lw_dist3d_line_poly()

int lw_dist3d_line_poly	(	LWLINE *	line,
		LWPOLY *	poly,
		DISTPTS3D *	dl
	)

line to polygon calculation

Definition at line 668 of file measures3d.c.

References define_plane(), DIST_MAX, lw_dist3d_ptarray_poly(), lw_dist3d_ptarray_ptarray(), LWDEBUG, DISTPTS3D::mode, LWLINE::points, and LWPOLY::rings.

Referenced by lw_dist3d_distribute_bruteforce().

{
        PLANE3D plane;
        LWDEBUG(2, "lw_dist3d_line_poly is called");

        if (dl->mode == DIST_MAX)
        {
                return lw_dist3d_ptarray_ptarray(line->points, poly->rings[0], dl);
        }

        if(!define_plane(poly->rings[0], &plane))
        {
                /* Polygon does not define a plane: Return distance line to line */
                return lw_dist3d_ptarray_ptarray(line->points, poly->rings[0], dl);
        }

        return lw_dist3d_ptarray_poly(line->points, poly,&plane, dl);
}

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