"Unknown element graphml:Geometry" error when parsing y:Geometry

Question

Hi,

I'm trying to import a GraphML file with node position information in yEd:

<?xml version="1.0" encoding="UTF-8"?>

<graphml xmlns="http://graphml.graphdrawing.org/xmlns"

 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

 xmlns:y="http://www.yworks.com/xml/graphml"

 xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns

   http://www.yworks.com/xml/schema/graphml/1.1/ygraphml.xsd">

 

  <key for="node" id="key0" yfiles.type="nodegraphics"/>

  <key for="node" id="key1" attr.name="description" attr.type="string"/>

 

  <graph id="G" edgedefault="directed">

    <node id="root">

      <data key="key0">

        <y:Geometry height="30.0" width="30.0" x="0.000000" y="-60.000000"/>

        <y:ShapeNode>

          <y:NodeLabel>root</y:NodeLabel>

        </y:ShapeNode>

      </data>

      <data key="key1"><![CDATA[Some text]></data>

    </node>

    <node id="C1-1">

      <data key="key0">

        <y:Geometry height="30.0" width="30.0" x="60.000000" y="0.000000"/>

        <y:ShapeNode>

          <y:NodeLabel>C1-1[1,3]</y:NodeLabel>

        </y:ShapeNode>

      </data>

    </node>

    <edge id="Eroot-C1-1" source="root" target="C1-1" />

    <node id="C0-1">

      <data key="key0">

        <y:Geometry height="30.0" width="30.0" x="60.000000" y="60.000000"/>

        <y:ShapeNode>

          <y:NodeLabel>C0-1[]</y:NodeLabel>

        </y:ShapeNode>

      </data>

    </node>

    <edge id="EC1-1-C0-1" source="C1-1" target="C0-1" />

    <node id="C3-1">

      <data key="key0">

        <y:Geometry height="30.0" width="30.0" x="60.000000" y="120.000000"/>

        <y:ShapeNode>

          <y:NodeLabel>C3-3[2]</y:NodeLabel>

        </y:ShapeNode>

      </data>

    </node>

    <edge id="EC0-1-C3-1" source="C0-1" target="C3-1" />

    <node id="C2-1">

      <data key="key0">

        <y:Geometry height="30.0" width="30.0" x="60.000000" y="180.000000"/>

        <y:ShapeNode>

          <y:NodeLabel>C2-2[]</y:NodeLabel>

        </y:ShapeNode>

      </data>

    </node>

    <edge id="EC3-1-C2-1" source="C3-1" target="C2-1" />

  </graph>

</graphml>

When I open it, I get the following error:

Using FallbackNodeRealizerSerializer for unknown element http://www.yworks.com/xml/graphml:Geometry

and the imported graph seems to have lost most of the information from the file.

If I remove the `y:Geometry` elements the file is imported without errors.

How are node positions specified in yEd's GraphML?

Thanks

 

Answer 1

The <y:Geometry> element has to be a child element of the <y:ShapeNode> element. E.g.:

...
  <y:ShapeNode>
    <y:Geometry height="..." width="..." x="100.0" y="100.0"/>
    ...
  </y:ShapeNode>
...