GraphML

GraphML is an XML-based file format for graphs.

Introduction to GraphML

Here is what a simple undirected graph with 2 nodes and one edge between them looks like: <source lang="xml"> <?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">
 <graph id="G" edgedefault="undirected">
   <node id="n0"/>
   <node id="n1"/>
   <edge id="e1" source="n0" target="n1"/>
 </graph>

</graphml> </source>

Other Graph File Formats

• GXL, graph exchange format based on XML -- GXL
• Trivial Graph Format, simple text based format
• GML is another widely used graph exchange format. -- GML

• XGMML an XML-based graph markup language closely related to GML -- XGMML
• Dot Language, a format for describing graphs and their presentation, for the Graphviz set of tools.

See also

• XML
• Scalable Vector Graphics (SVG) is an XML-based graphics format.

External links

• http://graphml.graphdrawing.org/ homepage of GraphML
• http://graphml.graphdrawing.org/primer/graphml-primer.html An easy introduction to GraphML is the GraphML Primer.
• http://www.svgopen.org/2003/papers/ComparisonXML2SVGTransformationMechanisms/ Comparison between XML to SVG Transformation Mechanisms