Make edge/face z-coordinate calculations dask-compatible#8

Open

aesgeorges wants to merge 7 commits into

mainfrom

BDS-181-edge-face-z-to-dask

Commits on Jul 20, 2026

Rewrites _calculate_edge_z and _calculate_face_z in _schismgrid.py to use lazy xarray operations instead of eager numpy, making them compatible with dask-backed arrays.
Alexandre Georges
committed
Add tests for face and edge z-coordinate calculations in test_schismgrid_io.py
Alexandre Georges
committed
Removed leftover commented-out implementation

aesgeorges
and
Copilot
authored
Fix return type annotation and docstring for _calculate_face_z
Copilot
authored
Fix return type annotation and docstring for _calculate_edge_z
Copilot
authored
Remove .values calls in assign_coords to keep z-coordinates lazy
Copilot
authored
Fix z-coordinate shape order in _assign_z_coords, _calculate_edge_z, and _calculate_face_z functions
Alexandre Georges
committed