[Paraview] error linking a plugin - dll

[Utkarsh Ayachit]

Make sure your header and cxx files look something like follows:

vtkDataCalulator.h -----

#include "vtkDataSetAlgorithm.h"

class VTK_EXPORT vtkDataCalculator : public vtkDataSetAlgorithm
{
public:
   static vtkDataCalculator* New();
   vtkTypeRevisionMacro(vtkDataCalculator, vtkDataSetAlgorithm);
...
};
------------------------------------

vtkDataCalculator.cxx-----------------

#include "vtkDataCalculator.h"
#include "vtkObjectFactory.h"

vtkStandardNewMacro(vtkDataCalculator);
vtkCxxRevisionMacro(vtkDataCalculator, "$Revision$");

....
------------------------------------


Natalie Happenhofer wrote:
> Hi!
> I´m writing a new filter called vtkDataCalculator, which should 
> add/subtract/multiply/ divide the point data arrays of two datasets.
> Having written now a very simple version which just adds the point data, 
> I try to build it as a Plugin and I get the error
> 
> Linking Cxx Shared Library ...\bin\libDataCalculator.dll
> Creating library file: ..\bin\libDataCalculator.dll.a
> CMakeFiles\DataCalculator.dir\vtkDataCalculator.obj: In function 
> 'ZN17vtkDataCalculator3NewEv':
> C:/ParaviewSource/ParaView3/Plugins/vtkDataCalculator.h:14 undefined 
> reference to 'vtable for vtkDataCalculator'
> collect2: ld returned 1 exit status
> 
> 
> I believe that I miss to specify a Macro, I just put
> 
> vtkTypeMacro(vtkDataCalculator,vtkDataSetAlgorithm);
> 
> in my Headerfile.
> 
> If there is a Macro missing, does anyone know, which one?
> And if it´s something else .. what´s wrong?
> 
> thx for help,
> Natalie
> 
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