[blockMesh] Any simple way to view blockMeshDict vertex numbers/indices?

massive_turbulence · April 16, 2014, 16:37

I know that Paraview is used for viewing a mesh once blockMesh creates one from the blockMeshDict file but seeing a grid and understand the relationship between the indices used to connect the vertices are two different things. Is there some easy way to visualize the indices without making crude drawings by hand in GIMP or some other image editor.

thanks

wyldckat · April 16, 2014, 16:48

Quick answer:

Code:
```
paraFoam -block
```

Code:

blockMesh -help
blockMesh -blockTopology

pyFoamDisplayBlockMesh: http://openfoamwiki.net/index.php/Co...Foam#GUI-Tools
SwiftBlock: http://openfoamwiki.net/index.php/Contrib/SwiftBlock

edit: There is at least one of two more possibilities, but I can't remember their names...

massive_turbulence · April 16, 2014, 17:24

Quote:

Originally Posted by wyldckat

Quick answer:

Code:
```
paraFoam -block
```

Code:

blockMesh -help
blockMesh -blockTopology

pyFoamDisplayBlockMesh: http://openfoamwiki.net/index.php/Co...Foam#GUI-Tools
SwiftBlock: http://openfoamwiki.net/index.php/Contrib/SwiftBlock

edit: There is at least one of two more possibilities, but I can't remember their names...

Thanks, I'll check it out, any other ideas/software are also welcome.

romant · April 17, 2014, 05:39

Hej,

I know that Nicolas also develops a GUI for blockMesh, called hexBlocker http://www.cfd-online.com/Forums/ope...a-release.html This is also an active git repository https://github.com/nicolasedh

wyldckat · April 19, 2014, 11:43

Greetings to all!

@Roman: Many thanks for reminding me of HexBlocker!

I've taken the time to revamp the wiki page for blockMesh: http://openfoamwiki.net/index.php/BlockMesh - if you remember any more helpful features and hints about blockMesh, feel free to add it to that wiki page!

Best regards,
Bruno

GerhardHolzinger · July 8, 2014, 10:11

PyFoamDisplayBlockMesh can display everything defined in blockMeshDict even when meshing fails due to some errors.

http://openfoamwiki.net/index.php/Co...ayBlockMesh.py

VLima · July 5, 2018, 08:18

Dear all,

I am trying to visualize the vertex numbers/indices of a case.

Doing paraFoam -block in the case folder I get :

bash-4.1$ paraFoam -block
Created temporary 'wavemakerTank_teste.blockMesh'
fileName::stripInvalid() called for invalid fileName /home/user/Desktop/LinktoOpenFOAM/user-v1606+/run/tutorials/olaFlow/tutorials/wavemakerTank_teste/wavemakerTank_teste.blockMesh
For debug level (= 2) > 1 this is considered fatal

So there is some problem with paraFoam, I suppose.

Following Phicau's suggestion, I moved the folder to /home/user/ and the instruction is now working.

April 16, 2014, 16:37	Any simple way to view blockMeshDict vertex numbers/indices?	#1
massive_turbulence Senior Member Andrew Somorjai Join Date: May 2013 Posts: 175 Rep Power: 13	I know that Paraview is used for viewing a mesh once blockMesh creates one from the blockMeshDict file but seeing a grid and understand the relationship between the indices used to connect the vertices are two different things. Is there some easy way to visualize the indices without making crude drawings by hand in GIMP or some other image editor. thanks

April 16, 2014, 16:48		#2
wyldckat Retired Super Moderator Bruno Santos Join Date: Mar 2009 Location: Lisbon, Portugal Posts: 10,981 Blog Entries: 45 Rep Power: 128	Quick answer: Code: paraFoam -block Code: blockMesh -help blockMesh -blockTopology pyFoamDisplayBlockMesh: http://openfoamwiki.net/index.php/Co...Foam#GUI-Tools SwiftBlock: http://openfoamwiki.net/index.php/Contrib/SwiftBlock edit: There is at least one of two more possibilities, but I can't remember their names... Metti and Gerhard like this. Last edited by wyldckat; April 16, 2014 at 16:49. Reason: see "edit:"

April 17, 2014, 05:39	hexBlocker	#4
romant Senior Member Roman Thiele Join Date: Aug 2009 Location: Eindhoven, NL Posts: 374 Rep Power: 21	Hej, I know that Nicolas also develops a GUI for blockMesh, called hexBlocker http://www.cfd-online.com/Forums/ope...a-release.html This is also an active git repository https://github.com/nicolasedh wyldckat and Metti like this. __________________ ~roman

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April 19, 2014, 11:43		#5
wyldckat Retired Super Moderator Bruno Santos Join Date: Mar 2009 Location: Lisbon, Portugal Posts: 10,981 Blog Entries: 45 Rep Power: 128	Greetings to all! @Roman: Many thanks for reminding me of HexBlocker! I've taken the time to revamp the wiki page for blockMesh: http://openfoamwiki.net/index.php/BlockMesh - if you remember any more helpful features and hints about blockMesh, feel free to add it to that wiki page! Best regards, Bruno

July 5, 2018, 08:18		#7
VLima New Member Vania Join Date: Dec 2016 Posts: 13 Rep Power: 9	Dear all, I am trying to visualize the vertex numbers/indices of a case. Doing paraFoam -block in the case folder I get : bash-4.1$ paraFoam -block Created temporary 'wavemakerTank_teste.blockMesh' fileName::stripInvalid() called for invalid fileName /home/user/Desktop/LinktoOpenFOAM/user-v1606+/run/tutorials/olaFlow/tutorials/wavemakerTank_teste/wavemakerTank_teste.blockMesh For debug level (= 2) > 1 this is considered fatal So there is some problem with paraFoam, I suppose. Following Phicau's suggestion, I moved the folder to /home/user/ and the instruction is now working.