examples/graphs/join.py

   1 from pyx import *
   2
   3 g = graph.graphxy(width=8, key=graph.key.key())
   4
   5 As = [0.3, 0.6, 0.9]
   6
   7 d = [graph.data.join([graph.data.function("y_a(x_a)=A*sin(2*pi*x_a)", context=dict(A=A)),
   8                       graph.data.file("join.dat", x_b=1, y_b=i+2)],
   9                      title=r"$A=%g$" % A)
  10      for i, A in enumerate(As)]
  11
  12 attrs = [color.gradient.RedBlue]
  13
  14 g.plot(d,
  15        [graph.style.pos(usenames=dict(x="x_a", y="y_a")),
  16         graph.style.line(attrs),
  17         graph.style.pos(usenames=dict(x="x_b", y="y_b")),
  18         graph.style.symbol(graph.style.symbol.changesquare, symbolattrs=attrs, size=0.1)])
  19
  20 g.writeEPSfile()
  21 g.writePDFfile()
  22 g.writeSVGfile()