lwcollection_clone()

LWCOLLECTION* lwcollection_clone

(

const LWCOLLECTION *

g

)

Clone LWCOLLECTION object.

POINTARRAY are not copied. Bbox is cloned if present in input.

Definition at line 125 of file lwcollection.c.

{
        uint32_t i;
        LWCOLLECTION *ret = lwalloc(sizeof(LWCOLLECTION));
        memcpy(ret, g, sizeof(LWCOLLECTION));
        if ( g->ngeoms > 0 )
        {
                ret->geoms = lwalloc(sizeof(LWGEOM *)*g->ngeoms);
                for (i=0; i<g->ngeoms; i++)
                {
                        ret->geoms[i] = lwgeom_clone(g->geoms[i]);
                }
                if ( g->bbox ) ret->bbox = gbox_copy(g->bbox);
        }
        else
        {
                ret->bbox = NULL; /* empty collection */
                ret->geoms = NULL;
        }
        return ret;
}

References LWCOLLECTION::bbox, gbox_copy(), LWCOLLECTION::geoms, lwalloc(), lwgeom_clone(), and LWCOLLECTION::ngeoms.

Referenced by lwcollection_segmentize2d(), and lwgeom_clone().

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