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<title>How to Visualise a Model Space?</title>
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<h2>How to Visualise a Model Space?</h2>
<p>In order to visualise a model space it has to be opened (if you are unsure
how to do this there is a tutorial in the <a
href="http://wiki.eclipse.org/VIATRA2/Basics">VIATRA wiki</a> web page).</p>
<h2>Adding elements to the graph view</h2>
<p>To create the graph the model elements used in the graph have to be chosen.
This can happen by right-clicking an element, and selecting the <strong>Add
Selected Subtree to the Graph View</strong> menu item.</p>
<div class="image">
<img src="images/addsubtree.png">
<p>Selecting the subtree to add</p>
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<img src="images/graph.png">
<p>The visualised subtree</p>
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<p>After the selection happened in a short time the graph appear in the
<strong>Model Space Visualisation</strong> view (and the view opens if it was
not open).</p>
<p></p>
<p><strong>Warning!</strong> If a lot of model elements are selected for
inclusion, the addition process can hang the computer/Eclipse instance for
quite a lot of time. To avoid this it is not recommended to select more than a
few dozens of model elements.</p>
<p></p>
<p>For more details related to adding model elements to the graph view see: <a
href="handling.html#elementselect">Selecting Model Elements</a>.</p>
<h2>Using the Graph View</h2>
<p>It is possible to alter the graph output after it is created. With the help
of the mouse the nodes can be moved anywhere in the view, thus manually
correcting the layout.</p>
<p>In the view pulldown menu there are further options to select an automatic
layout, hide some relationships, etc. These are described in detail in <a
href="handling.html#view">View Related Settings</a>.</p>
<p>It is also possible to save the created graph as a PNG image using the view
dropdown menu.</p>
<p>For more details related to customizing the graph view see: <a
href="handling.html#view">View Related Settings</a> and <a
href="configuration.html">Configuration</a>.</p>
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