[General] ParaView volume integral

yiphome · November 23, 2012, 04:56

Hello!

Does somebody knows how to calculate volume integral result in ParaView? I have a unstructured mesh with scale energy source. I would like to calculate the integral energy over the whole mesh.

Thanks in advance!

wyldckat · November 26, 2012, 15:35

Greetings yiphome,

I think what you're looking for is the filter "Integrate Variables": http://cmake.org/Wiki/ParaView/Users...rate_Variables

Best regards,
Bruno

Wan · March 27, 2013, 01:20

THanks for your help

User-Name · April 3, 2013, 07:07

Hi,

I have the same problem. The "Integrate Variables" filter in Paraview is apparently rather disfunctional: it only works for lines and surfaces. Its failure on volumes can be easily demonstrated by integrating over a 1x1x1 cube. However, the underyling VTK library does support volume integration, so it could be just a matter of invoking the VTK function through the Paraview Python interface.

Any Paraview nerds that can help out with this? I already tried the Paraview-users mailing list, but got no response.

Cheers!

berk · April 19, 2013, 20:09

I am sorry to disagree but ParaView is able to integrate variables on lines, surfaces and volumes. To verify, try:

Sources -> Wavelet (creates a 20x20x20 grid)
Filters -> Integrate variables

This will result in a volume of 8000 as well as RTData integrated over the volume.

November 23, 2012, 04:56	ParaView volume integral	#1
yiphome New Member qiu Join Date: Apr 2012 Posts: 4 Rep Power: 14	Hello! Does somebody knows how to calculate volume integral result in ParaView? I have a unstructured mesh with scale energy source. I would like to calculate the integral energy over the whole mesh. Thanks in advance!

November 26, 2012, 15:35		#2
wyldckat Retired Super Moderator Bruno Santos Join Date: Mar 2009 Location: Lisbon, Portugal Posts: 10,974 Blog Entries: 45 Rep Power: 128	Greetings yiphome, I think what you're looking for is the filter "Integrate Variables": http://cmake.org/Wiki/ParaView/Users...rate_Variables Best regards, Bruno AnthonyP likes this. __________________ OpenFOAM: FAQ \| Getting started Forum: How to get help, to post code/output and forum guide Read this before sending me PM

March 27, 2013, 01:20	Thanks	#3
Wan New Member Sung Wan Yun Join Date: Mar 2013 Posts: 1 Rep Power: 0	THanks for your help

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April 3, 2013, 07:07		#4
User-Name New Member Join Date: Apr 2013 Posts: 1 Rep Power: 0	Hi, I have the same problem. The "Integrate Variables" filter in Paraview is apparently rather disfunctional: it only works for lines and surfaces. Its failure on volumes can be easily demonstrated by integrating over a 1x1x1 cube. However, the underyling VTK library does support volume integration, so it could be just a matter of invoking the VTK function through the Paraview Python interface. Any Paraview nerds that can help out with this? I already tried the Paraview-users mailing list, but got no response. Cheers!

April 19, 2013, 20:09		#5
berk New Member Berk Geveci Join Date: Apr 2013 Posts: 6 Rep Power: 13	I am sorry to disagree but ParaView is able to integrate variables on lines, surfaces and volumes. To verify, try: Sources -> Wavelet (creates a 20x20x20 grid) Filters -> Integrate variables This will result in a volume of 8000 as well as RTData integrated over the volume.