lw_dist3d_point_tri()

int lw_dist3d_point_tri	(	LWPOINT *	point,
		LWTRIANGLE *	tri,
		DISTPTS3D *	dl
	)

Definition at line 767 of file measures3d.c.

{
        POINT3DZ p, projp; /*projp is "point projected on plane"*/
        PLANE3D plane;
        getPoint3dz_p(point->point, 0, &p);
 
        /* If we are looking for max distance, longestline or dfullywithin */
        if (dl->mode == DIST_MAX)
                return lw_dist3d_pt_ptarray(&p, tri->points, dl);
 
        /* If triangle does not define a plane, treat it as a line */
        if (!define_plane(tri->points, &plane))
                return lw_dist3d_pt_ptarray(&p, tri->points, dl);
 
        /* Get our point projected on the plane of triangle */
        project_point_on_plane(&p, &plane, &projp);
 
        return lw_dist3d_pt_tri(&p, tri, &plane, &projp, dl);
}

References define_plane(), DIST_MAX, getPoint3dz_p(), lw_dist3d_pt_ptarray(), lw_dist3d_pt_tri(), DISTPTS3D::mode, LWPOINT::point, LWTRIANGLE::points, and project_point_on_plane().

Referenced by lw_dist3d_distribute_bruteforce().

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