examples/bargraphs/stacked.py

   1 # To stack bars on top of each other, you can add
   2 # stackedbarpos styles and and bars to the styles.
   3 # The stackbarpos need to get different column names
   4 # each time to access new stack data. This example
   5 # also adds text styles to the bars, which just
   6 # repeat the value column data here, but they could
   7 # refer to other columns as well.
   8
   9 from pyx import *
  10
  11 g = graph.graphxy(width=8, x=graph.axis.bar())
  12 g.plot(graph.data.file("bar.dat", xname=0, y=2, stack=3),
  13        [graph.style.bar(),
  14         graph.style.text("y"),
  15         graph.style.stackedbarpos("stack"),
  16         graph.style.bar([color.rgb.green]),
  17         graph.style.text("stack")])
  18 g.writeEPSfile("stacked")