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<div class="moz-cite-prefix">Excellent solution! Thanks, Dean.<br>
<br>
Weiguang<br>
<br>
On 21/08/2013 9:28 AM, Dean Inglis wrote:<br>
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cite="mid:CABX+vok1VCzUqudWR1-GfwK2WA0Qf9-TY0FfeZ=K8vtEMpDW4w@mail.gmail.com"
type="cite">
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<div>Hi Weiguang,<br>
<br>
</div>
you can use non-axis aligned planes to crop a volume by
retrieving the 6 planes defining<br>
the box widget in a call back and passing them to your volume
mapper:<br>
<br>
vtkBoxWidget2 *self =
reinterpret_cast<vtkBoxWidget2*>( caller );<br>
vtkBoxRepresentation2* rep =<br>
vtkBoxRepresentation2::SafeDownCast(
self->GetRepresentation() );<br>
rep->GetPlanes( this->Planes );<br>
this->Volume->GetMapper()->SetClippingPlanes(
this->Planes );<br>
<br>
</div>
Dean <br>
<div><br>
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<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Tue, Aug 20, 2013 at 2:05 PM,
Weiguang Guan <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:guanw@rhpcs.mcmaster.ca" target="_blank">guanw@rhpcs.mcmaster.ca</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
I have a volume data of vtkImageData type, and would like to
do volume rendering of a portion of it, specified by a
vtkBoxWidget. The box widget is rotation enabled so that the
region of interest may not align with x-y-z axes. I hesitate
to use vtkClipVolume because it would change the data to
unstructured gird data and the fast texture-mapping based
volume rendering couldn't be used. Can someone suggest a
better solution for what I want to do? Thanks.<br>
<br>
Best,<br>
Weiguang<br>
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