Re: [Paraview] Finding volume enclosed by a contour.

[ronald.fowler]

I was trying IntegrateVaraiables with OpenFoam data last week and it seemed to 
give the areas OK, though the data had been converted to EnSight format- might 
be worth a try?

Ron fowler


From: ParaView [paraview-boun...@paraview.org] on behalf of Felipe Bordeu 
[felipebor...@gmail.com]
Sent: 05 March 2017 09:27
Cc: paraview
Subject: Re: [Paraview] Finding volume enclosed by a contour.

The volume is nothing more that the integral of one (1). So make a calculator 
with a new variable named "rho" and with the value 1 then apply the intégrate 
variable filter to compute the volume.

Be careful no to have bars in your mesh, they will also contribute to the 
volume calculation.

In general you must filter your mesh by dimensionality (only 3D cell or only 
2D...)

Hope it helps

Felipe


Le 4 mars 2017 7:46 PM, "Gallagher, Timothy P" 
mailto:tim.gallag...@gatech.edu>> a écrit :

I was suggesting trying a pipeline like:


OpenFOAM Reader -> Threshold -> IntegrateVariables -> IntegrateVariables


So your second IV filter is applied to the first IV filter.


Again, no idea if that will help. Hopefully somebody else can come along and 
give you a solution.


Tim



From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 1:44 PM
To: Gallagher, Timothy P; paraview@paraview.org<mailto:paraview@paraview.org>
Subject: RE: Finding volume enclosed by a contour.


Hi Tim;



Yes I do think so it is somehow related to the OpenFOAM reader. I just tried a 
tutorial case from the CFD package and I still have the same data set with no 
additional data related to the volume/ area/ length.



I am not sure if I understood your idea right, do you mean apply 
integrateVariables twice on the same threshold data set?



“Sorry, I tried!”

No worries this has been a long standing problem for my work. I am really happy 
that you shared your ideas with me.



Saideep



From: Gallagher, Timothy P 
[mailto:tim.gallag...@gatech.edu<mailto:tim.gallag...@gatech.edu>]
Sent: 04 March 2017 18:07
To: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>; 
paraview@paraview.org<mailto:paraview@paraview.org>
Subject: Re: Finding volume enclosed by a contour.



Hmmm, interesting. It must be a function of the type of data from the OpenFOAM 
reader and I am unfamiliar with that reader.



All of my datasets are structured and behave the way I mentioned earlier. I'm 
not sure how to get the volume from the dataset you have.



Somebody else will have to chime in on this one. Just out of curiosity, if you 
IntegrateVariables again, does it condense the data into a single set of 
values? (That's a totally random guess -- maybe the first IntegrateVariables is 
coming up with the cell-averaged values from an unstructured dataset, and the 
second would do the integral of all the cell-averages).



Sorry, I tried!



Tim





From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 1:00 PM
To: Gallagher, Timothy P; paraview@paraview.org<mailto:paraview@paraview.org>
Subject: RE: Finding volume enclosed by a contour.



Tim,



I did try to vary from pointData to cellData but I see the same fields present. 
That is, I see no additional field being added.



Attached is a screenshot (all the data from U are the variables being computed 
from my solver). I tried it over 4.x and 5.x versions of paraview so, I guess I 
am doing something wrong.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:36
To: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>; 
paraview@paraview.org<mailto:paraview@paraview.org>
Subject: Re: Finding volume enclosed by a contour.



The IntegrateVariables filter creates a spreadsheet of PointData (or CellData, 
depending on where your data is stored in the filter just before 
IntegrateVariables) with the integral of your data over the volume/area/length 
depending on if it is 3D/2D/1D data respectively.



It also adds a field to the CellData array that will be Volume/Area/Length 
respectively.



My guess is if you aren't seeing it immediately it is because you are looking 
at the PointData array and not the CellData array. In the SpreadSheetView that 
opens up, change the Attribute dropdown from Point Data to Cell Data.



Also, as a note -- the values for your variables (pressure, velocity, whatever) 
are multiplied by the length scale, so if you want the average value in the 
domain, you need to divide it by the length scale.



Tim





From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 12:30 PM
To: Gallagher, Timothy P; paraview@paraview.org<mailto:paraview@paraview.org>
Subject: RE: Finding volume enclosed by a conto

Re: [Paraview] Finding volume enclosed by a contour.

[Felipe Bordeu]

The volume is nothing more that the integral of one (1). So make a
calculator with a new variable named "rho" and with the value 1 then apply
the intégrate variable filter to compute the volume.

Be careful no to have bars in your mesh, they will also contribute to the
volume calculation.

In general you must filter your mesh by dimensionality (only 3D cell or
only 2D...)

Hope it helps

Felipe


Le 4 mars 2017 7:46 PM, "Gallagher, Timothy P"  a
écrit :

> I was suggesting trying a pipeline like:
>
>
> OpenFOAM Reader -> Threshold -> IntegrateVariables -> IntegrateVariables
>
>
> So your second IV filter is applied to the first IV filter.
>
>
> Again, no idea if that will help. Hopefully somebody else can come along
> and give you a solution.
>
>
> Tim
>
>
> --
> *From:* Saideep Pavuluri 
> *Sent:* Saturday, March 4, 2017 1:44 PM
> *To:* Gallagher, Timothy P; paraview@paraview.org
> *Subject:* RE: Finding volume enclosed by a contour.
>
>
> Hi Tim;
>
>
>
> Yes I do think so it is somehow related to the OpenFOAM reader. I just
> tried a tutorial case from the CFD package and I still have the same data
> set with no additional data related to the volume/ area/ length.
>
>
>
> I am not sure if I understood your idea right, do you mean apply
> integrateVariables twice on the same threshold data set?
>
>
>
> “Sorry, I tried!”
>
> No worries this has been a long standing problem for my work. I am really
> happy that you shared your ideas with me.
>
>
>
> Saideep
>
>
>
> *From:* Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
> *Sent:* 04 March 2017 18:07
> *To:* Saideep Pavuluri ;
> paraview@paraview.org
> *Subject:* Re: Finding volume enclosed by a contour.
>
>
>
> Hmmm, interesting. It must be a function of the type of data from the
> OpenFOAM reader and I am unfamiliar with that reader.
>
>
>
> All of my datasets are structured and behave the way I mentioned earlier.
> I'm not sure how to get the volume from the dataset you have.
>
>
>
> Somebody else will have to chime in on this one. Just out of curiosity, if
> you IntegrateVariables again, does it condense the data into a single set
> of values? (That's a totally random guess -- maybe the first
> IntegrateVariables is coming up with the cell-averaged values from an
> unstructured dataset, and the second would do the integral of all the
> cell-averages).
>
>
>
> Sorry, I tried!
>
>
>
> Tim
>
>
> --
>
> *From:* Saideep Pavuluri 
> *Sent:* Saturday, March 4, 2017 1:00 PM
> *To:* Gallagher, Timothy P; paraview@paraview.org
> *Subject:* RE: Finding volume enclosed by a contour.
>
>
>
> Tim,
>
>
>
> I did try to vary from pointData to cellData but I see the same fields
> present. That is, I see no additional field being added.
>
>
>
> Attached is a screenshot (all the data from U are the variables being
> computed from my solver). I tried it over 4.x and 5.x versions of paraview
> so, I guess I am doing something wrong.
>
>
>
> Saideep
>
>
>
> *From:* Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu
> ]
> *Sent:* 04 March 2017 17:36
> *To:* Saideep Pavuluri ;
> paraview@paraview.org
> *Subject:* Re: Finding volume enclosed by a contour.
>
>
>
> The IntegrateVariables filter creates a spreadsheet of PointData (or
> CellData, depending on where your data is stored in the filter just before
> IntegrateVariables) with the integral of your data over the
> volume/area/length depending on if it is 3D/2D/1D data respectively.
>
>
>
> It also adds a field to the CellData array that will be Volume/Area/Length
> respectively.
>
>
>
> My guess is if you aren't seeing it immediately it is because you are
> looking at the PointData array and not the CellData array. In the
> SpreadSheetView that opens up, change the Attribute dropdown from Point
> Data to Cell Data.
>
>
>
> Also, as a note -- the values for your variables (pressure, velocity,
> whatever) are multiplied by the length scale, so if you want the average
> value in the domain, you need to divide it by the length scale.
>
>
>
> Tim
>
>
> --
>
> *From:* Saideep Pavuluri 
> *Sent:* Saturday, March 4, 2017 12:30 PM
> *To:* Gallagher, Timothy P; paraview@paraview.org
> *Subject:* RE: Finding volume enclosed by a contour.
>
>
>
> Thanks Tim;
>
>
>
> I could precisely extract the bubble using the threshold filter as you
> said (attached picture).
>
>
>
> Coming to the 2nd step: I applied the integrate variables filter on the
> threshold data but I get the general data set values within individual
> cells like the computed velocity, pressure, etc….
>
>
>
> How do I integrate the the region in space to find the enclosed volume?
>
>
>
> Sorry, if it’s a basic question.
>
>
>
> Saideep
>
>
>
> *From:* Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu
> ]
> *Sent:* 04 March 2017 17:09
> *To:* Saideep Pavuluri ;
> paraview@paraview.org
> *Subject:* Re: Finding volume enclosed by a contour.
>
>
>
> Your best bet would be to use th

Re: [Paraview] Finding volume enclosed by a contour.

[Gallagher, Timothy P]

I was suggesting trying a pipeline like:


OpenFOAM Reader -> Threshold -> IntegrateVariables -> IntegrateVariables


So your second IV filter is applied to the first IV filter.


Again, no idea if that will help. Hopefully somebody else can come along and 
give you a solution.


Tim



From: Saideep Pavuluri 
Sent: Saturday, March 4, 2017 1:44 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.


Hi Tim;



Yes I do think so it is somehow related to the OpenFOAM reader. I just tried a 
tutorial case from the CFD package and I still have the same data set with no 
additional data related to the volume/ area/ length.



I am not sure if I understood your idea right, do you mean apply 
integrateVariables twice on the same threshold data set?



“Sorry, I tried!”

No worries this has been a long standing problem for my work. I am really happy 
that you shared your ideas with me.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 18:07
To: Saideep Pavuluri ; paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



Hmmm, interesting. It must be a function of the type of data from the OpenFOAM 
reader and I am unfamiliar with that reader.



All of my datasets are structured and behave the way I mentioned earlier. I'm 
not sure how to get the volume from the dataset you have.



Somebody else will have to chime in on this one. Just out of curiosity, if you 
IntegrateVariables again, does it condense the data into a single set of 
values? (That's a totally random guess -- maybe the first IntegrateVariables is 
coming up with the cell-averaged values from an unstructured dataset, and the 
second would do the integral of all the cell-averages).



Sorry, I tried!



Tim





From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 1:00 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.



Tim,



I did try to vary from pointData to cellData but I see the same fields present. 
That is, I see no additional field being added.



Attached is a screenshot (all the data from U are the variables being computed 
from my solver). I tried it over 4.x and 5.x versions of paraview so, I guess I 
am doing something wrong.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:36
To: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>; 
paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



The IntegrateVariables filter creates a spreadsheet of PointData (or CellData, 
depending on where your data is stored in the filter just before 
IntegrateVariables) with the integral of your data over the volume/area/length 
depending on if it is 3D/2D/1D data respectively.



It also adds a field to the CellData array that will be Volume/Area/Length 
respectively.



My guess is if you aren't seeing it immediately it is because you are looking 
at the PointData array and not the CellData array. In the SpreadSheetView that 
opens up, change the Attribute dropdown from Point Data to Cell Data.



Also, as a note -- the values for your variables (pressure, velocity, whatever) 
are multiplied by the length scale, so if you want the average value in the 
domain, you need to divide it by the length scale.



Tim





From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 12:30 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.



Thanks Tim;



I could precisely extract the bubble using the threshold filter as you said 
(attached picture).



Coming to the 2nd step: I applied the integrate variables filter on the 
threshold data but I get the general data set values within individual cells 
like the computed velocity, pressure, etc….



How do I integrate the the region in space to find the enclosed volume?



Sorry, if it’s a basic question.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:09
To: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>; 
paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



Your best bet would be to use the Threshold filter to extract the region where 
the scalar is greater (or less than) 0.5 and then use the IntegrateVariables 
filter on the Threshold.



It's not entirely clear your exact pipeline, but it sounds like you are using 
the IntegrateVariables filter on the Contour, which would give you the surface 
area of the region instead.



Tim





From: ParaView 
mailto:paraview-boun...@paraview.org>> on behalf 
of Saideep Pavuluri 
mailto:said

Re: [Paraview] Finding volume enclosed by a contour.

[Saideep Pavuluri]

Hi Tim;

Yes I do think so it is somehow related to the OpenFOAM reader. I just tried a 
tutorial case from the CFD package and I still have the same data set with no 
additional data related to the volume/ area/ length.

I am not sure if I understood your idea right, do you mean apply 
integrateVariables twice on the same threshold data set?



"Sorry, I tried!"
No worries this has been a long standing problem for my work. I am really happy 
that you shared your ideas with me.

Saideep

From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 18:07
To: Saideep Pavuluri ; paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.


Hmmm, interesting. It must be a function of the type of data from the OpenFOAM 
reader and I am unfamiliar with that reader.



All of my datasets are structured and behave the way I mentioned earlier. I'm 
not sure how to get the volume from the dataset you have.



Somebody else will have to chime in on this one. Just out of curiosity, if you 
IntegrateVariables again, does it condense the data into a single set of 
values? (That's a totally random guess -- maybe the first IntegrateVariables is 
coming up with the cell-averaged values from an unstructured dataset, and the 
second would do the integral of all the cell-averages).



Sorry, I tried!



Tim


From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 1:00 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.


Tim,



I did try to vary from pointData to cellData but I see the same fields present. 
That is, I see no additional field being added.



Attached is a screenshot (all the data from U are the variables being computed 
from my solver). I tried it over 4.x and 5.x versions of paraview so, I guess I 
am doing something wrong.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:36
To: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>; 
paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



The IntegrateVariables filter creates a spreadsheet of PointData (or CellData, 
depending on where your data is stored in the filter just before 
IntegrateVariables) with the integral of your data over the volume/area/length 
depending on if it is 3D/2D/1D data respectively.



It also adds a field to the CellData array that will be Volume/Area/Length 
respectively.



My guess is if you aren't seeing it immediately it is because you are looking 
at the PointData array and not the CellData array. In the SpreadSheetView that 
opens up, change the Attribute dropdown from Point Data to Cell Data.



Also, as a note -- the values for your variables (pressure, velocity, whatever) 
are multiplied by the length scale, so if you want the average value in the 
domain, you need to divide it by the length scale.



Tim





From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 12:30 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.



Thanks Tim;



I could precisely extract the bubble using the threshold filter as you said 
(attached picture).



Coming to the 2nd step: I applied the integrate variables filter on the 
threshold data but I get the general data set values within individual cells 
like the computed velocity, pressure, etc



How do I integrate the the region in space to find the enclosed volume?



Sorry, if it's a basic question.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:09
To: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>; 
paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



Your best bet would be to use the Threshold filter to extract the region where 
the scalar is greater (or less than) 0.5 and then use the IntegrateVariables 
filter on the Threshold.



It's not entirely clear your exact pipeline, but it sounds like you are using 
the IntegrateVariables filter on the Contour, which would give you the surface 
area of the region instead.



Tim





From: ParaView 
mailto:paraview-boun...@paraview.org>> on behalf 
of Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 11:36 AM
To: paraview@paraview.org
Subject: [Paraview] Finding volume enclosed by a contour.



Hi guys;



I am using a numerical method (Volume of fluid, just for information) to look 
at the breaking of a bubble in a micro-channel. Attached picture.



As mostly, the bubbles are of uniform size, I would like to know the volume of 
any one bubble formed.



The bubble is represented by a scalar data se

Re: [Paraview] Finding volume enclosed by a contour.

[Gallagher, Timothy P]

Hmmm, interesting. It must be a function of the type of data from the OpenFOAM 
reader and I am unfamiliar with that reader.


All of my datasets are structured and behave the way I mentioned earlier. I'm 
not sure how to get the volume from the dataset you have.


Somebody else will have to chime in on this one. Just out of curiosity, if you 
IntegrateVariables again, does it condense the data into a single set of 
values? (That's a totally random guess -- maybe the first IntegrateVariables is 
coming up with the cell-averaged values from an unstructured dataset, and the 
second would do the integral of all the cell-averages).


Sorry, I tried!


Tim



From: Saideep Pavuluri 
Sent: Saturday, March 4, 2017 1:00 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.


Tim,



I did try to vary from pointData to cellData but I see the same fields present. 
That is, I see no additional field being added.



Attached is a screenshot (all the data from U are the variables being computed 
from my solver). I tried it over 4.x and 5.x versions of paraview so, I guess I 
am doing something wrong.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:36
To: Saideep Pavuluri ; paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



The IntegrateVariables filter creates a spreadsheet of PointData (or CellData, 
depending on where your data is stored in the filter just before 
IntegrateVariables) with the integral of your data over the volume/area/length 
depending on if it is 3D/2D/1D data respectively.



It also adds a field to the CellData array that will be Volume/Area/Length 
respectively.



My guess is if you aren't seeing it immediately it is because you are looking 
at the PointData array and not the CellData array. In the SpreadSheetView that 
opens up, change the Attribute dropdown from Point Data to Cell Data.



Also, as a note -- the values for your variables (pressure, velocity, whatever) 
are multiplied by the length scale, so if you want the average value in the 
domain, you need to divide it by the length scale.



Tim





From: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 12:30 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.



Thanks Tim;



I could precisely extract the bubble using the threshold filter as you said 
(attached picture).



Coming to the 2nd step: I applied the integrate variables filter on the 
threshold data but I get the general data set values within individual cells 
like the computed velocity, pressure, etc….



How do I integrate the the region in space to find the enclosed volume?



Sorry, if it’s a basic question.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:09
To: Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>; 
paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



Your best bet would be to use the Threshold filter to extract the region where 
the scalar is greater (or less than) 0.5 and then use the IntegrateVariables 
filter on the Threshold.



It's not entirely clear your exact pipeline, but it sounds like you are using 
the IntegrateVariables filter on the Contour, which would give you the surface 
area of the region instead.



Tim





From: ParaView 
mailto:paraview-boun...@paraview.org>> on behalf 
of Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 11:36 AM
To: paraview@paraview.org
Subject: [Paraview] Finding volume enclosed by a contour.



Hi guys;



I am using a numerical method (Volume of fluid, just for information) to look 
at the breaking of a bubble in a micro-channel. Attached picture.



As mostly, the bubbles are of uniform size, I would like to know the volume of 
any one bubble formed.



The bubble is represented by a scalar data set represented by 1 and bounded by 
the same data set with values 0.



I think to clip the region enclosing one bubble and draw a contour where the 
scalar value is 0.5. Now, I tried the integrate variables filter but I did not 
find a data representing the volume.  Any idea how can I get the volume 
enclosed by this contour?



Any help appreciated.



Thanks;

SaiD
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Re: [Paraview] Finding volume enclosed by a contour.

[Gallagher, Timothy P]

The IntegrateVariables filter creates a spreadsheet of PointData (or CellData, 
depending on where your data is stored in the filter just before 
IntegrateVariables) with the integral of your data over the volume/area/length 
depending on if it is 3D/2D/1D data respectively.


It also adds a field to the CellData array that will be Volume/Area/Length 
respectively.


My guess is if you aren't seeing it immediately it is because you are looking 
at the PointData array and not the CellData array. In the SpreadSheetView that 
opens up, change the Attribute dropdown from Point Data to Cell Data.


Also, as a note -- the values for your variables (pressure, velocity, whatever) 
are multiplied by the length scale, so if you want the average value in the 
domain, you need to divide it by the length scale.


Tim



From: Saideep Pavuluri 
Sent: Saturday, March 4, 2017 12:30 PM
To: Gallagher, Timothy P; paraview@paraview.org
Subject: RE: Finding volume enclosed by a contour.


Thanks Tim;



I could precisely extract the bubble using the threshold filter as you said 
(attached picture).



Coming to the 2nd step: I applied the integrate variables filter on the 
threshold data but I get the general data set values within individual cells 
like the computed velocity, pressure, etc….



How do I integrate the the region in space to find the enclosed volume?



Sorry, if it’s a basic question.



Saideep



From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:09
To: Saideep Pavuluri ; paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.



Your best bet would be to use the Threshold filter to extract the region where 
the scalar is greater (or less than) 0.5 and then use the IntegrateVariables 
filter on the Threshold.



It's not entirely clear your exact pipeline, but it sounds like you are using 
the IntegrateVariables filter on the Contour, which would give you the surface 
area of the region instead.



Tim





From: ParaView 
mailto:paraview-boun...@paraview.org>> on behalf 
of Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 11:36 AM
To: paraview@paraview.org
Subject: [Paraview] Finding volume enclosed by a contour.



Hi guys;



I am using a numerical method (Volume of fluid, just for information) to look 
at the breaking of a bubble in a micro-channel. Attached picture.



As mostly, the bubbles are of uniform size, I would like to know the volume of 
any one bubble formed.



The bubble is represented by a scalar data set represented by 1 and bounded by 
the same data set with values 0.



I think to clip the region enclosing one bubble and draw a contour where the 
scalar value is 0.5. Now, I tried the integrate variables filter but I did not 
find a data representing the volume.  Any idea how can I get the volume 
enclosed by this contour?



Any help appreciated.



Thanks;

SaiD
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Re: [Paraview] Finding volume enclosed by a contour.

[Saideep Pavuluri]

Thanks Tim;

I could precisely extract the bubble using the threshold filter as you said 
(attached picture).

Coming to the 2nd step: I applied the integrate variables filter on the 
threshold data but I get the general data set values within individual cells 
like the computed velocity, pressure, etc

How do I integrate the the region in space to find the enclosed volume?

Sorry, if it's a basic question.

Saideep

From: Gallagher, Timothy P [mailto:tim.gallag...@gatech.edu]
Sent: 04 March 2017 17:09
To: Saideep Pavuluri ; paraview@paraview.org
Subject: Re: Finding volume enclosed by a contour.


Your best bet would be to use the Threshold filter to extract the region where 
the scalar is greater (or less than) 0.5 and then use the IntegrateVariables 
filter on the Threshold.



It's not entirely clear your exact pipeline, but it sounds like you are using 
the IntegrateVariables filter on the Contour, which would give you the surface 
area of the region instead.



Tim


From: ParaView 
mailto:paraview-boun...@paraview.org>> on behalf 
of Saideep Pavuluri 
mailto:saideep.pavul...@pet.hw.ac.uk>>
Sent: Saturday, March 4, 2017 11:36 AM
To: paraview@paraview.org
Subject: [Paraview] Finding volume enclosed by a contour.


Hi guys;



I am using a numerical method (Volume of fluid, just for information) to look 
at the breaking of a bubble in a micro-channel. Attached picture.



As mostly, the bubbles are of uniform size, I would like to know the volume of 
any one bubble formed.



The bubble is represented by a scalar data set represented by 1 and bounded by 
the same data set with values 0.



I think to clip the region enclosing one bubble and draw a contour where the 
scalar value is 0.5. Now, I tried the integrate variables filter but I did not 
find a data representing the volume.  Any idea how can I get the volume 
enclosed by this contour?



Any help appreciated.



Thanks;

SaiD
___
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Re: [Paraview] Finding volume enclosed by a contour.

[Gallagher, Timothy P]

Your best bet would be to use the Threshold filter to extract the region where 
the scalar is greater (or less than) 0.5 and then use the IntegrateVariables 
filter on the Threshold.


It's not entirely clear your exact pipeline, but it sounds like you are using 
the IntegrateVariables filter on the Contour, which would give you the surface 
area of the region instead.


Tim



From: ParaView  on behalf of Saideep Pavuluri 

Sent: Saturday, March 4, 2017 11:36 AM
To: paraview@paraview.org
Subject: [Paraview] Finding volume enclosed by a contour.


Hi guys;



I am using a numerical method (Volume of fluid, just for information) to look 
at the breaking of a bubble in a micro-channel. Attached picture.



As mostly, the bubbles are of uniform size, I would like to know the volume of 
any one bubble formed.



The bubble is represented by a scalar data set represented by 1 and bounded by 
the same data set with values 0.



I think to clip the region enclosing one bubble and draw a contour where the 
scalar value is 0.5. Now, I tried the integrate variables filter but I did not 
find a data representing the volume.  Any idea how can I get the volume 
enclosed by this contour?



Any help appreciated.



Thanks;

SaiD
___
Powered by www.kitware.com

Visit other Kitware open-source projects at 
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