Connected_parts

network-functions connected_parts

syntax

  • connected_parts(F1, F2)

definition

The connected_parts function is used to find out how many connected (sub)networks exist in a set of links

connected_parts(F1, F2) results in a new domain-unit with a as subitem the attribute: Partnr.

The arguments F1 and F2 are the relation towards the the first and last node of a link set.

The Partnr item contains the relation towards the connected network(s).

Each value indicates a group of connected nodes. If all Partnr values are zero, the network is fully connected.

applies to

data-item F1 and F2 with uint32 value-type

conditions

The domain units of argument F1 and F2 must match.

example

unit<uint32> connected_parts := connected_parts(F1, F2);
F1 F2
8 7
1 4
16 15
2 3
5 4
6 7
9 10
12 11
14 15
18 20
19 17
3 0
4 11
7 1
10 3
11 13
13 17
15 10
20 21
17 20

domain linkset, nr of rows = 19

PartNr
0
1
0
0
1
1
1
1
1
0
0
1
1
1
0
0
0
1
1
1
1
1

domain nodeSet, nr of rows = 21