Hello everyone. <br><br>I have been slowly getting the hang of QT and ITK, After a few days I successfully was able to compile and run the QTITK example located at <a href="http://public.kitware.com/cgi-bin/viewcvs.cgi/QtITK/?root=InsightApplications">http://public.kitware.com/cgi-bin/viewcvs.cgi/QtITK/?root=InsightApplications</a><br>
<br>The small app loads and image and shows colors depending of the progress it takes when going through a filter. Also it displays a progress bar. I am using 'curvatureflowimagefilter' to test the connections. <br>
<br>I now would like to use a slider to set the SetNumberofIterations int variable of the filter from the GUI. Unfortunately I get the message below. <br><br>I believe I am close as I was able to start the filter using the QTSlider - sliderMoved function to trigger the file reading and filtering by calling the Update function. <br>
<br>Any suggestions would be handy. Full code is attached and code snippet is below. <br><br>Thank you<br><br>Sergio <br><br><br> QWidget qb;<br> qb.resize(620,200);<br><br> const int buttonHeight = 30;<br> const int buttonWidth = 100;<br>
const int buttonSpace = 100;<br><br> int horizontalPosition = 60;<br><br> QPushButton bb( "Start", &qb );<br> bb.setGeometry( horizontalPosition, 20, buttonWidth, buttonHeight );<br><br> horizontalPosition += buttonWidth + buttonSpace;<br>
<br> QtLightIndicator cc( &qb, "State" );<br> cc.setGeometry( horizontalPosition, 20, buttonWidth, buttonHeight );<br> cc.Modified();<br><br> horizontalPosition += buttonWidth + buttonSpace;<br><br> QPushButton qt( "Quit", &qb );<br>
qt.setGeometry( horizontalPosition, 20, buttonWidth, buttonHeight );<br><br> QtProgressBar qs( &qb, "Progress");<br> qs.setGeometry( 10, 60, 600, 30 );<br> <br> QSlider sl(Qt::Horizontal, &qb);<br>
sl.setRange(1, 100);<br> sl.setValue(10);<br> sl.setGeometry(100, 110, 400, 60);<br><br> // Connect the progress bar to the ITK processObject<br> qs.Observe( filter.GetPointer() );<br> qs.Observe( reader.GetPointer() );<br>
<br><br> typedef QtSlotAdaptor<FilterType> SlotAdaptorType;<br> SlotAdaptorType slotAdaptor1;<br> // Connect the adaptor to a method of the ITK filter<br> slotAdaptor1.SetCallbackFunction( filter, & FilterType::Update );<br>
// Connect the adaptor's Slot to the Qt Widget Signal<br> QObject::connect( &bb, SIGNAL(clicked()), &slotAdaptor1, SLOT(Slot()) );<br><br> typedef QtSlotAdaptor<FilterType> SlotAdaptorType;<br> SlotAdaptorType slotAdaptor2;<br>
// Connect the adaptor to a method of the ITK filter<br> slotAdaptor2.SetCallbackFunction( filter, & FilterType::SetNumberOfIterations );<br> // Connect the adaptor's Slot to the Qt Widget Signal<br> QObject::connect( &sl, SIGNAL(sliderMoved(int)), &slotAdaptor2, SLOT(Slot()) );<br>
<br><br>********************* COMPILE OUTPUT *********************************************<br><br>linux-vk5n:/home/echopixel/<div id=":11k" class="ii gt">Desktop/engine/code/epx01 # make<br>[ 25%] Building CXX object CMakeFiles/epx01.dir/epx.cxx.o<br>
/home/echopixel/Desktop/engine/code/epx01/src/epx.cxx: In function ‘int main(int, char**)’:<br>/home/echopixel/Desktop/engine/code/epx01/src/epx.cxx:81: warning: deprecated conversion from string constant to ‘char*’<br>
/home/echopixel/Desktop/engine/code/epx01/src/epx.cxx:90: warning: deprecated conversion from string constant to ‘char*’<br>/home/echopixel/Desktop/engine/code/epx01/src/epx.cxx:113: error: no matching function forcall to ‘QtSlotAdaptor<itk::CurvatureFlowImageFilter<itk::Image<float, 2u>, itk::Image<float, 2u> > >::SetCallbackFunction(itk::SmartPointer<itk::CurvatureFlowImageFilter<itk::Image<float, 2u>, itk::Image<float, 2u> > >&, void (itk::FiniteDifferenceImageFilter<itk::Image<float, 2u>, itk::Image<float, 2u> >::*)(unsigned int))’<br>
/home/echopixel/Desktop/engine/code/epx01/src/itkQtAdaptor.h:67: note: candidates are: void QtSlotAdaptor<T>::SetCallbackFunction(T*, void (T::*)()) [with T = itk::CurvatureFlowImageFilter<itk::Image<float, 2u>, itk::Image<float, 2u> >]<br>
/home/echopixel/Desktop/engine/code/epx01/src/itkQtAdaptor.h:76: note: void QtSlotAdaptor<T>::SetCallbackFunction(T*, void (T::*)(int)) [with T = itk::CurvatureFlowImageFilter<itk::Image<float, 2u>, itk::Image<float, 2u> >]<br>
/home/echopixel/Desktop/engine/code/epx01/src/itkQtAdaptor.h:85: note: void QtSlotAdaptor<T>::SetCallbackFunction(T*, void (T::*)(double)) [with T = itk::CurvatureFlowImageFilter<itk::Image<float, 2u>, itk::Image<float, 2u> >]<br>
make[2]: *** [CMakeFiles/epx01.dir/epx.cxx.o] Error 1<br>make[1]: *** [CMakeFiles/epx01.dir/all] Error 2<br>make: *** [all] Error 2</div><br>