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write_graph(+Graph, +File, +Format, +Options)

Write a picture of a graph as a file of a given format
Graph
A graph structure
File
A file name
Format
An atom (ps,dot,png,gif,...)
Options
A list of Option:Value pairs

Description

This predicate takes a graph, applies one of the graphviz layout routines to it, and writes the result to a file is a given format.

Possible options are as specified in view_graph/2.

Some possible formats are: ps, dot, png, gif, ... See the graphviz documentation for details.

Examples

    ?- lib(graph_algorithms), lib(graphviz).
    Yes (1.17s cpu)

    ?- make_random_graph(10,30,true,true,true,G),
       write_graph(G, "mygraph", png).
    G = graph(...)
    Yes (0.03s cpu)

    ?- make_random_graph(10,30,true,true,true,G),
       write_graph(G, "mygraph", dot).
    G = graph(...)
    Yes (0.03s cpu)

See Also

write_graph / 2, write_graph / 3, view_graph / 2, library(graph_algorithms)