[vtkusers] Cmake + VTK + QT issues

[David Doria]

On Wed, Jan 20, 2010 at 4:05 PM, Caleb Johnston <cjj37 at cornell.edu> wrote:

> I am developing an application using QT 4.6 and VTK 5.4 with CMake 2.8.
> However, I am having troubles compiling with QVTK. Here is an overview of my
> situation.
>
> I am trying to compile the VTK Qt ImageViewer example as a test for using
> the QVTK widget. This example is in the source tree at
> Examples/GUI/Qt/ImageViewer. I have been able to get this to work on Ubuntu
> 9.10. I followed instructions that I read from this mailing list and other
> related sites. But on OSX 10.6, I cannot get VTK to compile using Carbon or
> Cocoa. It always fails during the make process with the following error:
>
> .../VTK/Examples/GUI/Qt/ImageViewer/main.cxx:36:24: error: QVTKWidget.h: No
> such file or directory
> .../VTK/Examples/GUI/Qt/ImageViewer/main.cxx: In function ‘int main(int,
> char**)’:
> .../VTK/Examples/GUI/Qt/ImageViewer/main.cxx:42: error: ‘QVTKWidget’ was
> not declared in this scope
> .../VTK/Examples/GUI/Qt/ImageViewer/main.cxx:42: error: expected `;' before
> ‘widget’
> .../VTK/Examples/GUI/Qt/ImageViewer/main.cxx:43: error: ‘widget’ was not
> declared in this scope
>
> However QVTKWidget.h is located /usr/local/include/vtk-5.4/QVTKWidget.h.
> What has gone wrong here?
>
> Also, on Windows XP SP3, no matter what I try, Cmake reports "Qt was not
> found." However, it is installed. And I have manually created the QTDIR
> environment variable which points to 'C:/Qt/2010.01/'. I have also indicated
> that I am using version 4 (with DESIRED_QT_VERSION). And I can successfully
> develop a QT stand-alone app with this environment.
>
> Any help or guidance would be greatly appreciated!
>
> Caleb
>
>
It's been a while since I tried this, but I believe I had to turn on
VTK_USE_QT and VTK_USE_GUISUPPORT in the advanced VTK build configuration.

Thanks,

David
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