stroke(path(moveto(10,20),
  11                 curveto(12,16,14,15,12,19),
  12                 rcurveto(-3,2,3,3,-2,4)),
  13            canvas.barrow.small, canvas.earrow.normal)
  14
  15     c.stroke(path(arc(8,15,4,10,70)), canvas.barrow.small, canvas.earrow.normal)
  16     c.stroke(path(arc(8,15,3,10,70)), canvas.barrow.small, canvas.earrow.normal)
  17     c.stroke(path(arc(8,15,2,10,70)), canvas.barrow.small, canvas.earrow.normal)
  18     c.stroke(path(arc(8,15,1,10,70)), canvas.barrow.small, canvas.earrow.normal)
  19     c.stroke(path(arc(8,15,0.5,10,70)), canvas.barrow.small, canvas.earrow.normal)
  20
  21     base = 2
  22
  23     c.stroke(path(moveto(5,10), rlineto(5,0)),
  24            canvas.barrow("%f t pt" % (base/math.sqrt(8)), constriction=None),
  25            canvas.earrow.SMall)
  26     c.stroke(path(moveto(5,10.5), rlineto(5,0)),
  27            canvas.barrow("%f t pt" % (base/math.sqrt(4)), constriction=None),
  28            canvas.earrow.Small)
  29     c.stroke(path(moveto(5,11), rlineto(5,0)),
  30            canvas.barrow("%f t pt" % (base/math.sqrt(2)), constriction=None),
  31            canvas.earrow.small)
  32     c.stroke(path(moveto(5,11.5), rlineto(5,0)),
  33            canvas.barrow("%f t pt" % (base/math.sqrt(1)), constriction=None),
  34            canvas.earrow.normal)
  35     c.stroke(path(moveto(5,12), rlineto(5,0)),
  36            canvas.barrow("%f t pt" % (base*math.sqrt(2)), constriction=None),
  37            canvas.earrow.large)
  38     c.stroke(path(moveto(5,12.5), rlineto(5,0)),
  39            canvas.barrow("%f t pt" % (base*math.sqrt(4)), constriction=None),
  40            canvas.earrow.Large)
  41     c.stroke(path(moveto(5,13), rlineto(5,0)),
  42            canvas.barrow("%f t pt" % (base*math.sqrt(8)), constriction=None),
  43            canvas.earrow.LArge)
  44     c.stroke(path(moveto(5,13.5), rlineto(5,0)),
  45            canvas.barrow("%f t pt" % (base*math.sqrt(16)), constriction=None),
  46            canvas.earrow.LARge)
  47
  48     lt = canvas.linewidth.THick
  49
  50     c.stroke(path(moveto(11,10), rlineto(5,0)),
  51            lt,
  52            canvas.barrow("%f t pt" % (base/math.sqrt(8)), constriction=None),
  53            canvas.earrow.SMall)
  54     c.stroke(path(moveto(11,10.5), rlineto(5,0)),
  55            lt,
  56            canvas.barrow("%f t pt" % (base/math.sqrt(4)), constriction=None),
  57            canvas.earrow.Small)
  58     c.stroke(path(moveto(11,11), rlineto(5,0)),
  59            lt,
  60            canvas.barrow("%f t pt" % (base/math.sqrt(2)), constriction=None),
  61            canvas.earrow.small)
  62     c.stroke(path(moveto(11,11.5), rlineto(5,0)),
  63            lt,
  64            canvas.barrow("%f t pt" % (base/math.sqrt(1)), constriction=None),
  65            canvas.earrow.normal)
  66     c.stroke(path(moveto(11,12), rlineto(5,0)),
  67            lt,
  68            canvas.barrow("%f t pt" % (base*math.sqrt(2)), constriction=None),
  69            canvas.earrow.large)
  70     c.stroke(path(moveto(11,12.5), rlineto(5,0)),
  71            lt,
  72            canvas.barrow("%f t pt" % (base*math.sqrt(4)), constriction=None),
  73            canvas.earrow.Large)
  74     c.stroke(path(moveto(11,13), rlineto(5,0)),
  75            lt,
  76            canvas.barrow("%f t pt" % (base*math.sqrt(8)), constriction=None),
  77            canvas.earrow.LArge(canvas.linestyle.dashed, color.rgb.green))
  78     c.stroke(path(moveto(11,13.5), rlineto(5,0)),
  79            lt,
  80            canvas.barrow("%f t pt" % (base*math.sqrt(16)), constriction=None),
  81            canvas.earrow.LARge(color.rgb.red,
  82                                canvas.stroked(canvas.linejoin.round),
  83                                canvas.filled(color.rgb.blue)))
  84
  85
  86
  87 c=canvas.canvas()
  88 testarrow(c)
  89 c.writetofile("test_arrow", paperformat="a4", rotated=0, fittosize=1)
  90