SDO_NET.GET_PT

Format

SDO_NET.GET_PT(
  network     IN VARCHAR2,
  link_id     IN NUMBER,
  percentage  IN NUMBER
) RETURN SDO_GEOMETRY;

Description

Returns the point geometry that is a specified percentage of the distance along a link’s line string geometry.

Parameters

network

Network name.

link_id

ID number of the link for which to return the point geometry at the specified percentage distance.

percentage

Percentage value as a decimal fraction between 0 and 1. For example, 0.25 is 25 percent.

Usage Notes

To find the percentage along a link geometry for a specified point, use the SDO_NET.GET_PERCENTAGE function.

Examples

The following example returns the point geometry that is 25 percent of the distance from the start node along the geometry associated with the link whose link ID is 101 in the network named ROADS_NETWORK.

SELECT SDO_NET.GET_PT('ROADS_NETWORK', 101, 0.25) FROM DUAL;

SDO_NET.GET_PT('ROADS_NETWORK',101,0.25)(SDO_GTYPE, SDO_SRID, SDO_POINT(X, Y, Z)
--------------------------------------------------------------------------------
SDO_GEOMETRY(2001, NULL, SDO_POINT_TYPE(2, 2.5, NULL), NULL, NULL)