Arnaud,

Here is how my mesh is created

itkRegularSphere --> itkTriangleMeshtoSimplexMesh --> Deform mesh -->
itkSimplexMesh --> itkSimplexMeshToTriangleMesh --> itkVTKPolyDataWriter

I know that other than triangles , lines are also created  during this
conevrsion process, it is possible that the writer gets confused and
adds them all up hence the wrong polygon number.

I will do some further investigation once I have a chance

thanks for your help

Leila

On Wed, 2009-05-13 at 16:10 -0400, Arnaud Gelas wrote:
> Leila,
> 
> Quick trick to be able to use your file with vtk:change in your file the 
> line
>     POLYGONS 512 2306
> to
>     POLYGONS 512 2048
> 
> Now, I don't really understand what could be wrong with the writer in 
> review...
> 
> Which version of itk are you using?
> Did you use it with itk::Mesh or itk::QuadEdgeMesh?
> Can you explain shortly what kind of processing you are doing to get 
> this mesh (in order to be able to reproduce the error)?
> 
> Thanks,
> Arnaud
> 
> 
> Leila Baghdadi wrote:
> > On Wed, 2009-05-13 at 15:33 -0400, Arnaud Gelas wrote:
> >   
> >> Hi Leila,
> >>
> >> Can you join your file (MESH5.vtk), please?
> >>
> >> Thanks
> >> Arnaud
> >>
> >> Leila Baghdadi wrote:
> >>     
> >>> Hi guys
> >>>
> >>> I used the class itkVTKPolyDataWriter in Review directory 
> >>> to write my meshes as vtkPolyData but when I try to read them using
> >>> vtkPolyDataReader I get the following error,
> >>>
> >>> I checked the file and it seemed to have the format of vtkPolyData
> >>>
> >>>   
> >>>       
> >>>>>> a = vtkPolyDataReader()
> >>>>>> a.SetFileName("MESH5.vtk")
> >>>>>> a.Update()
> >>>>>>         
> >>>>>>             
> >>> ERROR: In /build/buildd/vtk-5.0.3/IO/vtkDataReader.cxx, line 1631
> >>> vtkPolyDataReader (0x95c650): Error reading ascii cell data! for file:
> >>> MESH5.vtk
> >>>
> >>>
> >>>
> >>> any ideas
> >>>
> >>> Leila
> >>>
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