ST_AddEdgeNewFaces

Name

ST_AddEdgeNewFaces — Add a new edge and, if in doing so it splits a face, delete the original face and replace it with two new faces.

Synopsis

integer ST_AddEdgeNewFaces ( varchar atopology , integer anode , integer anothernode , geometry acurve ) ;

Description

Add a new edge and, if in doing so it splits a face, delete the original face and replace it with two new faces. Returns the id of the newly added edge.

Updates all existing joined edges and relationships accordingly.

If any arguments are null, the given nodes are unknown (must already exist in the node table of the topology schema) , the acurve is not a LINESTRING , the anode and anothernode are not the start and endpoints of acurve then an error is thrown.

If the spatial reference system (srid) of the acurve geometry is not the same as the topology an exception is thrown.

Availability: 2.0

This method implements the SQL/MM specification. SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.12

Examples