[Solved] QVTKWidgetPlugin makes QT creator crash

mbcx9rb9

I'm trying to use VTK in Qt Creator.

In Qt Designer, I have copied thelibQVTKWidgetPlugin.dylib into the plugin directory. Now I can create QVTKWidgets in Designer.

However, when I copy libQVTKWidgetPlugin.dylib into the
@[QT dir]/QT Creator.app/Contents/Plugins/designer @

folder and boot up QT Creator, it crashes before loading with the error "Qt Creator quit unexpectedly" (I can attach the full error if necessary).

Similarly, when I try to promote a QWidget to a QVTKWidget in the designer tab, any program I create with the QVTKWidget crashes with the same error.

Why is this?

The QT GUI examples included with VTK work with CMake.

My specs are: Mac OS X 10.10, VTK 6.1 (release mode, BUILD_SHARED_LIBS on, vtk_GUISupportQt on) Qt Creator 3.2.2 with Qt 5.3.2

Thanks in advance

SGaist

Hi and welcome to devnet,

Which version of Qt did you use to build the plugin ?

The error report would indeed be useful

mbcx9rb9

How do you mean the Qt version used to build the plugin? I built the plugin when building VTK (6.1) and placed it into the plugin folder of Qt Creator 3.2.2 running Qt 5.3.2. I can send you the error when I get to the office tomorrow morning.

Cheers

mbcx9rb9

Ok the error is pretty lengthy but it is attached beneath. It happens whenever I load the *.ui file in the editor (i.e. bring up the design tab).

Thanks for the help

https://copy.com/lZsSmUtWkXO6fjYt

SGaist

Your Qt Creator was built with Qt 5.3.2, what version of Qt are you using currently ?

mbcx9rb9

Still 5.3.2, the current version of Qt.

SGaist

From your error log it seems that Qt Creator is trying to access a null pointer. Can you run Qt Creator from the command line with QT_DEBUG_PLUGINS set to 1 to see if you have some more information about what happens ?

mbcx9rb9

Running with QT_DEBUG_PLUGINS, I found the error:

@Error: no override found for 'vtkRenderWindow'@

With a quick google, I found that before any #include lines in Qt Creator, you need to add:

@#define vtkRenderingCore_AUTOINIT 4(vtkInteractionStyle,vtkRenderingFreeType,vtkRenderingFreeTypeOpenGL,vtkRenderingOpenGL)
#define vtkRenderingVolume_AUTOINIT 1(vtkRenderingVolumeOpenGL)@

Placing the libQVTK file in the designer folder of Creator plugins still causes a crash, but promoting the QWidget manually works. As long as one method works, I'm happy!

Cheers for the help

Source (http://stackoverflow.com/questions/18642155/no-override-found-for-vtkpolydatamapper)

SGaist

Nice !

Thanks for sharing !

Can you also please update the thread title prepending [solved] so other forum users may know a solution has been found :)