Rational Design Management currently provides an XML document that has similar information that we are considering for the Diagram resource.
An example of this document is given here:
<?xml version="1.0" encoding="UTF-8"?>
<parts>
<shape view="https://rory:9444/dm/models/1" name="Element 1" x="71" y="103" width="225" height="96"/>
<shape view="https://rory:9444/dm/models/1" name="Element 2" x="422" y="263" width="248" height="95"/>
<line view="https://rory:9444/dm/models/2" name="Relationship 1">
<point x="180" y="195"/>
<point x="195" y="195"/>
<point x="248" y="295"/>
<point x="423" y="295"/>
<point x="423" y="308"/>
<point x="240" y="308"/>
<point x="180" y="195"/>
</line>
</parts>
