Man pages for a5R
'A5' Discrete Global Grid System

a5_cellA5 Cell Index Vector
a5_cell_areaCell area at a given resolution
a5_cell_distanceDistance between cell centroids
a5_cell_from_arrowConvert between a5_cell and Arrow uint64 arrays
a5_cell_to_boundaryGet cell boundary polygons
a5_cell_to_childrenGet child cells
a5_cell_to_lonlatConvert A5 cell indices to coordinates
a5_cell_to_parentNavigate to parent cell(s)
a5_compactCompact a set of A5 cells
a5_get_num_cellsTotal number of cells at a given resolution
a5_get_num_childrenNumber of children between two resolutions
a5_get_res0_cellsGet all resolution-0 root cells
a5_get_resolutionGet the resolution of A5 cell indices
a5_gridGenerate a grid of A5 cells covering an area
a5_grid_diskCells within k hops of a cell
a5_lonlat_to_cellConvert coordinates to A5 cell indices
a5R-packagea5R: A5 Pentagonal Geospatial Index for R
a5_spherical_capCells within a great-circle radius
a5_threadsSet the number of threads used by a5R
a5_u64_to_hexCoerce between hex strings and A5 cell vectors
a5_uncompactUncompact a set of A5 cells to a target resolution
wk_methodswk methods for a5_cell
a5R documentation built on March 26, 2026, 5:10 p.m.