Installing NetGen/Ngsolve in a mac with OCC support.

I have been trying to add OCC support to my Mac Os in NetGen but until now I keep failing.
I am currently using the following configuration:

cmake ~/NetGen/ngsolve-src \
-USE_OCC=ON \
-USE_GUI=ON \
-USE_JPEG=ON \
-USE_MPI=ON \
-USE_MPEG=ON

but I keep getting:

Enabled functionality:

OCC: ............... OFF
JPEGlib: ........... OFF
FFMPEG: ............ OFF
GUI: ............... ON
MPI: ............... OFF
PYTHON: ............ ON

Is OCC integration available in Mac OS or not? If so how can I configure it correctly to compile with OCCt support.

Hi,

if you want set one of the cmake options, you have to put a "D" in front such that cmake knows it's a define flag. So none of your flags was used and you got the default configuration.
Here is a (probably not complete) list of cmake options you can use to configure Netgen/NGSolve.

As you see in the list of cmake options, OCC support is not tested on MacOS. I just installed homebrew and oce (using homebrew) and it seems to work. After installing homebrew, the following command should install oce. Then you should be able to configure with OCC support. Concerning the other flags you used:

• USE_GUI: is ON by default
• USE_JPEG: needed to export screenshots of the solution
• USE_MPI: you are probably working on a desktop machine, so you don't need MPI
• USE_MPEG: you just need that to export videos

For the beginning I advice to take the default values. If you need the features you can bother about installing the dependencies.

Regards,
Christoph

Thanks Christoph! That was exactly the information I was looking for. It will help a lot.