examples/axis/texter.py

   1 import math
   2 from pyx import *
   3 from pyx.graph import axis
   4
   5 texter1 = axis.texter.decimal(plus="+", minus="-", equalprecision=1)
   6 texter2 = axis.texter.rational()
   7
   8 class piaxis(axis.linear):
   9
  10     def __init__(self, divisor=math.pi,
  11                  texter=axis.texter.rational(suffix="\pi"), **kwargs):
  12         axis.linear.__init__(self, divisor=divisor, texter=texter, **kwargs)
  13
  14 p1 = path.path(path.moveto(0, 0), path.curveto(3, 0, 1, 4, 4, 4))
  15 p2 = p1.transformed(trafo.translate(4, 0))
  16 p3 = p2.transformed(trafo.translate(4, 0))
  17 p4 = p3.transformed(trafo.translate(4, 0))
  18
  19 c = canvas.canvas()
  20 c.insert(axis.pathaxis(p1, axis.linear(min=0, max=1e2)))
  21 c.insert(axis.pathaxis(p2, axis.linear(min=-0.7, max=0.4, texter=texter1)))
  22 c.insert(axis.pathaxis(p3, axis.linear(min=-0.7, max=0.4, texter=texter2)))
  23 c.insert(axis.pathaxis(p4, piaxis(min=0, max=2*math.pi)))
  24 c.writeEPSfile("texter")
  25 c.writePDFfile("texter")
  26 c.writeSVGfile("texter")