Thanks, so addObserver method is the best way to go then?<br><br><div class="gmail_quote">2012/6/21 Sebastien Jourdain <span dir="ltr">&lt;<a href="mailto:sebastien.jourdain@kitware.com" target="_blank">sebastien.jourdain@kitware.com</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">You can not override vtkObject in Java. That code need to be written in C++.<br>
<div><div class="h5"><br>
<br>
On Thu, Jun 21, 2012 at 11:17 AM, Jonathan Ruiz Peinado<br>
&lt;<a href="mailto:jonathan.ruiz3@gmail.com">jonathan.ruiz3@gmail.com</a>&gt; wrote:<br>
&gt; Hi I&#39;m trying to build my own interactor style class, as it&#39;s shown in the<br>
&gt; documentation seems an easy  job but is not working for some reason this is<br>
&gt; part of the code:<br>
&gt;<br>
&gt; ----------------------------------------------------------------------------------------------------<br>
&gt; vtkInteractorStylePointer interactor = new vtkInteractorStylePointer();<br>
&gt;<br>
&gt; interactor.SetInteractor(vtkPanel.getRenderWindowInteractor());<br>
&gt; vtkPanel.setInteractorStyle(interactor);<br>
&gt; ----------------------------------------------------------------------------------------------------<br>
&gt;<br>
&gt; if I use one of the predefined styles vtkInteractorStyle* they work<br>
&gt; perfectly well , but when  I try to use mine vtkInteractorStylePointer()<br>
&gt; doesn&#39;t work at all.<br>
&gt;<br>
&gt;<br>
&gt; vtkInteractorStylePointer should print out some text when left button is<br>
&gt; pressed, but it doesn&#39;t.<br>
&gt;<br>
&gt; ----------------------------------------------------------------------------------------------------<br>
&gt; public class vtkInteractorStylePointer extends vtk.vtkInteractorStyle{<br>
&gt;<br>
&gt;     @Override<br>
&gt;     public void OnLeftButtonDown() {<br>
&gt;         System.out.println(&quot;xxx&quot;);<br>
&gt;         super.OnLeftButtonDown();<br>
&gt;<br>
&gt;     }<br>
&gt;     @Override<br>
&gt;     public void OnLeftButtonUp() {<br>
&gt;         System.out.println(&quot;yyy&quot;);<br>
&gt;         super.OnLeftButtonUp();<br>
&gt;     }<br>
&gt;<br>
&gt; }<br>
&gt; ------------------------------------------------------------------------------------------------------<br>
&gt;<br>
&gt; do some body know what&#39;s going wrong ?<br>
&gt;<br>
&gt; Thanks for your time!<br>
&gt;<br>
&gt;<br>
&gt;<br>
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</blockquote></div><br>