Пример #1
0
        /// <summary>
        /// Does this ray intersect with the provided face?
        /// </summary>
        /// <param name="face">The Face to intersect with.</param>
        /// <param name="result">The intersection result.</param>
        /// <returns>True if an intersection occurs, otherwise false. If true, check the intersection result for the location of the intersection.</returns>
        internal bool Intersects(Face face, out Vector3 result)
        {
            var plane = face.Plane();

            if (Intersects(plane, out Vector3 intersection))
            {
                var boundaryPolygon      = face.Outer.ToPolygon();
                var transformToPolygon   = new Transform(plane.Origin, plane.Normal);
                var transformFromPolygon = new Transform(transformToPolygon);
                transformFromPolygon.Invert();
                var transformedPolygon      = transformFromPolygon.OfPolygon(boundaryPolygon);
                var transformedIntersection = transformFromPolygon.OfVector(intersection);
                if (transformedPolygon.Contains(transformedIntersection) || transformedPolygon.Touches(transformedIntersection))
                {
                    result = intersection;
                    return(true);
                }
            }
            result = default(Vector3);
            return(false);
        }