Hi,<br><br>The answer is here :  <a href="http://comments.gmane.org/gmane.comp.lib.vtk.user/30503">http://comments.gmane.org/gmane.comp.lib.vtk.user/30503</a>.<br><br>In your case, I think the second method described in the link is the best. So the main steps are the following:<br>
<br>For each graph :<br>- Built your  &quot;vtkGraphLayout&quot; (not &quot;vtkGraphLayoutViewer&quot; !!)<br>- Convert &quot;vtkGraphLayout&quot; into a &quot;vtkPolyData&quot; with &quot;vtkGraphPolyData&quot;<br>- Map your PolyData with &quot;vtkPolyDataMapper&quot;<br>
- Create your Actor with &quot;vtkActor&quot;<br><br><br>(In Fact, VtkGraphLayoutViewer does all these steps =&gt; it is faster, easier,... but not necessary better than your own &quot;work&quot;.<br>Maybe it is possible to  display two graphs side by side with a &quot;vtkGraphLayoutView&quot;, but i have not the answer.)<br>
<br>After, it&#39;s simple. You create 2 renders as in this example: <a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/SideBySideViewports" target="_blank">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/SideBySideViewports. </a>Then, you just add one graph per render. To Finish make a renderWindow, (and a renderWindowInteractor to interact with the scene if you want).<br>
<br>I didn&#39;t try myself, but i think it  works.<br><br>Best Regards,<br><br><div class="gmail_quote">2010/8/17 David Doria <span dir="ltr">&lt;<a href="mailto:daviddoria%2Bvtk@gmail.com">daviddoria+vtk@gmail.com</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Is it possible to display two graphs side by side with a<br>
vtkGraphLayoutView? Exactly like this:<br>
<a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/SideBySideViewports" target="_blank">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/SideBySideViewports</a><br>
<br>
but with graphs.<br>
<br>
I have created two graphs here:<br>
<a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Graphs/SideBySideGraphs" target="_blank">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Graphs/SideBySideGraphs</a> . If<br>
anyone could demonstrate how to display them side by side that would<br>
be great!<br>
<br>
Thanks,<br>
<br>
David<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Bertrand de Boisdeffre<br>Etudiant 2A  SICOM Phelma Grenoble-INP<br><br>