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hexify 0.6.5

• Fixed empty translation unit warning in vendored H3 h3Assert.c (clang 21 -Wempty-translation-unit)

hexify 0.6.4

• Removed compiled object files (.o) from source tarball that caused installation failure on Linux (Debian) and NOTE on all platforms
• Wrapped plot_globe() examples in \donttest{} to reduce check time (was 608s on win-builder)
• Reworded DESCRIPTION to avoid “vendored” spelling flag

hexify 0.6.3

• cell_to_sf() now applies sf::st_wrap_dateline() automatically, fixing horizontal streaks on flat map projections (Plate Carrée, Robinson, etc.) for hexagons crossing the ±180° antimeridian
• as_sf(x, geometry = "polygon") now routes all grids (ISEA and H3) through cell_to_sf(), ensuring consistent antimeridian handling
• hexify_cell_to_sf() gains antimeridian normalization matching cell_to_sf()
• Vignettes no longer require manual st_wrap_dateline() calls

hexify 0.6.2

Native H3 backend — zero external dependencies

• Vendored H3 v4.4.1 C source, replacing the h3o R package dependency
• H3 is now always available — no optional install, no Suggests
• Uses H3 experimental polygon fill for full spatial coverage in hexify()
• New native C++ bindings: h3_lat_lng_to_cell, h3_cell_to_boundary, h3_cell_to_parent, h3_cell_to_children, h3_polygon_to_cells, h3_cell_area_km2, h3_cell_to_lat_lng

hexify 0.6.1

• Warn when aperture is passed with type = "h3" (ignored parameter)
• Expanded H3 resolution guidance in hex_grid() documentation
• Extended H3 vignette resolution table to full range (0-15)
• Added h3_crosswalk() example to H3 vignette

hexify 0.6.0

ISEA–H3 crosswalk and per-cell area

• New h3_crosswalk(): bidirectional mapping between ISEA and H3 cell IDs, with automatic resolution matching and per-cell area comparison
• New cell_area(): returns geodesic area (km²) for each cell — constant for ISEA (equal-area), location-dependent for H3, with session-scoped caching
• HexData $cell_area_km2, [["cell_area_km2"]], and as.data.frame() now return per-cell areas for H3 grids instead of the grid-wide average
• Internal: extracted closest_h3_resolution() helper shared by hex_grid() and h3_crosswalk()

hexify 0.5.0

H3 grid support

• Added H3 (Uber) as a first-class grid type: hex_grid(resolution = 8, type = "h3")
• All core functions work with H3 grids: hexify(), cell_to_sf(), grid_rect(), grid_global(), grid_clip(), get_parent(), get_children()
• H3 support requires the h3o package (Suggests, not required for ISEA workflows)
• New hexify_compare_resolutions(type = "h3") for H3 resolution table
• dgearthstat() now accepts HexGridInfo objects directly
• New grid_type slot on HexGridInfo: "isea" (default) or "h3"
• HexData cell_id slot supports character (H3) and numeric (ISEA) cell IDs
• Backward compatible: all existing ISEA workflows unchanged

hexify 0.3.10

Hotfix for geometry issues

• Fixed invalid pentagon geometries that caused gaps in global grids
• Fixed antimeridian-crossing polygons using st_wrap_dateline()
• Added polar cap sampling to grid_global() to include cells above ±85° latitude

hexify 0.3.6

• Reduced test suite runtime for CRAN by skipping detailed consistency tests (full tests still run locally via NOT_CRAN=true)
• Fixed CRAN incoming check NOTE: “Overall checktime 15 min > 10 min”

hexify 0.3.5

• Simplified plot examples to reduce runtime
• Added non-standard files to .Rbuildignore
• Fixed slow example NOTE

hexify 0.3.4

Hotfix for CRAN UBSAN check failure

• Fixed undefined behavior in Snyder ISEA projection causing NaN values (UBSAN error on M1 Mac CRAN check: “nan is outside the range of representable values of type ‘long long’” at coordinate_transforms.cpp:243-244)
• Root cause: floating-point precision in face assignment could project points onto geometrically invalid triangle faces near icosahedron edges
• Solution: added projection validation with face-retry logic - if validation fails (z > DH), automatically tries adjacent faces until valid

hexify 0.3.3

• CRAN submission fixes

hexify 0.3.2

• Documentation improvements
• Fixed hierarchical index functions
• Increased test coverage to 90%

hexify 0.3.1

• Minor bug fixes

hexify 0.3.0

• Major refactoring of coordinate transformation system
• Improved performance for large grids

hexify 0.2.0

• Added dggridR compatibility functions (as_dggrid(), from_dggrid())
• New hierarchical indexing support with H-index functions
• Improved coordinate conversion pipeline
• Added grid statistics functions

hexify 0.1.0

• Initial release
• ISEA discrete global grid implementation
• Support for apertures 3, 4, 7, and mixed 4/3
• Compatible with dggridR output

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.