lwpoly_construct_empty()

LWPOLY * lwpoly_construct_empty ( int32_t  srid, char  hasz, char  hasm  )

extern

Definition at line 161 of file lwpoly.c.

{
        LWPOLY *result = lwalloc(sizeof(LWPOLY));
        result->type = POLYGONTYPE;
        result->flags = lwflags(hasz,hasm,0);
        result->srid = srid;
        result->nrings = 0;
        result->maxrings = 1; /* Allocate room for ring, just in case. */
        result->rings = lwalloc(result->maxrings * sizeof(POINTARRAY*));
        result->bbox = NULL;
        return result;
}

References LWPOLY::bbox, LWPOLY::flags, lwalloc(), lwflags(), LWPOLY::maxrings, LWPOLY::nrings, POLYGONTYPE, LWPOLY::rings, LWPOLY::srid, and LWPOLY::type.

Referenced by _lwt_FaceByEdges(), buffer(), GeneratePolygonGeometry(), geography_centroid_from_mpoly(), GEOS2LWGEOM(), lwgeom_buildarea(), lwgeom_construct_empty(), lwgeom_filter_m(), lwgeom_segmentize_sphere(), lwpoly_chaikin(), lwpoly_clip_to_ordinate_range(), lwpoly_construct_circle(), lwpoly_construct_rectangle(), lwpoly_filterm(), lwpoly_force_dims(), lwpoly_from_twkb_state(), lwpoly_from_wkb_state(), lwpoly_set_effective_area(), lwt_GetFaceGeometry(), parse_geojson_poly_rings(), parse_gml_polygon(), SFCGAL2LWGEOM(), wkt_parser_polygon_finalize(), and wkt_parser_polygon_new().

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