[Paraview] Area integration on a part of a surface

[Berk Geveci]

That's not how threshold works. Threshold includes cells as a whole or it
does not. What you want is Clip using a scalar value (or 2 clips if you
need upper and lower end clipping).

Best,
-berk



On Wed, May 1, 2013 at 11:49 AM, Ganesh Vijayakumar
<ganesh.iitm at gmail.com>wrote:

> Dear Berk Geveci,
>
>  Thanks for replying.
>
>  My dataset is a surface dataset.
>
>  So if my threshold goes through one of the surface data faces, won't it
> take just the area that it cuts through and neglect the part it doesn't
> contain?
>
> ganesh
>
>
> On Wed, May 1, 2013 at 10:48 AM, Berk Geveci <berk.geveci at kitware.com>wrote:
>
>> Hi Ganesh,
>>
>> I am not sure that I follow you. Is this a surface dataset or a volume?
>> If it is a volume, you need to apply Extract Surface before you can
>> integrate over it. If it is a surface, I would expect that the area would
>> change if you change the value of the threshold and bring in more cells.
>>
>> Best,
>> -berk
>>
>>
>> On Tue, Apr 30, 2013 at 5:07 PM, Ganesh Vijayakumar <
>> ganesh.iitm at gmail.com> wrote:
>>
>>> hi!
>>>
>>>   I'm interested in integrating over a part of an area on a surface.
>>> Like here
>>>
>>> www.personal.psu.edu/guv106/paraviewIntegrateVariables.png
>>>
>>>   Now, I use thresholding on a variable that I compute using the Coords
>>> on the surface to extract the specific area over which I want the integral.
>>> The problem is the the area integral is extremely dependent on the details
>>> of thresholding. If I change the thresholding just enough to include
>>> another layer of cells in the original data, then the integral value
>>> changes... else for any changes in the thresholding limits, the integral
>>> does not change. And this is despite using Point data on the integral. Is
>>> there anyway, I can get a smooth variation of the area integrals with the
>>> change of thresholding limits? In other words, an actual area integral!
>>>
>>> ganesh
>>>
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>>
>
>
> --
> ganesh
>
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