examples/circles.py

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