manual/pathstyles.py

   1 #!/usr/bin/env python
   2 import sys
   3 sys.path[:0] = [".."]
   4 from pyx import *
   5
   6 text.set(mode="latex")
   7 text.preamble(r"\renewcommand{\familydefault}{\ttdefault}")
   8 c = canvas.canvas()
   9
  10 # positioning is quite ugly ... but it works at the moment
  11 x = 0
  12 y = 0
  13 dx = 6
  14 dy = -0.65
  15 length = 0.8
  16
  17 def drawstyle(name, showpath=0, default=0):
  18     global x,y
  19     p = path.path(path.moveto(x + 0.1, y+0.1 ),
  20                        path.rlineto(length/2.0, 0.3),
  21                        path.rlineto(length/2.0, -0.3))
  22     c.stroke(p, [style.linewidth.THIck,  eval("style."+name)])
  23     if showpath:
  24         c.stroke(p, [style.linewidth.Thin, color.gray.white])
  25     if default:
  26         name = name + r"\rm\quad (default)"
  27     c.text(x + 1.5, y + 0.15, name, [text.size.footnotesize])
  28     y += dy
  29     if y < -16:
  30         y = 0
  31         x += dx
  32
  33
  34 drawstyle("linecap.butt", showpath=1, default=1)
  35 drawstyle("linecap.round", showpath=1)
  36 drawstyle("linecap.square", showpath=1)
  37
  38 y += dy
  39
  40 drawstyle("linejoin.miter", showpath=1, default=1)
  41 drawstyle("linejoin.round", showpath=1)
  42 drawstyle("linejoin.bevel", showpath=1)
  43
  44 y += dy
  45
  46 drawstyle("linestyle.solid", default=1)
  47 drawstyle("linestyle.dashed")
  48 drawstyle("linestyle.dotted")
  49 drawstyle("linestyle.dashdotted")
  50
  51 y += dy
  52
  53 drawstyle("linewidth.THIN")
  54 drawstyle("linewidth.THIn")
  55 drawstyle("linewidth.THin")
  56 drawstyle("linewidth.Thin")
  57 drawstyle("linewidth.thin")
  58 drawstyle("linewidth.normal", default=1)
  59 drawstyle("linewidth.thick")
  60 drawstyle("linewidth.Thick")
  61 drawstyle("linewidth.THick")
  62 drawstyle("linewidth.THIck")
  63 drawstyle("linewidth.THICk")
  64 drawstyle("linewidth.THICK")
  65
  66 drawstyle("miterlimit.lessthan180deg", showpath=1)
  67 drawstyle("miterlimit.lessthan90deg", showpath=1)
  68 drawstyle("miterlimit.lessthan60deg", showpath=1)
  69 drawstyle("miterlimit.lessthan45deg", showpath=1)
  70 drawstyle("miterlimit.lessthan11deg", showpath=1, default=1)
  71
  72 y += dy
  73
  74 drawstyle("dash((1, 1, 2, 2, 3, 3), 0)")
  75 drawstyle("dash((1, 1, 2, 2, 3, 3), 1)")
  76 drawstyle("dash((1, 2, 3), 2)")
  77 drawstyle("dash((1, 2, 3), 3)")
  78 drawstyle("dash((1, 2, 3), 4)")
  79 drawstyle("dash((1, 2, 3), rellengths=1)")
  80
  81
  82 c.writeEPSfile("pathstyles")
  83 c.writePDFfile("pathstyles")