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Intersect a polygon and a ray

@type poly_points: List
@param poly_points: The list of points in the polygon

@type p1: Vector
@param p1: The starting point of the ray

@type p2: Vector
@param p2: The ending point of the ray(more...)

src/p/y/Py2D-HEAD/py2d/FOV.py   Py2D(Download)
			# intersect visible point with obstructors and boundary polygon
			intersections = set(py2d.Math.intersect_linesegs_ray(obs_segs, eye, c) + py2d.Math.intersect_poly_ray(boundary.points, eye, c))
			intersections = [ip for ip in intersections if ip != c and boundary.contains_point(ip)]