cell_to_index

Advanced function for working with hierarchical index strings.
Most users don't need this - use cell IDs directly.

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'

cell_to_index function

<dl><dt>cell_id</dt>
<dd>Numeric vector of cell IDs</dd>
<dt>grid</dt>
<dd>A HexGridInfo or HexData object</dd></dl>

Arguments

Convert cell ID to hierarchical index string — cell_to_index

<dl>

<dt>cell_id</dt>
<dd>Numeric vector of cell IDs</dd>


<dt>grid</dt>
<dd>A HexGridInfo or HexData object</dd>

</dl>

cell_to_index: Convert cell ID to hierarchical index string

Description

Usage

Value

Arguments