SDO_TOPO_MAP.GET_NODE_COORD

Format

SDO_TOPO_MAP.GET_NODE_COORD(
  topology  IN VARCHAR2,
  topo_map  IN VARCHAR2,
  node_id   IN NUMBER
) RETURN SDO_GEOMETRY;

Description

Returns an SDO_GEOMETRY object with the coordinates of the specified node.

Parameters

topology

Name of the topology that contains the node, or a null value, as explained in Using GET_xxx Topology Functions. Must not exceed 20 characters.

topo_map

Name of the TopoMap object, or a null value, as explained in Using GET_xxx Topology Functions. (TopoMap objects are explained in TopoMap Objects.)

node_id

Node ID value of the node.

Usage Notes

The topology or topo_map parameter should specify a valid name, as explained in Using GET_xxx Topology Functions.

This function is equivalent to using the getNodeCoord method of the TopoMap class of the client-side Java API (described in Topology Data Model Java Interface).

Examples

The following example returns a geometry object with the coordinates of the node whose node ID value is 14. (The example refers to definitions and data from Topology Built from Topology Data.)

SELECT SDO_TOPO_MAP.GET_NODE_COORD(null, 'CITY_DATA_TOPOMAP', 14) FROM DUAL;

SDO_TOPO_MAP.GET_NODE_COORD(NULL,'CITY_DATA_TOPOMAP',14)(SDO_GTYPE, SDO_SRID, SD
--------------------------------------------------------------------------------
SDO_GEOMETRY(2001, 0, SDO_POINT_TYPE(21, 14, NULL), NULL, NULL)