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

conditions

The domain-unit of argument 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

see also