I'd like to make a GPLd library to read STEP solid model data, as I think this would be useful to a lot of people. It would make sense to base it on the OpenCascade code, but the code base is overwhelming.
Can anyone help me extract the STEP reading code from OpenCascade? I can see that there are several directories called StepGeom etc, but still, it's overwhelming.
Many thanks for any help.