examples/circles.py

   1 from pyx import *
   2
   3 circ1 = path.normpath(path.circle(0, 0, 1)) # you don't really need normpath,
   4 circ2 = path.normpath(path.circle(1, 1, 1)) # but its better to have it once
   5                                             # for those operations
   6 (circ1a, circ1b), (circ2a, circ2b) = circ1.intersect(circ2)
   7 intersection = (circ1.split([circ1b, circ1a])[1]
   8                 << circ2.split([circ2a, circ2b])[1]
   9                 << path.closepath())
  10 union = (circ1.split([circ1b, circ1a])[0]
  11          << circ2.split([circ2a, circ2b])[0]
  12          << path.closepath())
  13
  14 c = canvas.canvas()
  15 c.fill(union, [color.rgb.blue])
  16 c.fill(intersection, [color.rgb.red])
  17 c.stroke(circ1)
  18 c.stroke(circ2)
  19 c.writetofile("circles")