[vtkusers] Problem with Volume rendering inside Qt application. ​​

Sankhesh Jhaveri sankhesh.jhaveri at kitware.com
Tue Aug 12 14:18:36 EDT 2014

Hi JL,

It doesn't matter whether you setup the VTK pipeline first or the Qt UI.
All you need to do while creating the pipeline is to not provide the data
to the mapper. Once you load the file/data, you can set that as the input
data to the mapper and call Render on the RenderWindow.

Hope that helps!

Best Regards,

​Sankhesh Jhaveri​
Research & Development Engineer
Kitware, Inc.
*Phone*: (518) 881 4417
*Fax*: (518) 371 4573

From: "Jakub Łągwa" <kubalagwa at gmail.com>
> To: vtkusers at vtk.org
> Cc:
> Date: Mon, 11 Aug 2014 19:28:29 +0200
> Subject: [vtkusers]
> ​​
> Problem with Volume rendering inside Qt application.
> ​​
> Hello everyone,
> I have a problem with rendering volume in my VTK+ITK+Qt application, which
> should visualize DICOM volumetric data in QVTKWidget. But when I create my
> volume pipeline firstly (as a non-part of Qt mechanism), and than setup Qt
> ui and run RenWin->Render() everything works fine. Unfortunatelly, I want
> to setup ui first, let the user choose the file to load and than render
> volume. Is it some kind of known issue? I work on Ubuntu 12.04 + VTK 5.8 +
> ITK 4.5.
> Thanks for your help in advance.
> JL
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