getEdgeById

LWT_ISO_EDGE*(* LWT_BE_CALLBACKS_T::getEdgeById) (const LWT_BE_TOPOLOGY *topo, const LWT_ELEMID *ids, int *numelems, int fields)

Get edge by id.

Parameters

topo	the topology to act upon
ids	an array of element identifiers
numelems	input/output parameter, pass number of edge identifiers in the input array, gets number of edges in output array if the return is not null, otherwise see

Returns

section for semantic.

Parameters

fields

fields to be filled in the returned structure, see LWT_COL_EDGE_* macros

Returns

an array of edges or NULL in the following cases:

• none found ("numelems" is set to 0)
• error ("numelems" is set to -1)

Definition at line 270 of file liblwgeom_topo.h.