[Nek5000-users] visit visualization question

[nek5000-users at lists.mcs.anl.gov]

Hi Ammar!

When you want to make a really pretty picture (for publication), you can
apply the Resample operator, which allow you to sample the grid more
finely.  (The resampling happens on the original mesh ... everything does,
except the final rendering stage which is done by graphics hardware.)

Best,
Hank


On Thu, Nov 7, 2013 at 9:30 AM, <nek5000-users at lists.mcs.anl.gov> wrote:

> is there any filtering in visit to smooth out features in a given region
> or below certain length scale? it would be nice for visualization purposes
> assuming such features
> do not affect the simulation accuracy.
>
> Ammar
>
>
>
> On Wed, Nov 6, 2013 at 11:39 PM, <nek5000-users at lists.mcs.anl.gov> wrote:
>
>> Hi Praveen,
>>
>> If it is the issue I think you are referring to, then it has to do with
>> how OpenGL renders.  It takes a quadrilateral and splits it into two
>> triangles.  If the lower left and bottom right are cyan, and then lower
>> right and upper left are blue, then splitting into two triangles so that
>> lower left and bottom right are connected will make a cyan streak go
>> through the quad ... splitting so that lower right and upper left are
>> connect make a blue streak go through the quad.
>>
>> Best,
>> Hank
>>
>>
>> On Wed, Nov 6, 2013 at 8:27 PM, <nek5000-users at lists.mcs.anl.gov> wrote:
>>
>>> Hello
>>>
>>> When I use visit for color plots, I can almost see the mesh as in the
>>> attached example. Is this a problem with visit or is my results not correct
>>> ?
>>>
>>> https://www.dropbox.com/s/6gwnwiiide2yn6y/visit0000.png
>>> https://www.dropbox.com/s/a49vqx72ft2ajxy/visit0001.png
>>>
>>> Thanks
>>> praveen
>>>
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>>>
>>
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>
>
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