<p>Use the glyph filter to make one actor with thousands of cubes.</p>
<div class="gmail_quote">On Feb 7, 2012 11:12 AM, &quot;Alex Southern&quot; &lt;<a href="mailto:mrapsouthern@gmail.com">mrapsouthern@gmail.com</a>&gt; wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

  

    
  
  <div bgcolor="#FFFFFF" text="#000000">
    Hi,<br>
    <br>
    I&#39;m wondering what the best way to do this is?<br>
    <br>
    Currently the cubes are defined in a dynamic array of
    vtkCubeSources, see code below. This results in very slow
    interaction.<br>
    <br>
    Is there a more lightweight approach to this problem? There is a
    typical image below.<br>
    <br>
    // Create a cube array.<br>
        int numCubes = 44582; // in practice this value could be
    anything<br>
        vtkCubeSource **cubeSource = new vtkCubeSource* [numCubes];     <br>
        vtkPolyDataMapper **mapper = new vtkPolyDataMapper* [numCubes];<br>
        vtkActor **actor = new vtkActor* [numCubes];<br>
    <br>
        for (int i = 0; i &lt; ca.numCubes; i++)<br>
        {<br>
            cubeSource[i] = vtkCubeSource::New(); <br>
            mapper[i] = vtkPolyDataMapper::New();     <br>
            actor[i] = vtkActor::New();<br>
    <br>
            cubeSource[i]-&gt;SetCenter(ca.cubeCentre[i].x ,
    ca.cubeCentre[i].y, ca.cubeCentre[i].z);<br>
            cubeSource[i]-&gt;SetXLength(ca.cubeLength[i] );<br>
            cubeSource[i]-&gt;SetYLength(ca.cubeLength[i] );<br>
            cubeSource[i]-&gt;SetZLength(ca.cubeLength[i] );<br>
    <br>
           
    mapper[i]-&gt;SetInputConnection(cubeSource[i]-&gt;GetOutputPort());<br>
            actor[i]-&gt;SetMapper(mapper[i]);<br>
            actor[i]-&gt;GetProperty()-&gt;SetColor(255,0,0);<br>
           
    actor[i]-&gt;GetProperty()-&gt;SetRepresentationToWireframe();<br>
    <br>
            renderer-&gt;AddActor(actor[i]);<br>
        <br>
        }<br>
    <br>
    <img src="cid:part1.09080609.05040903@gmail.com" alt="" height="769" width="974"><br>
  </div>

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<br></blockquote></div>