<div dir="ltr">I found a workaround.<div><br></div><div>I compiled vktITKImageFilter as a static library, and linked the plugins with the library rather than included its source code.</div><div><br></div><div>This would avoid the crashing and allows me to load both plugins at the beginning. But I'd get the following error when applying the plugins:</div>
<div><br></div><div><br></div>ERROR: In ..\..\..\..\..\src\ParaView\ParaViewCore\ServerImplementation\Core\vtkPVSessionCore.cxx, line 389<br><br>vtkPVSessionCore (00000000044669B0): Object type: vtkGaussianBlurImageFilter, could not find requested method: "SetInputConnection"<br>
<br>or the method was called with incorrect arguments.<br><br><br>while processing<br><br>Message 0 = Invoke<br><br>Argument 0 = vtk_object_pointer {vtkGaussianBlurImageFilter (000000000B70C310)}<br><br>Argument 1 = string_value {SetInputConnection}<br>
<br>Argument 2 = vtk_object_pointer {vtkAlgorithmOutput (000000000637B500)}<div><br></div><div><br></div><div>I had to explicitly implement the SetInputConnection() functions </div><div><br></div><div><div>void SetInputConnection(int port, vtkAlgorithmOutput* input) {vtkImageAlgorithm::SetInputConnection(port, input);}</div>
<div> void SetInputConnection(vtkAlgorithmOutput* input) {vtkImageAlgorithm::SetInputConnection(input);}</div></div><div><br></div><div>inside my plugins' headers to avoid the error.</div><div><br></div><div>Joe</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, May 7, 2014 at 7:02 AM, Utkarsh Ayachit <span dir="ltr"><<a href="mailto:utkarsh.ayachit@kitware.com" target="_blank">utkarsh.ayachit@kitware.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Maybe the easiest option here would be to just combine both plugins<br>
into one. A single plugin can provide multiple filters/features.<br>
<span class="HOEnZb"><font color="#888888"><br>
Utkarsh<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
On Tue, May 6, 2014 at 4:01 PM, Joe Ping-Lin Hsiao <<a href="mailto:phsiao@cs.unc.edu">phsiao@cs.unc.edu</a>> wrote:<br>
> Yes, since vtkITKImageFilter is the base class of both plugins, it appears<br>
> in ADD_PARAVIEW_PLUGIN() from both of them.<br>
><br>
><br>
> On Tue, May 6, 2014 at 2:27 PM, Utkarsh Ayachit<br>
> <<a href="mailto:utkarsh.ayachit@kitware.com">utkarsh.ayachit@kitware.com</a>> wrote:<br>
>><br>
>> Yes vtkITKImageFilter sounds like the class being wrapped twice. Is<br>
>> vtkITKImageFilter.cxx added to both the plugins in<br>
>> ADD_PARAVIEW_PLUGIN() call?<br>
>><br>
>> On Tue, May 6, 2014 at 11:45 AM, Joe Ping-Lin Hsiao <<a href="mailto:phsiao@cs.unc.edu">phsiao@cs.unc.edu</a>><br>
>> wrote:<br>
>> > I am not sure if this is the wrapped class that you mentioned, but I<br>
>> > checked<br>
>> > the code,<br>
>> ><br>
>> > within the CMake of the base class (vtkITKImageFilter), there is<br>
>> ><br>
>> > VTK_WRAP_ClientServer("ITKImageFilter"<br>
>> > ParaViewITKPluginsWrappedSrcs "${ParaViewITKPluginsCommonSrcs}"<br>
>> > )<br>
>> ><br>
>> > and in the base class' header, there are a bunch of //BTX and //ETX<br>
>> > securing<br>
>> > ITK declarations.<br>
>> ><br>
>> > Within the pluings' headers, there are also a bunch of //BTX and //ETX<br>
>> > surrounding ITK code.<br>
>> ><br>
>> > I tried disabling them all above, but still get the same error.<br>
>> ><br>
>> ><br>
>> > One thing I noticed is that in Visual Studio under the projects of both<br>
>> > plugins, there is a vtkITKImageFilterClientServer.cxx created by<br>
>> > ParaView.<br>
>> > Could this be the duplicate copy of class?<br>
>> ><br>
>> ><br>
>> > On Tue, May 6, 2014 at 8:58 AM, Utkarsh Ayachit<br>
>> > <<a href="mailto:utkarsh.ayachit@kitware.com">utkarsh.ayachit@kitware.com</a>> wrote:<br>
>> >><br>
>> >> Is it possible that both of the plugins have some wrapped class that<br>
>> >> is duplicated in the two?<br>
>> >><br>
>> >> On Mon, May 5, 2014 at 1:32 PM, Joe Ping-Lin Hsiao <<a href="mailto:phsiao@cs.unc.edu">phsiao@cs.unc.edu</a>><br>
>> >> wrote:<br>
>> >> > I am having trouble loading my custom plugins, which have an internal<br>
>> >> > ITK<br>
>> >> > pipeline. Everything works fine if I only load one of them. As soon<br>
>> >> > as I<br>
>> >> > load a second one, the program crashes. The error message I get from<br>
>> >> > debug<br>
>> >> > mode is<br>
>> >> ><br>
>> >> > Unhandled exception at 0x000007feeb86275d (vtkClientServer-pv4.1.dll)<br>
>> >> > in<br>
>> >> > ImageSurfer2.exe: 0xC0000005: Access violation reading location<br>
>> >> > 0x0000000000000000.<br>
>> >> ><br>
>> >> ><br>
>> >> > The call stack:<br>
>> >> ><br>
>> >> > vtkClientServer-pv4.1.dll!std::operator<<<std::char_traits<char><br>
>> >> >>(std::basic_ostream<char,std::char_traits<char> > & _Ostr={...},<br>
>> >> >> const<br>
>> >> >> char<br>
>> >> > * _Val=0x000007feeb8aaec8) Line 747 + 0x8 bytes C++<br>
>> >> ><br>
>> >> >><br>
>> >> >><br>
>> >> >><br>
>> >> >> vtkClientServer-pv4.1.dll!vtkClientServerInterpreter::AddNewInstanceFunction(const<br>
>> >> >> char * name=0x000007feed4920d0, vtkObjectBase * (void *)*<br>
>> >> >> f=0x000007feed301cfd, void * ctx=0x0000000000000000, void (void *)*<br>
>> >> >> freeFunction=0x0000000000000000) Line 851 + 0x1b bytes C++<br>
>> >> ><br>
>> >> > Hessian3DToVesselnessMeasureImageFilter.dll!000007feed34e8c2()<br>
>> >> ><br>
>> >> > [Frames below may be incorrect and/or missing, no symbols loaded<br>
>> >> > for<br>
>> >> > Hessian3DToVesselnessMeasureImageFilter.dll]<br>
>> >> ><br>
>> >> > 000000000480f170()<br>
>> >> ><br>
>> >> > Hessian3DToVesselnessMeasureImageFilter.dll!000007feed4920d0()<br>
>> >> ><br>
>> >> > Hessian3DToVesselnessMeasureImageFilter.dll!000007feed301cfd()<br>
>> >> ><br>
>> >> ><br>
>> >> ><br>
>> >> > Here is my class hierarchy:<br>
>> >> ><br>
>> >> ><br>
>> >> > vtkITKImageFilter -> class inherits from vtkImageAlgorithm. Use<br>
>> >> > vtkImageExport, itk::VTKImageImport, itk::VTKImageExport, and<br>
>> >> > vtkImageImport<br>
>> >> > inside to convert between VTK and ITK.<br>
>> >> ><br>
>> >> ><br>
>> >> > MyITKFilter -> my ITK plugin inheriting from vtkITKImageFilter.<br>
>> >> ><br>
>> >> ><br>
>> >> ><br>
>> >> > I include source code from both classes in CMake:<br>
>> >> ><br>
>> >> ><br>
>> >> > ADD_PARAVIEW_PLUGIN(${PLUGIN} 1.0<br>
>> >> ><br>
>> >> > SERVER_MANAGER_XML ${XML}<br>
>> >> ><br>
>> >> > SERVER_MANAGER_SOURCES<br>
>> >> > vtkHessian3DToVesselnessMeasureImageFilter.cxx<br>
>> >> > ../Common/vtkITKImageFilter.cxx<br>
>> >> ><br>
>> >> > SOURCES ${XML}<br>
>> >> ><br>
>> >> > )<br>
>> >> ><br>
>> >> ><br>
>> >> > and link the plugin with ITK<br>
>> >> ><br>
>> >> ><br>
>> >> > TARGET_LINK_LIBRARIES(${PLUGIN} ${ITK_LIBRARIES})<br>
>> >> ><br>
>> >> ><br>
>> >> > ITK was built in static.<br>
>> >> ><br>
>> >> ><br>
>> >> > Any idea what might cause the trouble?<br>
>> >> ><br>
>> >> ><br>
>> >> ><br>
>> >> > Thanks,<br>
>> >> ><br>
>> >> > Joe<br>
>> >> ><br>
>> >> ><br>
>> >> > _______________________________________________<br>
>> >> > Paraview-developers mailing list<br>
>> >> > <a href="mailto:Paraview-developers@paraview.org">Paraview-developers@paraview.org</a><br>
>> >> > <a href="http://public.kitware.com/mailman/listinfo/paraview-developers" target="_blank">http://public.kitware.com/mailman/listinfo/paraview-developers</a><br>
>> >> ><br>
>> ><br>
>> ><br>
><br>
><br>
</div></div></blockquote></div><br></div>