[Paraview] Question about inheritance in paraview(vtk)

[Mike Jackson]

It depends on how you are building your plugin. I use externally built 
libraries all the time. 2 Things to remember here:

1: Compile time Includes - you will need to make sure that 
include_directories(.. ) are called for each directory that needs to be 
included. The "ITK_USE_FILE" should be setting those includes I believe.
2: Link time libraries - you will need a list of all the external 
libraries that also need to be linked to your plugin. If you are 
creating a new reader/writer/filter then that means setting the

SET (PARAVIEW_ADDITIONAL_LIBRARIES
     ${PARAVIEW_ADDITIONAL_LIBRARIES}
     ${BOOST_FILESYSTEM_LIBRARY}
     ${HDF_LIBRARY}
)

variable like show above.

That should get you started.

Mike

Biao She wrote:
> Thanks for your help, Michael Jackson! I am a big fan of you. :-)
> The problem was in my CMakeLists.txt file. Because I use ITK libraries in my
> class, I include
> FIND_PACKAGE(ITK REQUIRED)
> INCLUDE(${ITK_USE_FILE})
> in my CMakeList file.
> After I delete those code in my CMakeList file, everything worked fine.
> However, if I included those code in the CMakeList file, even if I didn't
> have anything related to ITK in my .cxx file, I still get the same errors as
> above mentioned.
> Did that suggest ParaView Plug-in can't use external libraries (i.e. ITK)?
> If not, how can I use ITK libraries in a ParaView Plug-in?
> Thanks.
> 
> Biao
> 
> 
> On Mon, Mar 9, 2009 at 2:28 PM, Michael Jackson <mike.jackson at bluequartz.net
>> wrote:
> 
>> Are you including the paths to the DICOMParser and DICOMAppHelper header
>> files? Can you do a "make VERBOSE=1"  to see the entire compile command?
>> Maybe it is not getting included properly for some reason.
>>
>> _________________________________________________________
>> Mike Jackson                  mike.jackson at bluequartz.net
>> BlueQuartz Software                    www.bluequartz.net
>> Principal Software Engineer                  Dayton, Ohio
>>
>>
>>
>> On Mar 9, 2009, at 2:47 PM, Biao She wrote:
>>
>>  Yes, I have done that in my .cxx file, but it doesn't work...
>>> I also found a strange phenomenon. When I include the header files for
>>> DICOMParser and DICOMAppHelper in the header file of my class, I got an
>>> error said "it can't find those header files".
>>>
>>> I am wondering if this is related to the paraview plug-in CMake file. I
>>> use the following code in the CMake file to link the paraview (vtk) library:
>>> FIND_PACKAGE(ParaView REQUIRED)
>>> INCLUDE(${PARAVIEW_USE_FILE})
>>>
>>> Maybe this isn't enough to link the DICOMParser and DICOMAppHelper in
>>> paraview?
>>> Thanks,
>>>
>>> Biao
>>>
>>>
>>>
>>> On Mon, Mar 9, 2009 at 12:23 PM, Michael Jackson <
>>> mike.jackson at bluequartz.net> wrote:
>>> In your .cxx file add #include "vtkDICOMImageReaderVector.h" and the other
>>> classes that are just forward declared in the header file.
>>>
>>> _________________________________________________________
>>> Mike Jackson                  mike.jackson at bluequartz.net
>>> BlueQuartz Software                    www.bluequartz.net
>>> Principal Software Engineer                  Dayton, Ohio
>>>
>>>
>>>
>>>
>>> On Mar 9, 2009, at 2:17 PM, Biao She wrote:
>>>
>>> Hi everyone. This might be a silly question, but I am really confused.
>>> I am writing a class inherites from vtkDICOMImageReader. In the header
>>> file of vtkDICOMImageReader class, there are some forward declaration of
>>> these classes: vtkDICOMImageReaderVector, DICOMParser and DICOMAppHelper.
>>> The definition of these classes are included in the .cxx file. Normally, I
>>> should be able to use the methods in those classes in my class. However, I
>>> found that whenever I want to use something like
>>> "this->Parser->ClearAllDICOMTagCallbacks()" in my class. The compiler gives
>>> me back an error says that "invalid use of undefined type 'structure
>>> DICOMParser". In the above, "Parser" is an instance of DICOMParser. The same
>>> situation also happen to DICOMAppHelper and vtkDICOMImageReaderVector.
>>> Thanks very much for any of your help.
>>>
>>> Biao

>>>
>>> --
>>> She, Biao
>>> Department of Computing Science,
>>> University of Alberta, Edmonton, Canada