[Paraview] Transforming a spherical slice into a map projection

[Aashish Chaudhary]

Dear Marie,

You can use vtkGeoSphereTransform class to transfrom from Cartesian
(Spherical grid X,Y,Z) to Sphereical (Lat,Lon coordinates). Once you have
Lat-Lon, you can just treat them as in flat projection (Projection 4326).
This class is not exposed in ParaView, so you would have to use Python to
do the job or write a plugin for Paraview. Please let us know if you have
any questions.

Thanks,


On Fri, Jul 17, 2015 at 8:49 PM, Marie Kajan <marie.kajan at gmail.com> wrote:
>
> Hi Utkarsh,
>
> Here's a small sample (plus the saved state for a sample slice, if that
helps):
>
> https://www.dropbox.com/s/hpp2y8bbkjn34z3/solution-00000.0000.vtk?dl=0
> https://www.dropbox.com/s/94rfo305ljeqtgk/solution-00000.pvsm?dl=0
>
> Thanks a lot!
>
> Marie
>
>
> On Wed, Jul 15, 2015 at 10:41 PM, Utkarsh Ayachit <
utkarsh.ayachit at kitware.com> wrote:
>>
>> Marie,
>>
>> Do you have a sample dataset? That'll make it easier to determine the
>> filters etc. you can apply.
>>
>> Utkarsh
>>
>> On Wed, Jul 15, 2015 at 8:03 PM, Marie Kajan <marie.kajan at gmail.com>
wrote:
>> > I'm a new user and am having difficulty navigating Paraview. I would
really
>> > appreciate any pointers!
>> >
>> > I'm using code called ASPECT (aspect.dealii.org) to generate models of
the
>> > Earth's interior. My data are unstructured grids that contain
different data
>> > arrays: velocity, temperature, etc. I hope that makes sense. I have a
>> > spherical volume, essentially. I know how to play around with the basic
>> > filters, and I'm able to take spherical slices which represent
>> > velocity/temperature/etc. fields at different depths in the Earth.
>> >
>> > But, I'm not sure how to "flatten" these slices into a map projection
(for
>> > example, a simple rectangle with latitude-longitude axes). Most
tutorials
>> > don't deal with VTK inputs and I'm not familiar enough with Paraview to
>> > figure out my own script.
>> >
>> > Thanks!
>> >
>> > Marie
>> >
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>
>
>
>
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--
| Aashish Chaudhary
| Technical Leader
| Kitware Inc.
| http://www.kitware.com/company/team/chaudhary.html
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