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

Gena Bug archaerolog at mail.ru
Wed Nov 2 07:10:31 EDT 2011


Thank you very much -- you've saved me a lot of time!

One question about wavelet source -- can I generate rectilinear mesh with, for example, 
100x100x100 elements in [0, 1]x[0, 1]x[0, 1] extent?

-----|-
Gena.

On Tue November 1 2011 17:21:11 David E DeMarle wrote:
> 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.
> >>> > _______________________________________________
> >>> > Powered by www.kitware.com
> >>> > 
> >>> > Visit other Kitware open-source projects at
> >>> > http://www.kitware.com/opensource/opensource.html
> >>> > 
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> >>> > http://paraview.org/Wiki/ParaView
> >>> > 
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> >> 
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> >> 
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> >> 
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> > 
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> > 
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