lwgeom_to_gml2()

lwvarlena_t* lwgeom_to_gml2	(	const LWGEOM *	geom,
		const char *	srs,
		int	precision,
		const char *	prefix
	)

Definition at line 920 of file lwout_gml.c.

{
        stringbuffer_t sb;
 
        /* Initialize options */
        GML_Options gmlopts;
        memset(&gmlopts, 0, sizeof(gmlopts));
        gmlopts.srs = srs;
        gmlopts.precision = precision;
        gmlopts.prefix = prefix;
 
        /* Return null for empty (#1377) */
        if (lwgeom_is_empty(geom))
                return NULL;
 
        stringbuffer_init_varlena(&sb);
 
        switch (geom->type)
        {
        case POINTTYPE:
                asgml2_point(&sb, (LWPOINT*)geom, &gmlopts);
                break;
 
        case LINETYPE:
                asgml2_line(&sb, (LWLINE*)geom, &gmlopts);
                break;
 
        case POLYGONTYPE:
                asgml2_poly(&sb, (LWPOLY*)geom, &gmlopts);
                break;
 
        case MULTIPOINTTYPE:
        case MULTILINETYPE:
        case MULTIPOLYGONTYPE:
                asgml2_multi(&sb, (LWCOLLECTION*)geom, &gmlopts);
                break;
 
        case COLLECTIONTYPE:
                asgml2_collection(&sb, (LWCOLLECTION*)geom, &gmlopts);
                break;
 
        case TRIANGLETYPE:
        case POLYHEDRALSURFACETYPE:
        case TINTYPE:
                lwerror("Cannot convert %s to GML2. Try ST_AsGML(3, <geometry>) to generate GML3.", lwtype_name(geom->type));
                stringbuffer_release(&sb);
                return NULL;
 
        default:
                lwerror("lwgeom_to_gml2: '%s' geometry type not supported", lwtype_name(geom->type));
                stringbuffer_release(&sb);
                return NULL;
        }
 
        return stringbuffer_getvarlena(&sb);
}

References asgml2_collection(), asgml2_line(), asgml2_multi(), asgml2_point(), asgml2_poly(), COLLECTIONTYPE, LINETYPE, lwerror(), lwgeom_is_empty(), lwtype_name(), MULTILINETYPE, MULTIPOINTTYPE, MULTIPOLYGONTYPE, POINTTYPE, POLYGONTYPE, POLYHEDRALSURFACETYPE, precision, GML_Options::precision, GML_Options::prefix, GML_Options::srs, stringbuffer_getvarlena(), stringbuffer_init_varlena(), stringbuffer_release(), TINTYPE, TRIANGLETYPE, LWGEOM::type, and LWPOINT::type.

Referenced by do_gml2_test(), do_gml2_test_prefix(), do_gml2_unsupported(), geography_as_gml(), and LWGEOM_asGML().

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