examples/splitgraphs/splitatvalue.py

   1 # You can use the splitatvalue function to split data at
   2 # certain values. When splitting at several positions, the
   3 # splitatvalue function marks odd regions to be a "None",
   4 # which will in the end be ignored by a splitaxis.
   5
   6 from pyx import *
   7
   8 pf = graph.data.paramfunction
   9
  10 g = graph.graphxy(width=8, x=graph.axis.split())
  11 g.plot(pf("k", -1, 1,
  12           "x, y = splitatvalue(k, -0.9, 0.9), k**100",
  13           points=1000))
  14 g.writeEPSfile("splitatvalue")
  15 g.writePDFfile("splitatvalue")