consolidate more geometry handling

[szvsw]

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[codecov-commenter]

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Codecov Report

❌ Patch coverage is 91.66667% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.1%. Comparing base (f6b3882) to head (93f6a59).

Files with missing lines	Patch %	Lines
epinterface/geometry.py	91.6%	2 Missing and 1 partial ⚠️
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Additional details and impacted files

@@           Coverage Diff           @@
##            main     #59     +/-   ##
=======================================
+ Coverage   63.3%   64.1%   +0.7%     
=======================================
  Files         34      34             
  Lines       4907    4943     +36     
  Branches     443     445      +2     
=======================================
+ Hits        3110    3170     +60     
+ Misses      1651    1626     -25     
- Partials     146     147      +1     

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