lwpoly_construct_envelope()

LWPOLY* lwpoly_construct_envelope	(	int	srid,
		double	x1,
		double	y1,
		double	x2,
		double	y2
	)

Definition at line 98 of file lwpoly.c.

References lwgeom_add_bbox(), lwgeom_set_srid(), lwpoly_as_lwgeom(), lwpoly_construct_rectangle(), POINT4D::x, and POINT4D::y.

Referenced by mvt_geom(), and ST_MakeEnvelope().

{
        POINT4D p1, p2, p3, p4;
        LWPOLY *poly;

        p1.x = x1;
        p1.y = y1;
        p2.x = x1;
        p2.y = y2;
        p3.x = x2;
        p3.y = y2;
        p4.x = x2;
        p4.y = y1;

        poly = lwpoly_construct_rectangle(0, 0, &p1, &p2, &p3, &p4);
        lwgeom_set_srid(lwpoly_as_lwgeom(poly), srid);
        lwgeom_add_bbox(lwpoly_as_lwgeom(poly));

        return poly;
}

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