BezierCurve.py 文件源码

def sample(self, N=100):
        """Compute N points of the Bezier curve. Returns two lists, containing the x and y coordinates."""
        def p(t, coord):
            n = len(coord)
            res = 0
            for k in range(n):
                res += coord[k] * binom(n - 1, k) * t ** k * (1 - t) ** (n - 1 - k)
            return (res)

        x = [p(t / N, self.controlPoints_x) for t in range(N)]
        y = [p(t / N, self.controlPoints_y) for t in range(N)]
        return x, y