[Paraview] Curvilinear to (uniform) rectilinear grid?

[Magician]

Hi Oleg,


Sometimes CSV-formatted files are very convenient to check
the models' conditions.
So, if possible, I don't want to convert CSVs into Legacy VTKs.


I checked your data, and I found your problem.
Maybe the "Whole Extent" values of TableToStructuredGrid are wrong.

Try ((0, 13), (0, 10), (0, 11)). # 1st and 3rd arrays are swapped.
I got a rectangular source with these values successfully.


Magician


On 2013/06/26, at 4:58, paraview-request at paraview.org wrote:

> It works fine, thank you very much!
> 
> Looks like awk is one really powerful tool. I heard about it, but didn't actually use it before.
> 
> Thanks again,
> Oleg.
> 
> 25.06.2013, 23:53, "Karl König" <kkoenig11 at web.de>:
> > Hi,
> >
> > Concerning the *.pvsm file:
> > One needs to remove the absolute path to Oleg's home directory from the
> > state file prior to loading it. E.g. by means of GNU sed:
> >
> >    sed -i -e 's/\/home\/oleg\///' test.pvsm
> >
> > Concerning getting the data into ParaView:
> > I'm wondering why you do not convert your CSV based data into a format
> > ParaView can natively read rectilinear data from? It's fairly easy to
> > convert your CSV data into LegacyVTK file format. Given that you're on
> > Linux, you could apply the attached simple shell script to test.txt and
> > obtain test.vtk, your rectilinear data in VTK legacy format:
> >
> >    cd /home/oleg; sh convert.sh
> >
> > Hope that helps,
> > Karl
> >
> > Oleg Sergeev wrote, On 25.06.2013 18:50:
> >
> >>  I just checked again if I can open these files with PV4.01 - everything works fine. If it makes any difference, I use 64bit linux version.
> >>
> >>  Oleg.
> >>
> >>  25.06.2013, 20:45, "Stephen Wornom" <stephen.wornom at inria.fr>:
> >>>  Oleg Sergeev wrote:
> >>>>   Hi,
> >>>>
> >>>>   thanks for the answer! Here are the files.
> >>>>
> >>>>   The most general of my questions can be stated as "How to obtain a nice isosurface from this?". The isosurface should correspond to a particular value of, say, Field 5.
> >>>>
> >>>>   Regards,
> >>>>   Oleg.
> >>>>
> >>>>   22.06.2013, 17:06, "Magician" <f_magician at mac.com>:
> >>>>>   Hi Oleg,
> >>>>>
> >>>>>   Maybe everyone couldn't understand your problem.
> >>>>>   Could you upload your (x y z f) data?
> >>>>>   And if you can, it's better to upload your state files (*.pvsm).
> >>>  when I load the state file test.pvsm using the PV4.01 binary I get this
> >>>
> >>>  ERROR: In
> >>>  /home/utkarsh/Dashboards/MyTests/NightlyMaster/ParaViewSuperbuild-Release/paraview/src/paraview/VTK/Common/ExecutionModel/vtkExecutive.cxx,
> >>>  line 754
> >>>
> >>>  vtkPVCompositeDataPipeline (0x4ab5690): Algorithm
> >>>  vtkPTableToStructuredGrid(0x47f6200) returned failure for request:
> >>>  vtkInformation (0x4348690)
> >>>
> >>>  Debug: Off
> >>>
> >>>  Modified Time: 381187
> >>>
> >>>  Reference Count: 1
> >>>
> >>>  Registered Events: (none)
> >>>
> >>>  Request: REQUEST_DATA
> >>>
> >>>  FORWARD_DIRECTION: 0
> >>>
> >>>  ALGORITHM_AFTER_FORWARD: 1
> >>>
> >>>  FROM_OUTPUT_PORT: 0
> >>>  Stephen
> >>>>>   Magician
> >>>>>
> >>>>>   On 2013/06/22, at 1:00, paraview-request at paraview.org wrote:
> >>>>>>     Message: 4
> >>>>>>     Date: Fri, 21 Jun 2013 18:23:35 +0400
> >>>>>>     From: Oleg Sergeev <seoman at yandex.ru>
> >>>>>>     Subject: Re: [Paraview] Curvilinear to (uniform) rectilinear grid?
> >>>>>>     To: "paraview at paraview.org" <paraview at paraview.org>
> >>>>>>     Message-ID: <144611371824615 at web7f.yandex.ru>
> >>>>>>     Content-Type: text/plain
> >>>>>>
> >>>>>>     Hi all,
> >>>>>>
> >>>>>>     is there any answer to my question?
> >>>>>>
> >>>>>>     Regards,
> >>>>>>     Oleg.
> >>>>>>
> >>>>>>     19.06.2013, 17:16, "Oleg Sergeev" <seoman at yandex.ru>:
> >>>>>>>     Dear Paraview users,
> >>>>>>>
> >>>>>>>     I have a gridded data in a text file with lines such as x y z f(x, y, z), where each of x, y and z is equally spaced. I'd like to plot isosurfaces f == const. But when I import the file, I can only apply Table To Structured Grid filter, and it reads the file as if it were arbitrary curvilinear grid. How can I transform this grid to the rectilinear one? And is there any way to interpolate data between points, as grid size is 12*11*14 only? I could, for example, create finer uniform rectilinear mesh and estimate f on this mesh points, then plot it, but don't know how to do it. Any advice is appreciated.
> >>>>>>>
> >>>>>>>     Sorry if such a question appeared million times, google couldn't help.
> >>>>>>>
> >>>>>>>     Thanks,
> >>>>>>>     Oleg Sergeev,
> >>>>>>>     VNIIA, Moscow.