examples/axis/grid.py

   1 from math import pi
   2 from pyx import *
   3 from pyx.graph import axis
   4
   5 xgridpainter = axis.painter.regular(gridattrs=[])
   6 ygridpainter = axis.painter.regular(gridattrs=[attr.changelist([style.linestyle.dashed, None])])
   7
   8 g = graph.graphxy(width=10,
   9                   x=axis.lin(painter=xgridpainter,
  10                              divisor=pi, texter=axis.texter.rational(suffix=r"\pi"), min=-4*pi, max=4*pi),
  11                   y=axis.lin(painter=ygridpainter))
  12
  13 g.plot(graph.data.function("y(x)=sin(x)/x", points=200))
  14
  15 g.writeEPSfile()
  16 g.writePDFfile()