Change internal coordinate system for orthographic & azimuthal projections to use numbers between 0 & 1, rather than km distances (with factor of pi for azimuthal). This is mainly an internal change for simplicity, but does also make setting limits easier too.
Pull request checklist
[ ] Add a clear description of the change
[ ] Add any new tests needed
[ ] Run spell check on new text visible to user (documentation, GUI etc.)
[ ] Check any changes to requirements.txt are reflected in setup.py
[ ] Check code passes CI checks (run run_ci.sh or check GitHub Actions)
Change internal coordinate system for orthographic & azimuthal projections to use numbers between 0 & 1, rather than km distances (with factor of pi for azimuthal). This is mainly an internal change for simplicity, but does also make setting limits easier too.
Pull request checklist
requirements.txtare reflected insetup.pyrun_ci.shor check GitHub Actions)See CONTRIBUTING.md for more details.