ST_ChangeEdgeGeom
Name
ST_ChangeEdgeGeom — Changes the shape of an edge without affecting the topology structure.
Synopsis
integer
ST_ChangeEdgeGeom
(
varchar
atopology
, integer
anedge
, geometry
acurve
)
;
Description
Changes the shape of an edge without affecting the topology structure.
If any arguments are null, the given edge does not exist in
the
edge
table of the topology schema, the
acurve
is not a
LINESTRING
, or the modification would
change the underlying topology 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.
If the new
acurve
is not simple, then an error is thrown.
If moving the edge from old to new position would hit an obstacle then an error is thrown.
Availability: 1.1.0
Enhanced: 2.0.0 adds topological consistency enforcement
This method implements the SQL/MM specification.
SQL-MM: Topo-Geo and Topo-Net 3: Routine Details X.3.6