[vtkusers] Fwd: Re:AW: vtkContourFilternotworkingonvtkStructuredGrid

[David E DeMarle]

vtkCellDataToPointData

http://www.vtk.org/doc/nightly/html/classvtkCellDataToPointData.html

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109



On Fri, Mar 12, 2010 at 10:02 AM, Sebastian Gatzka
<sebastian.gatzka at stud.tu-darmstadt.de> wrote:
> Great news!
>
>
>
> But I haven’t found a cell to points filter in the Doxygen yet.
>
> Which one does this interpolation?
>
>
>
> Von: David E DeMarle [mailto:dave.demarle at kitware.com]
> Gesendet: Freitag, 12. März 2010 15:40
> An: Sebastian Gatzka
> Cc: vtkusers
> Betreff: Re: [vtkusers] Fwd: Re:AW:
> vtkContourFilternotworkingonvtkStructuredGrid
>
>
>
> You can not contour cell centered values. Isocontouring finds the planes
> within each cell that lie on the chosen isovalues. With cell centered
> values, the nearest equivalent operation is threshold, which picks out the
> cells that have the chosen isovalues.
>
> You can apply the cell to points filter to interpolate cell centered values
> onto the points, then the contour will have something to work with inside
> each cell.
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 28 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-371-3971 x109
>
> On Fri, Mar 12, 2010 at 7:34 AM, Sebastian Gatzka
> <sebastian.gatzka at stud.tu-darmstadt.de> wrote:
>
> It's finite-volume-calculation scalar data, which is - as a matter of fact -
> stored at the cell centers.
> Maybe I have to interpolate to the points if contour filter doesn't work on
> cell data?!
>
>
>
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