SaveGViz (SWIG)

SaveGViz(Graph, OutFNm, Desc, NodeLabels, NIdColorH)

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.

• NodeLabels: bool (input)

  Indicates whether to show the node labels.

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

  Maps node ids to node colors (see GraphViz documentation for more details).

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

H = snap.TIntStrH()
H.AddDat(1, "blue")
H.AddDat(2, "blue")
H.AddDat(3, "red")
H.AddDat(4, "red")

Graph = snap.GenRndGnm(snap.PNGraph, 4, 6)
snap.SaveGViz(Graph, "Graph1.dot", "Directed Random Graph", True, H)

UGraph = snap.GenRndGnm(snap.PUNGraph, 4, 6)
snap.SaveGViz(UGraph, "Graph2.dot", "Undirected Random Graph", True, H)

Network = snap.GenRndGnm(snap.PNEANet, 4, 6)
snap.SaveGViz(Network, "Graph3.dot", "Directed Random Network with Attributes", True, H)