<div dir="ltr"><div class="markdown-here-wrapper" style="font-family:"Lucida Sans",Cantarell,Verdana,sans-serif;color:rgb(11,83,148)"><p style="margin:0px 0px 1.2em!important">You should be able to get the output of the mapper as vtkImageData and then use GetScalarPointer() to access the raw data.</p>
<div title="MDH:WW91IHNob3VsZCBiZSBhYmxlIHRvIGdldCB0aGUgb3V0cHV0IG9mIHRoZSBtYXBwZXIgYXMgdnRr
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YXcgZGF0YS4=" style="height:0;width:0;max-height:0;max-width:0;overflow:hidden;font-size:0em;padding:0;margin:0">​</div></div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jun 27, 2018 at 9:49 AM Eva Monclús <<a href="mailto:emonclus@cs.upc.edu">emonclus@cs.upc.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <p>Thanks a lot for the quickly answer, but my problem is that I
      want to use the output of the vtkImageActor in a different graphic
      object (another 3D plane) and I do not know how to manage it. <br>
    </p>
    <p>In very, very technical words, I want to get access to the
      unsigned char * that it is being rendering using the
      vtkImageActor.</p>
    <p>Thanks in advance,</p>
    <p>    Eva</p></div><div text="#000000" bgcolor="#FFFFFF">
    <p><br>
    </p>
    <br>
    <div class="m_-7534516313208078740moz-cite-prefix">On 27/06/2018 15:22, Sankhesh Jhaveri
      wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">
        <div class="m_-7534516313208078740markdown-here-wrapper">
          <p style="margin:0px 0px 1.2em!important">Hi Eva,</p>
          <p style="margin:0px 0px 1.2em!important"><code style="font-size:0.95em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(218,218,218);background-color:rgb(232,232,232);border-radius:3px;display:inline">vtkImageActor</code>
            is a 2D textured plane in a 3D space. Make sure that you use
            the <code style="font-size:0.95em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(218,218,218);background-color:rgb(232,232,232);border-radius:3px;display:inline">vtkImageMapper3D</code>
            (default mapper) with it.<br>
            If you’re just looking for 3D interaction with the actor,
            use an interactor style like <code style="font-size:0.95em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(218,218,218);background-color:rgb(232,232,232);border-radius:3px;display:inline">vtkInteractorStyleTrackballCamera</code>.</p>
          <p style="margin:0px 0px 1.2em!important">Hope that helps.</p>
          <p style="margin:0px 0px 1.2em!important">Thanks,<br>
            Sankhesh</p>
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        </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr">On Wed, Jun 27, 2018 at 9:17 AM Eva Monclús <<a href="mailto:emonclus@cs.upc.edu" target="_blank">emonclus@cs.upc.edu</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div text="#000000" bgcolor="#FFFFFF">
            <p>Hello everyone,</p>
            <p>I'm working with a volume dataset (temporal Dicom serie)
              and I´m able to visualize the  slices using the following
              vtk C++ classes:</p>
            <ul>
              <li>vtkImageData: represents the volume dataset</li>
              <li>vtkImageMapToColors: I use this class to define the
                transfer function to be used in the rendering</li>
              <li>vtkImageActor: I use this class to render a specific
                slice of the volume dataset  <br>
              </li>
            </ul>
            Until here everything it is fine. I can render the slice I
            want using the classes before mentioned changing the
            SetDisplayExtent of the vtkImageActor.<br>
            <br>
            Now I want to visualize the output of my vtkImageActor as a
            2D texture in a free 3D plane.  Then, I consider to have the
            following classes:<br>
            <ul>
              <li> I use a vtkPlaneSource to define the  3D plane:
                orientation and position</li>
              <li>a vtkTexture that has to be attached to the
                vtkPlaneSource. My problem comes out with the definition
                of the SetInputConnection of the vtkTexture. I want to
                define the  image as the output of the vtkImageActor.
                But  I do not get it.</li>
            </ul>
            I am successful in visualizing the vtkPlane in black  color
            (due to the texture is not well defined) unfortunately, I
            can't get it to work properly  with a texture of a specific
            slice of the volume dataset. I have tried different ways of
            assigning the SetInputConnection of the vtkTexture using the
            vtkImageActor, but none of them worked well.  <br>
            <br>
            Any help will be welcome.  Thank you very much in advance,<br>
            <br>
               Eva<br>
            <br>
            <br>
            <br>
          </div>
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        </blockquote>
      </div>
      -- <br>
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        <div dir="ltr">
          <div class="m_-7534516313208078740inbox-inbox-inbox-inbox-inbox-inbox-inbox-markdown-here-wrapper">
            <h5 id="m_-7534516313208078740inbox-inbox-inbox-inbox-inbox-inbox-inbox-sankhesh-jhaveri" style="margin:1.3em 0px 1em;padding:0px;font-size:1.1em;border-bottom-width:1px;border-bottom-style:solid;border-bottom-color:rgb(238,238,238);font-weight:bold;color:rgb(11,65,148)">Sankhesh
              Jhaveri</h5>
            <h6 id="m_-7534516313208078740inbox-inbox-inbox-inbox-inbox-inbox-inbox--sr-research-development-engineer-kitware-http-www-kitware-com-518-881-4417"><em>Sr. Research
                & Development Engineer</em> | <a href="http://www.kitware.com/" target="_blank">Kitware</a>
              | <a href="tel:(518)%20881-4417" value="+15188814417" target="_blank">(518) 881-4417</a></h6>
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          </div>
        </div>
      </div>
    </blockquote>
    <br>
  </div></blockquote></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div class="inbox-inbox-inbox-inbox-inbox-inbox-inbox-markdown-here-wrapper" style="font-family:"proza libre",sans-serif;color:rgb(0,56,107)"><h5 id="inbox-inbox-inbox-inbox-inbox-inbox-inbox-sankhesh-jhaveri" style="margin:1.3em 0px 1em;padding:0px;font-size:1.1em;border-bottom-width:1px;border-bottom-style:solid;border-bottom-color:rgb(238,238,238);font-weight:bold;color:rgb(11,65,148)">Sankhesh Jhaveri</h5>
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