[Paraview] How can I fix the problem?

[Biao She]

I think I have found a way to solve the problem. Thanks for your help. It
gave me useful hints.
I first moved the source files (.cxx and .h files) for vtkMyReader into the
$paraview_sourcet/VTK/IO directory, and modified the CMakelist.txt in this
directory by adding vtkMyReader.cxx into the "kit_src" list. After that, I
wrote two XML files to expose this reader. Everything works fine.
Still, I have questions. According to the paraview user guide, the first
step shouldn't be neccessary. I should be able to write a plugin without the
need to change paraview source code. I am not very familar with CMake and
VTK, but I am sure that the problem must be in my CMakeList.txt file for the
plugin. The file looks like the following:

FIND_PACKAGE(ParaView REQUIRED)
INCLUDE(${PARAVIEW_USE_FILE})

ADD_PARAVIEW_PLUGIN(myReader "1.0" SERVER_MANAGER_SOURCES
vtkMyReader.cxx)
ADD_PARAVIEW_PLUGIN(myReader "1.0" GUI_RESOURCE_FILES pqReader.xml)
ADD_PARAVIEW_PLUGIN(myReader "1.0" SERVER_MANAGER_XML reader.xml)

I am using the Cmake cdt 4 generator. Could anyone tell me how to change the
cmake file to make my plugin works without changing the paraview source
code?

Thanks


On Wed, Feb 25, 2009 at 8:55 PM, Biao She <shebiao at gmail.com> wrote:

> Thanks for your reply.
> I have included vtkObjectFactory and have used
> vtkStandardNewMacro(vtkMyReader) in the .cxx file. The class filename and
> class name also match the class=attribute in the XML file. But the error
> message still appeares.
>
> On Wed, Feb 25, 2009 at 8:03 PM, David E DeMarle <dave.demarle at kitware.com
> > wrote:
>
>> Sorry, I should have thought before I replied.  Of course you have XML
>> or else paraview wouldn't know to ask the ProcessModule to try to
>> create a vtkMyReader.
>>
>> Check for the inclusion of the vtkObjectFactory and the use of
>> vtkStandardNewMacro in the .cxx file. Also check that the classes
>> filename and class name match that in of the class= attribute in the
>> XML file.
>>
>>
>> On Wed, Feb 25, 2009 at 9:40 PM, David E DeMarle
>> <dave.demarle at kitware.com> wrote:
>> > Have you written the xml configuration file that tells ParaView how to
>> > call the reader?
>> >
>> > On Wed, Feb 25, 2009 at 7:15 PM, Biao She <shebiao at gmail.com> wrote:
>> >> Hi everyone.
>> >> I am trying to write a new reader plugin for Paraview. However, I get
>> the
>> >> following error when I try to use it:
>> >>
>> >> ERROR: In
>> >>
>> /usr/scratch/bshe/Paraview/ParaView-3.4.0/Servers/Common/vtkProcessModule.cxx,
>> >> line 1079
>> >> vtkProcessModule (0x8c24658): Cannot create object of type
>> "vtkMyReader".
>> >> while processing
>> >> Message 0 = New
>> >>   Argument 0 = string_value {vtkMyReader}
>> >>   Argument 1 = id_value {84}
>> >>
>> >>
>> >>
>> >> ERROR: In
>> >>
>> /usr/scratch/bshe/Paraview/ParaView-3.4.0/Servers/Common/vtkProcessModule.cxx,
>> >> line 1080
>> >> vtkProcessModule (0x8c24658): Aborting execution for debugging
>> purposes.
>> >>
>> >> It seems to be a vtkMyReader construction problem. (Please correct me
>> if
>> >> not)
>> >> My vtkMyReader is derived from vtkImageReader2, and it has a public
>> static
>> >> method for construction in .h file - static vtkDICOMImageReaderCopy
>> *New().
>> >> I am wondering if I have to write some code for this method in the
>> >> vtkMyReader implementation (.cxx file) to fix the error?
>> >>
>> >> Thanks
>> >>
>> >> Biao
>> >>
>> >> _______________________________________________
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>> >>
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>> >>
>> >
>> >
>> >
>> > --
>> > David E DeMarle
>> > Kitware, Inc.
>> > R&D Engineer
>> > 28 Corporate Drive
>> > Clifton Park, NY 12065-8662
>> > Phone: 518-371-3971 x109
>> >
>>
>>
>>
>> --
>> David E DeMarle
>> Kitware, Inc.
>> R&D Engineer
>> 28 Corporate Drive
>> Clifton Park, NY 12065-8662
>> Phone: 518-371-3971 x109
>>
>
>
>
> --
> She, Biao
> Department of Computing Science,
> University of Alberta, Edmonton, Canada
>



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