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Graph::getEdgeDescriptions

Returns a table with the edge descriptions.

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Syntax

Graph::getEdgeDescriptions(G)

Description

Graph::getEdgeDescriptions(G) returns a table with the edge descriptions of the graph G. Thus Graph::getEdgeDescriptions(G) returns the weight of all edges in G.

Note

Descriptions will most probably only be defined, if transportation problems occur.

Note

If FAIL is returned, no descriptions were defined (this way both, network and graph algorithms handle this situation correct.)

Examples

Example 1

First lets define a graph without edge descriptions:

G1 := Graph::createCircleGraph(3):
Graph::getEdgeDescriptions(G1)

FAIL was returned, because no edge descriptions were defined.

Graph::getEdges(G1);
G1 := Graph::setEdgeDescriptions(G1, [[1, 2], [3, 1]], 
                                 ["Shortcut", "Highway 66"]):
Graph::getEdgeDescriptions(G1)

The first output shows all the edges and the second one the assigned edge descriptions.

Parameters

G

A graph

Return Values

Table

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