[Insight-users] a question about watershed

[Karthik Krishnan]

liu jianfei wrote:

> Hi, everyone
>
>
>     WatershedFilterType::Pointer watershed = WatershedFilterType::New();
>     watershed->SetLevel( 0.4 );
>     watershed->SetThreshold( 0.5 );
>     watershed->SetInput(gradient->GetOutput());
>    
>
>    When I compiled the program, it's running fine except the last 
> step: building the executable. Here are the error information:
>
>    Building executable /home/jliu1/illustrative/exampApp...
> VtkCanvas.o(.gnu.linkonce.t._ZN3itk20WatershedImageFilterINS_5ImageIfLj3EEEE12GenerateDataEv+0x117): 
> In function `itk::WatershedImageFilter<itk::Image<float, (unsigned)3> 
> >::GenerateData()':
> /home/krs/src/InsightToolkit-2.2.0/Code/Common/itkDerivativeOperator.txx:48: 
> undefined reference to `typeinfo for 
> itk::WatershedMiniPipelineProgressCommand'
> VtkCanvas.o(.gnu.linkonce.t._ZN3itk36WatershedMiniPipelineProgressCommandC1Ev+0x19): 
> In function 
> `itk::WatershedMiniPipelineProgressCommand::WatershedMiniPipelineProgressCommand[in-charge]()':
> /usr/include/c++/3.2.2/bits/stl_vector.h:891: undefined reference to 
> `vtable for itk::WatershedMiniPipelineProgressCommand'
> VtkCanvas.o(.gnu.linkonce.t._ZN3itk13ObjectFactoryINS_36WatershedMiniPipelineProgressCommandEE6CreateEv+0x11): 
> In function 
> `itk::ObjectFactory<itk::WatershedMiniPipelineProgressCommand>::Create()':
> /usr/include/c++/3.2.2/bits/stl_vector.h:967: undefined reference to 
> `typeinfo for itk::WatershedMiniPipelineProgressCommand'
> VtkCanvas.o(.gnu.linkonce.t._ZN3itk13ObjectFactoryINS_36WatershedMiniPipelineProgressCommandEE6CreateEv+0x51): 
> In function 
> `itk::ObjectFactory<itk::WatershedMiniPipelineProgressCommand>::Create()':
> /home/krs/src/InsightToolkit-2.2.0/Code/Common/itkImportImageContainer.txx:64: 
> undefined reference to `typeinfo for 
> itk::WatershedMiniPipelineProgressCommand'

You did not link against ITKAlgorithms

> collect2: ld returned 1 exit status
> gmake[1]: *** [/home/jliu1/illustrative/exampApp] Error 1
> gmake: *** [default_target] Error 2
>
> Can anyone tell me what's the error in my program or cmakelist.txt? 
> Thanks..
>
> -- 
> Sincerly
> Jianfei Liu
>
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>
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