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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 (dot,gv,eps,gif,jpg,pdf,png,svg,...)
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:

dot,gv,xdot: Graphviz own formats
eps: Encapsulated Postscript
gif: GIF bitmaps
jpg: JPEG compressed images
pdf: PDF Portable Document Format
plain: A human-readable representation
png: PNG (Portable Network Graphics)
svg: SVG Scalable Vector Graphics

Many of these formats can be displayed by web browsers or by dedicated viewers. See the graphviz documentation for details and additional formats.

Modules

This predicate is sensitive to its module context (tool predicate, see @/2).

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)

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

Description

Modules

Examples

See Also