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<DIV>Hi all:</DIV>

<DIV style="TEXT-INDENT: 2em">I use vtkImagePlaneWidget&nbsp; to get 

a&nbsp;cross-sectional&nbsp;view,&nbsp;the&nbsp;program works fine;&nbsp;but 

when i combine it with Qt,&nbsp; when the mouse move into the QVTKInteractor 

area , the program crash down. I suppose the reason was QVTKInteractor ;&nbsp; 

Can&nbsp; anybody help me ?Thank you!</DIV>

<DIV style="TEXT-INDENT: 2em">Some important codes:</DIV>

<DIV style="TEXT-INDENT: 2em">&nbsp;</DIV>

<DIV 

style="TEXT-INDENT: 2em">QVTKInteractor&nbsp;*iren=qVTK1-&gt;GetInteractor();&nbsp;</DIV>

<DIV style="TEXT-INDENT: 2em">.</DIV>

<DIV style="TEXT-INDENT: 2em">.</DIV>

<DIV style="TEXT-INDENT: 2em">.</DIV>

<DIV style="TEXT-INDENT: 2em">

<DIV>&nbsp;vtkSmartPointer&lt;vtkCellPicker&gt;&nbsp;picker&nbsp;=</DIV>

<DIV>&nbsp;&nbsp;vtkSmartPointer&lt;vtkCellPicker&gt;::New();</DIV>

<DIV>&nbsp;&nbsp;picker-&gt;SetTolerance(0.005);</DIV>

<DIV>&nbsp;</DIV>

<DIV>&nbsp;&nbsp;vtkSmartPointer&lt;vtkProperty&gt;&nbsp;ipwProp&nbsp;=</DIV>

<DIV>&nbsp;&nbsp;vtkSmartPointer&lt;vtkProperty&gt;::New();</DIV>

<DIV>&nbsp;</DIV>

<DIV>&nbsp;&nbsp;vtkSmartPointer&lt;vtkImagePlaneWidget&gt;&nbsp;planeWidgetZ&nbsp;=</DIV>

<DIV>&nbsp;&nbsp;vtkSmartPointer&lt;vtkImagePlaneWidget&gt;::New();</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetInteractor(&nbsp;iren);</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetKeyPressActivationValue('z');</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetPicker(picker);</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;GetPlaneProperty()-&gt;SetColor(0,0,1);</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetTexturePlaneProperty(ipwProp);</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;TextureInterpolateOn();</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetResliceInterpolateToCubic();</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetInput(v16-&gt;GetOutput());</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetPlaneOrientationToZAxes();</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetSliceIndex(32);</DIV>

<DIV>&nbsp;&nbsp;//planeWidgetZ-&gt;SetLookupTable(&nbsp;planeWidgetX-&gt;GetLookupTable());</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;SetLookupTable(&nbsp;hueLut);</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;DisplayTextOn();</DIV>

<DIV>&nbsp;&nbsp;planeWidgetZ-&gt;On();</DIV>&nbsp;</DIV>

<DIV style="TEXT-INDENT: 2em">&nbsp;</DIV>

<DIV>&nbsp;</DIV>

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<DIV><SPAN>qlizhi</SPAN></DIV></BODY></HTML>