gbox_expand_xyzm()

void gbox_expand_xyzm ( GBOX *  g, double  dx, double  dy, double  dz, double  dm  )

extern

Move the box minimums down and the maximums up by the distances provided.

Definition at line 115 of file gbox.c.

{
        g->xmin -= dx;
        g->xmax += dx;
        g->ymin -= dy;
        g->ymax += dy;
 
        if (FLAGS_GET_Z(g->flags))
        {
                g->zmin -= dz;
                g->zmax += dz;
        }
 
        if (FLAGS_GET_M(g->flags))
        {
                g->mmin -= dm;
                g->mmax += dm;
        }
}

References GBOX::flags, FLAGS_GET_M, FLAGS_GET_Z, GBOX::mmax, GBOX::mmin, GBOX::xmax, GBOX::xmin, GBOX::ymax, GBOX::ymin, GBOX::zmax, and GBOX::zmin.

Referenced by BOX2D_expand(), and LWGEOM_expand().

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