Refactor geometry #786

Job	Run time
cpython-lxml (3.7)	41s
cpython (3.7)	25s
cpython-lxml (3.8)	37s
static-tests (3.9)	27s
cpython (3.8)	38s
cpython-lxml (3.9)	40s
cpython (3.9)	42s
cpython-lxml (3.10)	34s
cpython (3.10)	34s
cpython-lxml (3.11)	40s
cpython (3.11)	22s
cpython-lxml (3.12)	1m 9s
cpython (3.12)	50s
pypy (pypy-3.7)	38s
pypy (pypy-3.8)	32s
pypy (pypy-3.9)	34s
pypy (pypy-3.10)	39s
Build and publish to PyPI and TestPyPI	0s
	10m 42s

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