updateTopoGeomEdgeSplit

int(* LWT_BE_CALLBACKS_T::updateTopoGeomEdgeSplit) (const LWT_BE_TOPOLOGY *topo, LWT_ELEMID split_edge, LWT_ELEMID new_edge1, LWT_ELEMID new_edge2)

Update TopoGeometry objects after an edge split event.

Parameters

topo	the topology to act upon
split_edge	identifier of the edge that was split.
new_edge1	identifier of the first new edge that was created as a result of edge splitting.
new_edge2	identifier of the second new edge that was created as a result of edge splitting, or -1 if the old edge was modified rather than replaced.

Returns

1 on success, 0 on error

Note

on splitting an edge, the new edges both have the same direction as the original one. If a second new edge was created, its start node will be equal to the first new edge end node.

Definition at line 414 of file liblwgeom_topo.h.