lwgeom_normalize()

LWGEOM* lwgeom_normalize

(

const LWGEOM *

geom

)

Definition at line 561 of file liblwgeom/lwgeom_geos.c.

References LWGEOM::flags, FLAGS_GET_Z, GEOS2LWGEOM(), lwerror(), LWGEOM2GEOS(), lwgeom_geos_errmsg, lwgeom_geos_error(), lwnotice(), and LWGEOM::srid.

Referenced by ST_Normalize(), and test_lwgeom_delaunay_triangulation().

{
        LWGEOM *result ;
        GEOSGeometry *g1;
        int is3d ;
        int srid ;

        srid = (int)(geom1->srid);
        is3d = FLAGS_GET_Z(geom1->flags);

        initGEOS(lwnotice, lwgeom_geos_error);

        g1 = LWGEOM2GEOS(geom1, 0);
        if ( 0 == g1 )   /* exception thrown at construction */
        {
                lwerror("First argument geometry could not be converted to GEOS: %s", lwgeom_geos_errmsg);
                return NULL ;
        }

        if ( -1 == GEOSNormalize(g1) )
        {
          lwerror("Error in GEOSNormalize: %s", lwgeom_geos_errmsg);
                return NULL; /* never get here */
        }

        GEOSSetSRID(g1, srid); /* needed ? */
        result = GEOS2LWGEOM(g1, is3d);
        GEOSGeom_destroy(g1);

        if (result == NULL)
        {
                lwerror("Error performing intersection: GEOS2LWGEOM: %s", lwgeom_geos_errmsg);
                return NULL ; /* never get here */
        }

        return result ;
}

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