Writing a Code for meshing in ICEM
 

Hello,
I am just about to undertake a huge task in terms of meshing. I am meshing a city. That's a lot of curves! I was wondering if there was a way to input in a code where you tell ICEM for example, I want x number of nodes on a curve of x metres. If I can do this, it will make life a whole lot merrier. Many thanks in advance.
:)

If you want x number of nodes on ALL curves, try this:

set no_nodes 20
foreach curves [ic_geo_get_objects curve ""] {ic_set_meshing_params curve $curves emax [expr "[ic_geo_crv_length $curves] / ($no_nodes - 1)"] emin 0 ehgt 0 edev 0 hrat 0 ] }


If you just want all curves to have a max size of x meters, try this:

set max_size 0.1
foreach curves [ic_geo_get_objects curve ""] {ic_set_meshing_params curve $curves emax $max_size emin 0 ehgt 0 edev 0 hrat 0 ] }

Obviously the first line in both codes is just the variable to be set, change it to whatever you need.


Stu

Thanks, Stu. I will give it a go. Hopefully it will work. :)

Hi Stu,
I loaded your script file for a simple 3d cube inside of a cube and it didnt work. It worked only for 2 curves. Is there anything else I need to do? I've uploaded the picture of the mesh.the outer box complied with your code but the inner one does not for some reason

ICEM SCRIPT no curve found
 

Hi Stu,
Thanks for your help. One more question. If let's say I have a curve named "oval", how do I put that into a command script in icem to let that curve have 20 nodes?
I have tried many ways but I always get an error saying " no curve named "oval". I am confused because I named a curve in my geometry oval but the ICEM script could not recognize it. Any suggestions?

Many thanks in advance.

David,

How did you create the curve?

I use the following command to create a line:
ic_curve FAMILY_NAME CURVE_NAME {point_name_1 point_name_2}

For an oval, you might have to do a B-spline (or stretch a circle)

Using the command line implicitly creates the curve with the specified name. I am not sure how you have named your curves though. To check the names, right click on lines under geometry and click "show names"


Good Luck

Stu