[Paraview] Interpolate data from an unstructured mesh to a structured one

[David E DeMarle]

Or just use the wavelet source to make the image data to sample onto.

David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909



On Tue, Nov 1, 2011 at 9:07 AM, Sebastien Jourdain
<sebastien.jourdain at kitware.com> wrote:
> Hi Gena,
>
> you can also use "Resample with dataset". The only missing part will
> be your destination dataset that you want to use for sampling your
> original data.
> You can look at that documentation to create an empty one manually by
> creating a legacy VTK file.
> http://www.vtk.org/VTK/img/file-formats.pdf
> I've paste the content of a rectilinear one below. You will just need
> to tweak some parameters.
>
> Seb
>
> ===== Your sampling dataset could look like that file: probe.vtk =====
>
> # vtk DataFile Version 3.0
> vtk output
> ASCII
> DATASET STRUCTURED_POINTS
> DIMENSIONS 11 11 11
> SPACING 0.004 0.004 0.012
> ORIGIN -0.02 -0.02 -0.06
>
> On Tue, Nov 1, 2011 at 3:57 AM, Gena Bug <archaerolog at mail.ru> wrote:
>> Hello, Robert!
>>
>> Thank you for quick response! Seems, this plugin is what I'm looking for. But can you
>> explain me how can I compile it? I can't find any readme in the repository and I don't have
>> enough experience with building paraview plugins. My platform is Debian testing amd64.
>>
>> -----|-
>> Gena.
>>
>> On Mon October 31 2011 19:54:25 Robert Maynard wrote:
>>> You might be interested in the code at:
>>> https://github.com/berkgeveci/ComparativeVis
>>>
>>> It has a filter called Cross Mesh Field Evaluation which maps a
>>> property from a unstructured mesh
>>> onto a structured mesh in parallel.
>>>
>>> On Mon, Oct 31, 2011 at 10:48 AM, Gena Bug <archaerolog at mail.ru> wrote:
>>> > Hello!
>>> >
>>> > I have an interesting task -- I need to move the cell data from an
>>> > unstructured mesh to corresponding cartesian mesh. Original domain is an
>>> > alpha-degree 3D sector (alpha is a parameter, sector' angle, may be
>>> > pi/3, pi/4, ...) with periodic side boundaries and unstructured
>>> > discretization (hexahedral and wedge cells). The target domain is a cube
>>> > that contains the whole cylinder (sum of N sectors: N*alpha = 2*pi). And
>>> > my task is to generate cartezian mesh in the target domain (cube) and
>>> > interpolate data from the original mesh to the cartezian.
>>> >
>>> > I'm almost sure about answer, but I must ask: is there a combination of
>>> > filters that can do the trick?
>>> >
>>> > I think to write a python script that can do this, but I don't know how
>>> > to: a) create a cartezian mesh and
>>> > b) iterate throw mesh cells and their nodes.
>>> >
>>> > ----|-
>>> > Gena.
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>
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>
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