gallery/graphs/piaxis.py

   1 from math import pi
   2 from pyx import *
   3 from pyx.graph import axis
   4
   5 g = graph.graphxy(width=8, key=graph.key.key(pos="bl"),
   6         x=axis.linear(min=0, max=2*pi, title="$x$", divisor=pi,
   7                            texter=axis.texter.rational(suffix=r"\pi")),
   8         y=axis.linear(title="$y$"))
   9
  10 g.plot(graph.data.function("y(x)=sin(x)", title=r"$\sin(x)$"))
  11 g.plot(graph.data.function("y(x)=cos(x)", title=r"$\cos(x)$"))
  12
  13 g.finish()
  14 g.stroke(g.ygridpath(0))
  15
  16 g.writeEPSfile("piaxis")
  17 g.writePDFfile("piaxis")