lwgeom_is_simple()

int lwgeom_is_simple

(

const LWGEOM *

lwgeom

)

Definition at line 1246 of file liblwgeom/lwgeom_geos.c.

{
        GEOSGeometry* g;
        int simple;
 
        /* Empty is always simple */
        if (lwgeom_is_empty(geom)) return LW_TRUE;
 
        initGEOS(lwnotice, lwgeom_geos_error);
 
        if (!(g = LWGEOM2GEOS(geom, AUTOFIX))) return -1;
 
        simple = GEOSisSimple(g);
        GEOSGeom_destroy(g);
 
        if (simple == 2) /* exception thrown */
        {
                lwerror("lwgeom_is_simple: %s", lwgeom_geos_errmsg);
                return -1;
        }
 
        return simple ? LW_TRUE : LW_FALSE;
}

References AUTOFIX, LW_FALSE, LW_TRUE, lwerror(), LWGEOM2GEOS(), lwgeom_geos_errmsg, lwgeom_geos_error(), lwgeom_is_empty(), and lwnotice().

Referenced by _lwt_AddEdge(), issimple(), lwt_AddIsoEdge(), and lwt_ChangeEdgeGeom().

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