grid_global

Creates hexagon polygons covering the entire Earth.

Provides functions to build and use hexagonal discrete global grids
using the 'Snyder' 'ISEA' projection ('Snyder' 1992
<doi:10.3138/27H7-8K88-4882-1752>) and the 'H3' hierarchical hexagonal system
('Uber' Technologies). Implements the 'ISEA' discrete global grid system
('Sahr', 'White' and 'Kimerling' 2003 <doi:10.1559/152304003100011090>).
Includes a fast 'C++' core for 'ISEA' projection and aperture quantization,
an included 'H3' v4.4.1 C library for native 'H3' grid operations, and
'sf'/'terra'-compatible R wrappers for grid generation and coordinate assignment.
Output is compatible with 'dggridR' for interoperability.

Gilles Colling

hexify

Equal-Area Hex Grids on the 'Snyder' 'ISEA' 'Icosahedron'

grid_global function

<dl><dt>grid</dt>
<dd>A HexGridInfo object specifying the grid parameters</dd>
<dt>wrap_dateline</dt>
<dd>Logical. If TRUE (default), antimeridian-crossing
polygons are split at +/-180 degrees. Set to FALSE for orthographic/globe
projections where wrapping creates gaps.</dd></dl>

Arguments

Generate a global hexagon grid — grid_global

<dl>

<dt>grid</dt>
<dd>A HexGridInfo object specifying the grid parameters</dd>


<dt>wrap_dateline</dt>
<dd>Logical. If TRUE (default), antimeridian-crossing
polygons are split at +/-180 degrees. Set to FALSE for orthographic/globe
projections where wrapping creates gaps.</dd>

</dl>

grid_global: Generate a global hexagon grid

Description

Usage

Value

Arguments

Details

See Also

Examples