Connect_neighbour
network-functions connect_neighbour
syntax
- connect_neighbour(point_dataitem)
- connect_neighbour(point_dataitem, relation)
definition
The connect_neighbour(point_dataitem) results in relation for and towards the domain-unit of the point_dataitem, referring to the nearest point in the point_dataitem not being the point itself.
The connect_neighbour function(point_geom, partioning) results in relation for and towards the domain unit of the point_dataitem, referring to the nearest point in the point_dataitem not being the point itself and being a point within the relation.
description
The connect_neighbour is a special variant of the first variant of the connect function.
The connect(point_dataitem, point_dataitem) function results in a relation to the nearest point, usually the same point. The connect_neighbour function results in the relation to the nearest point, not being the same point.
applies to
- data-item point_dataitem with Point value-type.
conditions
The domain-unit of arguments point_dataitem and relation must match.
since version
7.047
example
attribute<origin> origin_rel (origin) := connect_neighbour(origin/geometry);
| origin/geometry | origin_rel |
|---|---|
| {401331, 115135} | 2 |
| {399476, 111803} | 4 |
| {399289, 114903} | 0 |
| {401729, 111353} | 1 |
| {398696, 111741} | 1 |
domain origin, nr of rows = 5