getNodeById

LWT_ISO_NODE*(* LWT_BE_CALLBACKS_T::getNodeById) (const LWT_BE_TOPOLOGY *topo, const LWT_ELEMID *ids, int *numelems, int fields)

Get nodes by id.

Parameters

topo	the topology to act upon
ids	an array of element identifiers
numelems	input/output parameter, pass number of node identifiers in the input array, gets number of node in output array.
fields	fields to be filled in the returned structure, see LWT_COL_NODE_* macros

Returns

an array of nodes or NULL in the following cases:

• no edge found ("numelems" is set to 0)
• error ("numelems" is set to -1) (

See also

lastErrorMessage)

Definition at line 201 of file liblwgeom_topo.h.