lw_dist2d_tri_tri()

int lw_dist2d_tri_tri	(	LWTRIANGLE *	tri1,
		LWTRIANGLE *	tri2,
		DISTPTS *	dl
	)

Definition at line 813 of file measures.c.

{
        POINTARRAY *pa1 = tri1->points;
        POINTARRAY *pa2 = tri2->points;
        const POINT2D *pt = getPoint2d_cp(pa2, 0);
        if (dl->mode == DIST_MIN && ptarray_contains_point(pa1, pt) != LW_OUTSIDE)
        {
                dl->distance = 0.0;
                dl->p1.x = dl->p2.x = pt->x;
                dl->p1.y = dl->p2.y = pt->y;
                return LW_TRUE;
        }
 
        pt = getPoint2d_cp(pa1, 0);
        if (dl->mode == DIST_MIN && ptarray_contains_point(pa2, pt) != LW_OUTSIDE)
        {
                dl->distance = 0.0;
                dl->p1.x = dl->p2.x = pt->x;
                dl->p1.y = dl->p2.y = pt->y;
                return LW_TRUE;
        }
 
        return lw_dist2d_ptarray_ptarray(pa1, pa2, dl);
}

References DIST_MIN, DISTPTS::distance, getPoint2d_cp(), lw_dist2d_ptarray_ptarray(), LW_OUTSIDE, LW_TRUE, DISTPTS::mode, DISTPTS::p1, DISTPTS::p2, LWTRIANGLE::points, ptarray_contains_point(), POINT2D::x, and POINT2D::y.

Referenced by lw_dist2d_distribute_bruteforce().

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