libpysal.cg.get_point_at_angle_and_dist¶
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libpysal.cg.
get_point_at_angle_and_dist
(ray, angle, dist)[source]¶ Returns the point at a distance and angle relative to the origin of a ray.
get_point_at_angle_and_dist(Ray, number, number) -> Point
- Parameters
- raythe ray which the angle and distance are relative to
- anglethe angle relative to the ray at which the point is located
- distthe distance from the ray origin at which the point is located
Examples
>>> ray = Ray(Point((0, 0)), Point((1, 0))) >>> pt = get_point_at_angle_and_dist(ray, math.pi, 1.0) >>> isinstance(pt, Point) True >>> round(pt[0], 8) -1.0 >>> round(pt[1], 8) 0.0