| graph-easy - render/convert graphs in/from various formats |
graph-easy - render/convert graphs in/from various formats
Convert between graph formats and layout/render graphs:
graph-easy [options] [inputfile [outputfile]]
echo "[ Bonn ] - car -> [ Berlin ]" | graph-easy
graph-easy --input=graph.dot --as_ascii
graph-easy --html --output=mygraph.html graph.txt
graph-easy graph.txt graph.svg
graph-easy graph.txt --as_dot | dot -Tpng -o graph.png
graph-easy graph.txt --png
graph-easy graph.vcg --dot
graph-easy graph.dot --gdl
graph-easy graph.dot --graphml
Here are the most important options, more are listed in the full documentation:
graph-easy --input=input.txt
The format will be auto-detected, override it with --from.
graph-easy --output=output.txt input.txt
graph-easy --as=ascii input.txt
Valid formats are:
ascii ASCII art rendering
boxart Unicode Boxart rendering
html HTML
svg Scalable Vector Graphics
graphviz the DOT language
dot alias for "graphviz"
txt Graph::Easy text
vcg VCG (Visualizing Compiler Graphs - a subset of GDL) text
gdl GDL (Graph Description Language) text
graphml GraphML
In addition, the following formats are understood and piped through the program specified with the --renderer option (default: dot):
bmp Windows bitmap
gif GIF
hpgl HP-GL/2 vector graphic
jpg JPEG
pcl PCL printer language
pdf PDF
png PNG
ps Postscript
ps2 Postscript with PDF notations (see graphviz documentation)
tga Targa bitmap
tif TIFF bitmap
The default format will be determined by the output filename extension,
and is ascii, if the output filename was not set.
You can also use ONE argument of the form --as_ascii or --ascii.
graphviz the DOT language
txt Graph::Easy text
vcg VCG text
gdl GDL (Graph Description Language) text
If not specified, the input format is auto-detected.
You can also use ONE argument of the form --from_dot, etc.
png, jpg etc. Some choices are ``neato'', ``twopi'', ``fdp'' or ``circo''.
--debug=1 or --stats. Example:
graph-easy input.txt --parse --debug=1
--parse:
graph-easy input.txt --parse --stats
graph-easy input.txt --timeout=500
Conversion to DOT, VCG/GDL, GraphML or plain text ignores the timeout.
The default is 240 seconds (4 minutes).
graph-easy reads a description of a graph (a connected network of
nodes and edges, not a pie chart :-) and then converts this to the desired
output format.
By default, the input will be read from STDIN, and the output will go to STDOUT. The input is expected to be encoded in UTF-8, the output will also be UTF-8.
It understands the following formats as input:
Graph::Easy http://bloodgate.com/perl/graph/manual/
DOT http://www.graphviz.org/
VCG http://rw4.cs.uni-sb.de/~sander/html/gsvcg1.html
GDL http://www.aisee.com/
The formats are automatically detected, regardless of the input file name, but you can also explicitly declare your input to be in one specific format.
The output can be a dump of the graph in one of the following formats:
Graph::Easy http://bloodgate.com/perl/graph/manual/
DOT http://www.graphviz.org/
VCG http://rw4.cs.uni-sb.de/~sander/html/gsvcg1.html
GDL http://www.aisee.com/
GraphML http://graphml.graphdrawing.org/
In addition, Graph::Easy can also create layouts of graphs in
one of the following output formats:
HTML SVG ASCII BOXART
Note that for SVG output, you need to install the module the Graph::Easy::As_svg manpage first.
As a shortcut, you can also specify the output format as 'png', this will
cause graph-easy to pipe the input in graphviz format to the dot program
to create a PNG file in one step. The following two examples are equivalent:
graph-easy graph.txt --dot | dot -Tpng -o graph.png
graph-easy graph.txt --png
graph-easy supports a few more arguments in addition to the ones from above:
graph-easy input.txt --output=test.html --debug=1
echo "[ Bonn ] -- car --> [ Berlin ], [ Ulm ]" | graph-easy
+--------+ car +-----+
| Bonn | -----> | Ulm |
+--------+ +-----+
|
| car
v
+--------+
| Berlin |
+--------+
echo "[ Bonn ] -- car --> [ Berlin ], [ Ulm ]" | graph-easy --dot
digraph GRAPH_0 {
edge [ arrowhead=open ];
graph [ rankdir=LR ];
node [
fontsize=11,
fillcolor=white,
style=filled,
shape=box ];
Bonn -> Ulm [ label=car ]
Bonn -> Berlin [ label=car ]
}
echo "[ Bonn ] -- car --> [ Berlin ], [ Ulm ]" | graph-easy --vcg
graph: {
title: "Untitled graph"
node: { title: "Berlin" }
node: { title: "Bonn" }
node: { title: "Ulm" }
edge: { label: "car" sourcename: "Bonn" targetname: "Ulm" }
edge: { label: "car" sourcename: "Bonn" targetname: "Berlin" }
}
GDL (Graph Description Language) is a superset of VCG, and thus the output will look almost the same as VCG:
echo "[ Bonn ] -- car --> [ Berlin ], [ Ulm ]" | graph-easy --gdl
graph: {
title: "Untitled graph"
node: { title: "Berlin" }
node: { title: "Bonn" }
node: { title: "Ulm" }
edge: { label: "car" source: "Bonn" target: "Ulm" }
edge: { label: "car" source: "Bonn" target: "Berlin" }
}
GraphML is XML:
echo "[ Bonn ] -- car --> [ Berlin ], [ Ulm ]" | graph-easy --graphml
<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns
http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd">
<!-- Created by Graph::Easy v0.58 at Mon Aug 20 00:01:25 2007 -->
<key id="d0" for="edge" attr.name="label" attr.type="string"/>
<graph id="G" edgedefault="directed">
<node id="Berlin">
</node>
<node id="Bonn">
</node>
<node id="Ulm">
</node>
<edge source="Bonn" target="Berlin">
<data key="d0">car</data>
</edge>
<edge source="Bonn" target="Ulm">
<data key="d0">car</data>
</edge>
</graph>
<graphml>
Please note that it is impossible to convert 100% from one format to another format since every graph language out there has features that are unique to only this language.
In addition, the conversion process always converts the input first into an the Graph::Easy manpage graph, and then to the desired output format.
This means that only features and attributes that are actually valid in Graph::Easy are supported yet. Work in making Graph::Easy an universal format supporting as much as possible is still in progress.
Attributes that are not yet supported natively by Graph::Easy are converted
to custom attributes with a prefixed x-format-, f.i. x-dot-. Upon output
to the same format, these are converted back, but conversion to a different
format will lose these attributes.
For a list of what problems still remain, please see the TODO
file in the Graph::Easy distribution on CPAN:
http://search.cpan.org/~tels/Graph-Easy/
If you notice anything wrong, or miss attributes, please file a bug report on
http://rt.cpan.org/NoAuth/ReportBug.html
so we can fix it and include the missing things into Graph::Easy!
This library is free software; you can redistribute it and/or modify it under the terms of the GPL.
See the LICENSE file of Graph::Easy for a copy of the GPL.
This product includes color specifications and designs developed by Cynthia Brewer (http://colorbrewer.org/). See the LICENSE file for the full license text that applies to these color schemes.
Copyright (C) 2004 - 2008 by Tels http://bloodgate.com
More information can be found in the online manual of Graph::Easy:
http://bloodgate.com/perl/graph/manual/
See also: the Graph::Easy manpage, the Graph::Easy::Manual manpage
| graph-easy - render/convert graphs in/from various formats |