lw_dist2d_distribute_fast()

int lw_dist2d_distribute_fast	(	LWGEOM *	lwg1,
		LWGEOM *	lwg2,
		DISTPTS *	dl
	)

Geometries are distributed for the new faster distance-calculations.

Definition at line 538 of file measures.c.

{
        POINTARRAY *pa1, *pa2;
        int type1 = lwg1->type;
        int type2 = lwg2->type;
 
        LWDEBUGF(2, "lw_dist2d_distribute_fast is called with typ1=%d, type2=%d", lwg1->type, lwg2->type);
 
        switch (type1)
        {
        case LINETYPE:
                pa1 = ((LWLINE *)lwg1)->points;
                break;
        case POLYGONTYPE:
                pa1 = ((LWPOLY *)lwg1)->rings[0];
                break;
        case TRIANGLETYPE:
                pa1 = ((LWTRIANGLE *)lwg1)->points;
                break;
        default:
                lwerror("Unsupported geometry1 type: %s", lwtype_name(type1));
                return LW_FALSE;
        }
        switch (type2)
        {
        case LINETYPE:
                pa2 = ((LWLINE *)lwg2)->points;
                break;
        case POLYGONTYPE:
                pa2 = ((LWPOLY *)lwg2)->rings[0];
                break;
        case TRIANGLETYPE:
                pa2 = ((LWTRIANGLE *)lwg2)->points;
                break;
        default:
                lwerror("Unsupported geometry2 type: %s", lwtype_name(type1));
                return LW_FALSE;
        }
        dl->twisted = 1;
        return lw_dist2d_fast_ptarray_ptarray(pa1, pa2, dl, lwg1->bbox, lwg2->bbox);
}

References LWGEOM::bbox, LINETYPE, lw_dist2d_fast_ptarray_ptarray(), LW_FALSE, LWDEBUGF, lwerror(), lwtype_name(), POLYGONTYPE, TRIANGLETYPE, DISTPTS::twisted, and LWGEOM::type.

Referenced by lw_dist2d_recursive().

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