[Paraview] Slicing Cartesian meshes

[Sebastien Jourdain]

Michael,

in the same manner if you are using ParaView/master, you can use the
crinkle option in the slice that will do exactly the same thing as
Karl was explaining but with a simpler interaction. It will basically
keep the full cells along the slice.

Or if you are not on master, you can achieve exactly the same action
as the crinkle slice by using the ExtractCellByRegion and by checking
"Extract only intersected" and "Extract intersected" checkbox in the
filter panel.

Seb

On Fri, Jul 27, 2012 at 10:41 AM, Karl König <kkoenig11 at web.de> wrote:
> Michael,
>
> Yes, it is. If you want to keep the hex/quad structure, you can resort
> to the Threshold filter, thresholding based on coordinate values. See
> yesterday's posting http://markmail.org/message/wooi4pdb7j4h6z36 on how
> to get coordinates as additional data arrays. Note, though, that with
> the Threshold filter you won't be able to cut through a hex, just along
> its faces. So, only if the underlying hexahedra are aligned along your
> chosen slice, you get be a smooth surface.
> There might be another vtk filter that is unexposed in the ParaView GUI
> that actually cuts through hexahedra without resorting to triangulation
> of the surface. But that I don't know.
>
> Karl
>
>
> Michael Robinson wrote, On 27.07.2012 16:15:
>>
>> I have a Cartesian volume grid consisting of hex cells of varying size
>> in VTK legacy unstructured format.  When I do a (Cartesian) slice
>> through the grid, the result is displayed as a triangulated surface
>> instead of the expected surface of quads.  Is that just a result of
>> the slicing process or is there a way to have ParaView display that
>> surface as the expected surface of quads?  Thanks!
>>
>> Michael A. Robinson
>> Kratos/Digital Fusion
>> Huntsville, AL
>
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