box3d_transform()

int box3d_transform	(	GBOX *	box,
		LWPROJ *	pj
	)

Definition at line 209 of file liblwgeom/lwgeom_transform.c.

{
        POINT4D pt;
        POINTARRAY *pa = ptarray_construct(0, 0, 4);
        pt = (POINT4D){gbox->xmin, gbox->ymin, 0, 0};
        ptarray_set_point4d(pa, 0, &pt);
 
        pt = (POINT4D){gbox->xmax, gbox->ymin, 0, 0};
        ptarray_set_point4d(pa, 1, &pt);
 
        pt = (POINT4D){gbox->xmax, gbox->ymax, 0, 0};
        ptarray_set_point4d(pa, 2, &pt);
 
        pt = (POINT4D){gbox->xmin, gbox->ymax, 0, 0};
        ptarray_set_point4d(pa, 3, &pt);
 
        ptarray_transform(pa, pj);
        return ptarray_calculate_gbox_cartesian(pa, gbox);
}

References ptarray_calculate_gbox_cartesian(), ptarray_construct(), ptarray_set_point4d(), ptarray_transform(), GBOX::xmax, GBOX::xmin, GBOX::ymax, and GBOX::ymin.

Referenced by srs_find_planar().

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