0.0.2

Added support for rHEALPix (3x3 refinement)

0.0.1

Initial release with a Python package published to PyPI:

https://pypi.org/project/dggal/

This release supports the IVEA3H and IVEA9R DGGRS based on the Icosahedral Vertex-oriented great circle Equal-Area projection (IVEA) projection (Slice and Dice, van Leeuwen and Strebe, 2006 -- https://www.tandfonline.com/doi/abs/10.1559/152304006779500687), implemented based on the vectorial approach described in https://brsr.github.io/2021/08/31/snyder-equal-area.html . RTEA3H and RTEA9R (rhombic triacontahedron), as well as ISEA3H and ISEA9R, are also supported using the same vectorial method, using a different vertex from which originate the great circles mapping to straight lines.

Preliminary preview v0.0.1rc2

This updated preview includes working C++ bindings, fixes issues resolving coordinates to sub-zones, supports more efficient and deeper query of sub-zone indices and sub-zones at a specific indices, more efficient queries of ancestral relationships, and provides an initial complete documentation of the API ( https://dggal.org/docs/html/dggal.html ).

Preliminary preview

Initial preliminary preview of DGGAL, with support for ISEA3H, ISEA9R and GNOSISGlobalGrid.

dgg tool able to generate grids in WGS84, ISEA or ISEA 5x6 coordinates, list zones for a given WGS84 bounding box (compacted or not), list sub-zones at a particular depth, describe relationships between two zones, resolve sub-zone index to global zone ID, return the sub-zone index of a sub-zone relative to a parent zone, and convert DGGS-JSON to GeoJSON.

Working initial version of C and Python bindings for the eC library.