Line probe perendicular to a surface

badger1 · January 19, 2013, 07:59

Hi,

I am trying to place line probes so that they are purpendicular to a surface (see image). I would like them to be placed so that they are in line with the mesh.

Does anyone know a way of doing this please?

Thanks

ryancoe · January 21, 2013, 18:02

To figure out the details might take a bit of work, but something along these lines should work (I think):

Use a field function to get the surface normal direction (see help manual).
Write a macro to create the probes based on that field function.

Hope this helps.

badger1 · January 22, 2013, 04:55

Thanks for your reply.

I have been searching in the help files for how to obtain the surface normal direction using a field function but I cant seem to find it anywhere. Do you have any idea how to do this?

Thanks

ryancoe · January 22, 2013, 09:49

search "Calculating and Visualizing Face Normals" in the help manual.

badger1 · January 22, 2013, 10:10

Does it matter that my simulation is 2D as this doesnt seem to be working for me. I used the example that was given in the help file.

Thanks

January 21, 2013, 18:02		#2
ryancoe Member Ryan Coe Join Date: Jun 2010 Location: Albuquerque, NM Posts: 98 Rep Power: 15	To figure out the details might take a bit of work, but something along these lines should work (I think): Use a field function to get the surface normal direction (see help manual). Write a macro to create the probes based on that field function. Hope this helps. __________________ Ryan

January 22, 2013, 09:49		#4
ryancoe Member Ryan Coe Join Date: Jun 2010 Location: Albuquerque, NM Posts: 98 Rep Power: 15	search "Calculating and Visualizing Face Normals" in the help manual. __________________ Ryan

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January 22, 2013, 04:55		#3
badger1 Member anonymous Join Date: Dec 2012 Posts: 33 Rep Power: 13	Thanks for your reply. I have been searching in the help files for how to obtain the surface normal direction using a field function but I cant seem to find it anywhere. Do you have any idea how to do this? Thanks

January 22, 2013, 10:10		#5
badger1 Member anonymous Join Date: Dec 2012 Posts: 33 Rep Power: 13	Does it matter that my simulation is 2D as this doesnt seem to be working for me. I used the example that was given in the help file. Thanks