lwcollection_make_geos_friendly()

LWGEOM * lwcollection_make_geos_friendly

(

LWCOLLECTION *

g

)

Definition at line 297 of file liblwgeom/lwgeom_geos_clean.c.

References LWCOLLECTION::bbox, free(), LWCOLLECTION::geoms, lwalloc(), lwgeom_make_geos_friendly(), LWCOLLECTION::maxgeoms, and LWCOLLECTION::ngeoms.

Referenced by LWGEOM_GEOS_getPointN(), and lwgeom_make_geos_friendly().

{
        LWGEOM **new_geoms;
        uint32_t i, new_ngeoms=0;
        LWCOLLECTION *ret;

        /* enough space for all components */
        new_geoms = lwalloc(sizeof(LWGEOM *)*g->ngeoms);

        ret = lwalloc(sizeof(LWCOLLECTION));
        memcpy(ret, g, sizeof(LWCOLLECTION));
    ret->maxgeoms = g->ngeoms;

        for (i=0; i<g->ngeoms; i++)
        {
                LWGEOM* newg = lwgeom_make_geos_friendly(g->geoms[i]);
                if ( newg ) new_geoms[new_ngeoms++] = newg;
        }

        ret->bbox = NULL; /* recompute later... */

        ret->ngeoms = new_ngeoms;
        if ( new_ngeoms )
        {
                ret->geoms = new_geoms;
        }
        else
        {
                free(new_geoms);
                ret->geoms = NULL;
        ret->maxgeoms = 0;
        }

        return (LWGEOM*)ret;
}

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