[vtk-developers] vtkExplicitCell

[David Thompson]

Hi all,

You are correct that the GSoC project is not using vtkExplicitCell. Instead, each NURBS patch will be a vtkStructuredGrid of control points with field data specifying knots. Collections of NURBS could live in a multiblock dataset.

If you would prefer NURBS to be represented as cells instead of a special way to use a dataset, then we can keep vtkExplicit cell and adapt to it. But given that there are many different spline interpolants (NURBS, NURCCs, T-splines, point-based splines) it might be better to just consider them as datasets that are discretized at some point in a pipeline than as cells in their own right.

	David

On Jul 2, 2015, at 10:49 AM, Bill Lorensen <bill.lorensen at gmail.com> wrote:

> All cells have a method IsExplicitCell(). They all return 0. I assume
> we should keep this method for backward compatibility?
> 
> Bill
> 
> 
> On Thu, Jul 2, 2015 at 10:27 AM, Berk Geveci <berk.geveci at kitware.com> wrote:
>> I say yank it.
>> 
>> On Thu, Jul 2, 2015 at 9:12 AM, Bill Lorensen <bill.lorensen at gmail.com>
>> wrote:
>>> 
>>> Folks,
>>> 
>>> vtkExplicitCell is not used nor tested anywhere in vtk.
>>> 
>>> Can it be removed?
>>> 
>>> Bill
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> 
> 
> 
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