[vtkusers] vtk image iterator

[Amy Squillacote]

Hi Pascale,

I'm forwarding your question back to the vtkusers list. Please keep the 
discussion on the list so other people can contribute and so the 
discussion is archived.

Thanks,
Amy

P B wrote:
> Hi Amy,
>  
>    yes, the library is included. I just found the mistake actually, I 
> used
> < unsigned short * >
>  
>  and should have used only
>  
> < unsigned short >
>  
> I have another question actually: how to use the iterator and access 
> pixel values. I have a feeling it has something to do with the 
> BeginSpan() and NextSpan() function but am not quite sure how to use 
> it. If you have any hints it would really help me figure it out,
>
> Thanks again for your help,
> Pascale
>
> ------------------------------------------------------------------------
>
> > Date: Mon, 28 Jul 2008 07:58:20 -0500
> > From: ahs at cfdrc.com
> > To: chose29 at hotmail.com
> > CC: vtkusers at vtk.org
> > Subject: Re: [vtkusers] vtk image iterator
> >
> > Hi Pascale,
> >
> > Are you linking against vtkFiltering.lib? That's the library containing
> > vtkImageIterator.
> >
> > - Amy
> >
> > P B wrote:
> > > Hi,
> > >
> > > I am trying to find how to iterate over an image using vtk. The
> > > class vtkImageIterator seems interesting but I keep getting an
> > > unresolved external error message. I tried testing the code such as
> > > given in:
> > >
> > > _/Filtering/Testing/Cxx/TestImageIterator.cxx _
> > > 
> <http://public.kitware.com/cgi-bin/viewcvs.cgi/*checkout*/Filtering/Testing/Cxx/TestImageIterator.cxx?root=VTK&content-type=text/plain>
> > >
> > >
> > > int ext[6] = { 0, 0, 0, 0, 0, 0 };
> > > vtkImageData *id = vtkImageData::New();
> > > id->SetExtent(ext);
> > > vtkImageIterator<unsigned short *> *it = new 
> vtkImageIterator<unsigned
> > > short *>(id, ext);
> > >
> > >
> > > The error message is the following:
> > >
> > > TPS.obj : error LNK2019: unresolved external symbol "public:
> > > __thiscall vtkImageIterator<unsigned short
> > > *>::vtkImageIterator<unsigned short *>(class vtkImageData *,int *)"
> > > (??0?$vtkImageIterator at PAG@@QAE at PAVvtkImageData@@PAH at Z) referenced in
> > > function "public: void __thiscall TPS::ExecTPS(class vtkPoints 
> *,class
> > > vtkPoints *)" (?ExecTPS at TPS@@QAEXPAVvtkPoints@@0 at Z
> > > <mailto:?ExecTPS at TPS@@QAEXPAVvtkPoints@@0 at Z>)
> > >
> > > Thank you for helping out!
> > > Pascale
> > >
> > > 
> ------------------------------------------------------------------------
> > > 
> ------------------------------------------------------------------------
> > >
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> >
> > --
> > Amy Squillacote Phone: (256) 726-4839
> > Computer Scientist Fax: (256) 726-4806
> > CFD Research Corporation Web: http://www.cfdrc.com
> > 215 Wynn Drive, Suite 501
> > Huntsville, AL 35805
> >
> >
>
>
> ------------------------------------------------------------------------

-- 
Amy Squillacote                    Phone: (256) 726-4839
Computer Scientist                 Fax: (256) 726-4806
CFD Research Corporation           Web: http://www.cfdrc.com
215 Wynn Drive, Suite 501
Huntsville, AL  35805