Where can I get qwt.h and QVTKWidget.h

Hello folks
I am trying to install Elmer (a multiphysics open source structural analysis programme) on my OpenSUSE 11.2 partition.
I get error message
xxxxx qwt.h not found
xxxxx QVTKWiget.h not found

I also need to install the following libraries for the same programme
1- libvtk5-qt4-dev
2- libqwt5-qt4-dev
3- libqt4-dev

Using yast, I installed almost everything with qwt in it, but still getting the not found libraries

Any one know what repository have them
Thanks for reading my post and your hints are appreciated

… Open Source for Ever…

You should do your own build of VTK with Qt 4. You have to enable the following options in your VTK CMake configuration:
VTK_USE_GUISUPPORT (advanced) and subsequently VTK_USE_QVTK.
Be sure to configure and build VTK against the same Qt version.

You also need to install libqwt5-devel. Use Webpin to locate the correct package for your installation.

Thanks for a very positive reply. I downloaded the vtk files, and for the first time I used cmake-gui, that was a good experience for me, actually I used it three times until I produced a library acceptable by Elmer.
Now I am able to build half of Elmer modules, I need to dig for something missing (I do not know exactly what is missing, I will have to ask the developers)

As for libqwt5-qt4-dev, I used the following procedure:
1- From the openSUSE repositories I downloaded two packages, alien and deb
2- From the Debian repositories I downloaded libqwt5-qt4-dev.deb
then I used alien to convert it into rpm format.
No error messages refer to any of its functions, so I guess the conversion was successful.
Any way, I want to thank you again for your positive answer.
Good luck to all