SaveGViz

SaveGViz(Graph, OutFNm, Desc, NIdLabelH)

Saves Graph to the .DOT file format used by GraphViz. Use ”.dot” as file extension for OutFNm.

Parameters:

• Graph: graph (input)

  A Snap.py graph or a network.

• OutFNm: string (input)

  Name of the output file.

• Desc: string (input)

  Description of the Graph.

• NIdLabelH: TIntStrH, a hash table with int keys and string values (input)

  Maps node ids to node string labels.

Return value:

• None

For more info about Graph Viz see: http://www.graphviz.org.

The following example shows how to save graphs of types TNGraph, TUNGraph, and TNEANet for GraphViz:

import snap

Graph = snap.TNGraph.New()
Graph.AddNode(1)
Graph.AddNode(2)
Graph.AddEdge(1, 2)
NIdLabelH = snap.TIntStrH()
NIdLabelH.AddDat(1, "one")
NIdLabelH.AddDat(2, "two")
snap.SaveGViz(Graph, "graph1.dot", "Graph file", NIdLabelH)

UGraph = snap.TUNGraph.New()
UGraph.AddNode(1)
UGraph.AddNode(2)
UGraph.AddEdge(1, 2)
NIdLabelH = snap.TIntStrH()
NIdLabelH.AddDat(1, "one")
NIdLabelH.AddDat(2, "two")
snap.SaveGViz(UGraph, "graph2.dot", "Graph file", NIdLabelH)

Network = snap.TNEANet.New()
Network.AddNode(1)
Network.AddNode(2)
Network.AddEdge(1, 2)
NIdLabelH = snap.TIntStrH()
NIdLabelH.AddDat(1, "one")
NIdLabelH.AddDat(2, "two")
snap.SaveGViz(Network, "graph3.dot", "Graph file", NIdLabelH)