[vtkusers] vtkDataSetSurfaceFilter does not work properly onquadratic tet meshes

[Dominik Szczerba]

Many thanks John, I will give it a try.
	Dominik

John Platt pisze:
> Hi Dominik,
> 
> You may like to try vtkUnstructuredGridSurfaceFilter (attached). Note that 
> ComputeInputUpdateExtents() is not implemented (because I am not sure how 
> to!).
> 
> This filter is needed if you want to show surface edges of quadratic cells 
> without all the internal triangulation. I would be very pleased if it could 
> be added to VTK.
> 
> John.
> 
> ----- Original Message ----- 
> From: "Dominik Szczerba" <dominik at itis.ethz.ch>
> To: "VTK users group" <vtkusers at vtk.org>
> Sent: Monday, October 12, 2009 1:18 AM
> Subject: [vtkusers] vtkDataSetSurfaceFilter does not work properly 
> onquadratic tet meshes
> 
> 
>> Hi,
>>
>> Is there any reason vtkDataSetSurfaceFilter returns a linear triangle mesh 
>> from a quadratic tet mesh (by just breaking each quadratic element into 
>> several linear ones)? Is there a way in VTK to make the surface also 
>> quadratic?
>>
>> thanks,
>> Dominik
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