使用Turtle库绘制示例如下：
from turtle import Turtle, mainloop from time import perf_counter as clock # wrapper for any additional drawing routines # that need to know about each other class Designer(Turtle): def design(self, homePos, scale): self.up() for i in range(5): self.forward(64.65 * scale) self.down() self.wheel(self.position(), scale) self.up() self.backward(64.65 * scale) self.right(72) self.up() self.goto(homePos) self.right(36) self.forward(24.5 * scale) self.right(198) self.down() self.centerpiece(46 * scale, 143.4, scale) self.getscreen().tracer(True) def wheel(self, initpos, scale): self.right(54) for i in range(4): self.pentpiece(initpos, scale) self.down() self.left(36) for i in range(5): self.tripiece(initpos, scale) self.left(36) for i in range(5): self.down() self.right(72) self.forward(28 * scale) self.up() self.backward(28 * scale) self.left(54) self.getscreen().update() def tripiece(self, initpos, scale): oldh = self.heading() self.down() self.backward(2.5 * scale) self.tripolyr(31.5 * scale, scale) self.up() self.goto(initpos) self.setheading(oldh) self.down() self.backward(2.5 * scale) self.tripolyl(31.5 * scale, scale) self.up() self.goto(initpos) self.setheading(oldh) self.left(72) self.getscreen().update() def pentpiece(self, initpos, scale): oldh = self.heading() self.up() self.forward(29 * scale) self.down() for i in range(5): self.forward(18 * scale) self.right(72) self.pentr(18 * scale, 75, scale) self.up() self.goto(initpos) self.setheading(oldh) self.forward(29 * scale) self.down() for i in range(5): self.forward(18 * scale) self.right(72) self.pentl(18 * scale, 75, scale) self.up() self.goto(initpos) self.setheading(oldh) self.left(72) self.getscreen().update() def pentl(self, side, ang, scale): if side < (2 * scale): return self.forward(side) self.left(ang) self.pentl(side - (.38 * scale), ang, scale) def pentr(self, side, ang, scale): if side < (2 * scale): return self.forward(side) self.right(ang) self.pentr(side - (.38 * scale), ang, scale) def tripolyr(self, side, scale): if side < (4 * scale): return self.forward(side) self.right(111) self.forward(side / 1.78) self.right(111) self.forward(side / 1.3) self.right(146) self.tripolyr(side * .75, scale) def tripolyl(self, side, scale): if side < (4 * scale): return self.forward(side) self.left(111) self.forward(side / 1.78) self.left(111) self.forward(side / 1.3) self.left(146) self.tripolyl(side * .75, scale) def centerpiece(self, s, a, scale): self.forward(s); self.left(a) if s < (7.5 * scale): return self.centerpiece(s - (1.2 * scale), a, scale) def main(): t = Designer() t.speed(0) t.hideturtle() t.getscreen().delay(0) t.getscreen().tracer(0) at = clock() t.design(t.position(), 2) et = clock() return "runtime: %.2f sec." % (et-at) if __name__ == '__main__': msg = main() print(msg) mainloop()
运行结果如下:
