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Connected parts

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Network functions connected_parts

Contents

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 relations 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 items F1 and F2 with uint32 value type

conditions

The domain units of arguments F1 and F2 must match.

since version

5.15

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

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