<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Hi,<div><br></div><div>If I’m not mistaken, you should be able to use the output of vtkImageMapToColors - that’s a 3 component char * image.<br><br><div>Shash</div><div><br>On 27-Jun-2018, at 7:18 PM, Eva Monclús <<a href="mailto:emonclus@cs.upc.edu">emonclus@cs.upc.edu</a>> wrote:<br><br></div><blockquote type="cite"><div>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<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>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 27/06/2018 15:22, Sankhesh Jhaveri
wrote:<br>
</div>
<blockquote type="cite" cite="mid:CAEcL5t43GRHUOr=wtdjpUqgSqzo+USMJ18ubP3pKXu0HKNnXmg@mail.gmail.com">
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<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 class="gmail_quote">
<div dir="ltr">On Wed, Jun 27, 2018 at 9:17 AM Eva Monclús <<a href="mailto:emonclus@cs.upc.edu" moz-do-not-send="true">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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