[Paraview] 2d dataset, can i use paraview to interpolate values on x, y surface?

[Ben Harrison]

Thanks Kevin,

That's almost what I was doing, but I had never managed to progress
that far (to the delaunay filter) due to crashes.

Some answers:

> Is your system fully updated?
Yes it is (I am responsible for it).

> Have you installed any software not from the repositories like
> graphics drivers?
Yes - the NVIDIA proprietary driver.

> What graphics card do you have?
NVidia Quadro NVS 295/PCIe/SSE2

> What graphics driver do you have?
The latest NVidia drivers (version current) offered through partner repos.

> Does Ubuntu have the equivalent of debuginfo packages? These
> restore all the information that is useful only to developers to
> the binaries and can make the output of a segfault _very_
> informative.
I don't know... does this Q&A answer that?
http://askubuntu.com/questions/53708/how-to-create-debuginfo-package

I've done as suggested in the accepted answer and now the repos offer
me the following new packages:
paraview-dbgsym - debug symbols for package paraview
paraview-dev-dbgsym - debug symbols for package paraview-dev
paraview-python-dbgsym - debug symbols for package paraview-python
libxdmf2-dbgsym - debug symbols for package libxdmf2
libvtkedge-dbgsym - debug symbols for package libvtkedge

Any recommendations for which one(s) I should install, and then next steps?

Cheers,
Ben

On 15 February 2013 21:50, Kevin H. Hobbs <hobbsk at ohio.edu> wrote:
> On 02/14/2013 05:57 PM, Ben Harrison wrote:
>> I have been trying to see if I can use paraview to do some analysis
>> and plotting of a 2d dataset exported in csv format.
>
> I believe csv files are imported as a sort of spreadsheet table.
>
> Use the "Table To Points" filter to convert them to points. My
> version even has a 2d option.
>
>> I just want to know if paraview is the right choice (or even a decent
>> choice) to do some basic visualisation of the data. I have a set of
>> x,y points with about 6 attributes. for example, one field/attribute
>> is temperature, another is heat flow in x direction, another heat flow
>> in y direction.
>>
>> I am failing to understand how to create for example a 'surface' or
>> contour plot of the temperature, or an 'arrow plot' of the 2d heat
>> flow.
>
> Are your points triangulated? That is do they have connectivity
> information already, or are they just points with associated
> data? Without connectivity information ParaView does not know
> which points to interpolate between. The Delaunay2d filter will
> add a very reasonable triangulation of your date.
>
> Paraview will then display the data as a surface.
>
> Because the csv reader does not know that let's say columns 3 and
> four form a vector : Use the Calculator to combine fields into a
> vector Field "3*iHat + Field 4 * jHat" should do it.
>
> Use the Glyph filter to display vectors.
>
>>
>> My efforts are also frustrated by regular but inconsistent
>> segmentation faults when I try to 'apply' filters.
>>
>> Ubuntu Linux x86_64
>> paraview 3.14.1 installed from repositories
>>
>
> I know inconsistent failures are very frustrating.
>
> If you can figure out when they occur we can help figure out why
> they occur and hopefully fix the problem.
>
> Is your system fully updated?
>
> Have you installed any software not from the repositories like
> graphics drivers?
>
> What graphics card do you have?
>
> What graphics driver do you have?
>
> Does Ubuntu have the equivalent of debuginfo packages? These
> restore all the information that is useful only to developers to
> the binaries and can make the output of a segfault _very_
> informative.
>
>