Standardize spatial coordinates

Converts raw NetCDF coordinates into a canonical data.frame with one row per grid cell.

Usage

hm_standardize_coords(x)

Arguments

x

An hm_hazard object returned by [hm_read_netcdf()].

Value

The same object with x$coords replaced by a data.frame containing cell_id, lat, and lon.

Details

Regular grids supply lat and lon as 1D vectors; all combinations are expanded with expand.grid(). Rotated or curvilinear grids supply lat and lon as 2D matrices, with rotated indices appended when available.

See also

[hm_read_netcdf()], [hm_get_grid_geometry()]