Nous commençons par apprendre à utiliser SVG sur Python.
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  1. from __future__ import division # we need floating division
  2. from svg.path import Path, Line, Arc, CubicBezier, QuadraticBezier, parse_path
  3. import pygame
  4. """ demo of using a great python module svg.path by Lennart Regebro
  5. see site: https://pypi.org/project/svg.path/
  6. to draw svg in pygame
  7. """
  8. from svg.path import Path, Line, Arc, CubicBezier, QuadraticBezier, parse_path
  9. svgpath = """m 76,232.24998 c 81.57846,-49.53502 158.19366,-20.30271 216,27 61.26714,
  10. 59.36905 79.86223,123.38417 9,156
  11. -80.84947,31.72743 -125.19991,-53.11474 -118,-91 v 0 """
  12. path = parse_path(svgpath)
  13. # svg.path point method returns a complex number p, p.real and p.imag can pull the x, and y
  14. # # on 0.0 to 1.0 along path, represent percent of distance along path
  15. n = 100 # number of line segments to draw
  16. # pts = []
  17. # for i in range(0,n+1):
  18. # f = i/n # will go from 0.0 to 1.0
  19. # complex_point = path.point(f) # path.point(t) returns point at 0.0 <= f <= 1.0
  20. # pts.append((complex_point.real, complex_point.imag))
  21. # list comprehension version or loop above
  22. pts = [ (p.real,p.imag) for p in (path.point(i/n) for i in range(0, n+1))]
  23. pygame.init() # init pygame
  24. surface = pygame.display.set_mode((700,600)) # get surface to draw on
  25. surface.fill(pygame.Color('white')) # set background to white
  26. pygame.draw.aalines( surface,pygame.Color('blue'), False, pts) # False is no closing
  27. pygame.display.update() # copy surface to display
  28. while True: # loop to wait till window close
  29. for event in pygame.event.get():
  30. if event.type == pygame.QUIT:
  31. exit()