How to display agglomerated surfaces in paraView

gmori · November 8, 2022, 22:33

Hi all, I am looking for a way to display the agglomerated faces in paraview.
I am doing a radiation calculation using the viewFactor model and would like to see the faces and their IDs in paraView after agglomeration by faceAgglomerate.

Also, is it possible to indicate the temperature at the agglomerated surface?

I would like to know just one or the other.

Best Regards.

Yann · November 9, 2022, 08:40

Hello,

In the viewFactorsDict file, there is a switch to write face agglomeration:

Code:

writeFacesAgglomeration   true;

If it is set to true, faceAgglomerate writes a variable named faceAgglomeration and you can visualize it in ParaView.

Regards,
Yann

gmori · November 9, 2022, 21:43

Hi,Yann.

Thank you for reply.

I turned on the Face agglomeration switch and checked faceAgglomeration in the Paraview variable list, but in the Mapped Variable pull-down (where it says Solid Color) faceAgglomeration does not appear. For time, I have unchecked skip 0 and selected time 0. Do you know anything about this problem?

Yann · November 10, 2022, 03:19

As long as you unticked "Skip zero time" it should show up in the variable list.

Do you run your case in parallel? If yes make sure to select the proper Case Type (Decomposed Case)

gmori · November 10, 2022, 08:35

Thanks for your reply.

I have Skip 0 time unchecked, but it does not appear in the list...
I am not concerned about that problem because we are not running parallel calculations.
We are not concerned about that problem because we are not running parallel calculations.

Yann · November 10, 2022, 08:50

If you have a look into the 0 directory, do you see a file named faceAgglomeration?

gmori · November 10, 2022, 09:16

The file faceAgglomeration can be found in the 0 directory. I can select faceAgglomeration in paraView, but it does not appear in the pulldown.

Yann · November 10, 2022, 10:34

OK great. In ParaView, what entities are you selecting in the "Mesh Regions" list before loading the case ?

Try to untick everything and select only the patched you want to visualize.

gmori · November 11, 2022, 00:16

Sorry for the late reply.
I was able to get the faceAgglomeration to show up in the Mesh Parts settings!
Thank you so much for all your help and guidance!

November 8, 2022, 22:33	How to display agglomerated surfaces in paraView	#1
gmori New Member mo Join Date: May 2022 Posts: 24 Rep Power: 3	Hi all, I am looking for a way to display the agglomerated faces in paraview. I am doing a radiation calculation using the viewFactor model and would like to see the faces and their IDs in paraView after agglomeration by faceAgglomerate. Also, is it possible to indicate the temperature at the agglomerated surface? I would like to know just one or the other. Best Regards.

November 9, 2022, 08:40		#2
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,066 Rep Power: 26	Hello, In the viewFactorsDict file, there is a switch to write face agglomeration: Code: writeFacesAgglomeration true; If it is set to true, faceAgglomerate writes a variable named faceAgglomeration and you can visualize it in ParaView. Regards, Yann

November 11, 2022, 00:16		#9
gmori New Member mo Join Date: May 2022 Posts: 24 Rep Power: 3	Sorry for the late reply. I was able to get the faceAgglomeration to show up in the Mesh Parts settings! Thank you so much for all your help and guidance! Yann likes this.

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November 9, 2022, 21:43		#3
gmori New Member mo Join Date: May 2022 Posts: 24 Rep Power: 3	Hi,Yann. Thank you for reply. I turned on the Face agglomeration switch and checked faceAgglomeration in the Paraview variable list, but in the Mapped Variable pull-down (where it says Solid Color) faceAgglomeration does not appear. For time, I have unchecked skip 0 and selected time 0. Do you know anything about this problem?

November 10, 2022, 03:19		#4
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,066 Rep Power: 26	As long as you unticked "Skip zero time" it should show up in the variable list. Do you run your case in parallel? If yes make sure to select the proper Case Type (Decomposed Case)

November 10, 2022, 08:35		#5
gmori New Member mo Join Date: May 2022 Posts: 24 Rep Power: 3	Thanks for your reply. I have Skip 0 time unchecked, but it does not appear in the list... I am not concerned about that problem because we are not running parallel calculations. We are not concerned about that problem because we are not running parallel calculations.

November 10, 2022, 08:50		#6
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,066 Rep Power: 26	If you have a look into the 0 directory, do you see a file named faceAgglomeration?

November 10, 2022, 09:16		#7
gmori New Member mo Join Date: May 2022 Posts: 24 Rep Power: 3	The file faceAgglomeration can be found in the 0 directory. I can select faceAgglomeration in paraView, but it does not appear in the pulldown.

November 10, 2022, 10:34		#8
Yann Senior Member Yann Join Date: Apr 2012 Location: France Posts: 1,066 Rep Power: 26	OK great. In ParaView, what entities are you selecting in the "Mesh Regions" list before loading the case ? Try to untick everything and select only the patched you want to visualize.