<div dir="ltr">worked like a charm, thanks!</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Sep 6, 2013 at 8:36 PM, David Doria <span dir="ltr"><<a href="mailto:daviddoria@gmail.com" target="_blank">daviddoria@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Thu, Sep 5, 2013 at 11:50 PM, Perryn Fowler <<a href="mailto:pezlists@gmail.com">pezlists@gmail.com</a>> wrote:<br>
> Hello,<br>
><br>
> I am working on a visualisation that involves rendering the same volume<br>
> twice with different opacity and colour settings. This allows us to show one<br>
> way of looking at the volume data 'overlaid' with another way.<br>
><br>
> The only problem is that in 'actor' mode, the interactor allows/forces you<br>
> to interact with the volumes independently. So, if you rotate, only one of<br>
> our 'views' rotates.<br>
><br>
> Is there a way of 'grouping' actors for interaction so that they would<br>
> rotate together?<br>
><br>
> Failing that, is there a better way of obtaining the effect we want without<br>
> rendering two volumes?<br>
><br>
> cheers<br>
> Perryn<br>
<br>
</div></div>I'm not sure if it will work with volumes, but have you tried an Assembly?<br>
<br>
<a href="http://www.cmake.org/Wiki/VTK/Examples/Cxx/Interaction/Assembly" target="_blank">http://www.cmake.org/Wiki/VTK/Examples/Cxx/Interaction/Assembly</a><br>
<span class="HOEnZb"><font color="#888888"><br>
David<br>
</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br>-----------------------<br>Perryn Fowler<br>ThoughtWorks
</div>