Bugfix: Geometry access of cad shapes

[sandro-elsweijer]

Closes #1879

Describe your changes here:
During the last geometry update, the access for cad shapes got mangled. This PR fixes that.
It also introduces clearer names for parameters. Can be verified by running the cad tutorials

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.42%. Comparing base (253e4de) to head (87524a7).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1878   +/-   ##
=======================================
  Coverage   74.42%   74.42%           
=======================================
  Files         101      101           
  Lines       19204    19204           
=======================================
  Hits        14293    14293           
  Misses       4911     4911           

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