hexify_h_index_to_lonlat

Converts hierarchical cell index strings back to geographic coordinates,
returning the center point of each cell. This is the inverse operation
of hexify_lonlat_to_h_index().

internal

Provides functions to build and use equal-area hexagonal discrete
global grids using the 'Snyder' 'ISEA' projection ('Snyder' 1992
<doi:10.3138/27H7-8K88-4882-1752>). Implements the 'ISEA' discrete global grid
system ('Sahr', 'White' and 'Kimerling' 2003 <doi:10.1559/152304003100011090>).
Includes a fast 'C++' core for projection and aperture quantization, 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'

hexify_h_index_to_lonlat function

<dl><dt>grid</dt>
<dd>Grid specification from hexify_grid()</dd>
<dt>h_index</dt>
<dd>Hierarchical index strings (character vector)</dd></dl>

Arguments

Convert hierarchical index strings to longitude/latitude centers — hexify_h_index_to_lonlat

<dl>

<dt>grid</dt>
<dd>Grid specification from hexify_grid()</dd>


<dt>h_index</dt>
<dd>Hierarchical index strings (character vector)</dd>

</dl>

hexify_h_index_to_lonlat: Convert hierarchical index strings to longitude/latitude centers

Description

Usage

Value

Arguments

Details