hexify_forward_to_face

Projects to a known face (skips face detection).

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_forward_to_face function

<dl><dt>face</dt>
<dd>Face index (0-19)</dd>
<dt>lon</dt>
<dd>Longitude in degrees</dd>
<dt>lat</dt>
<dd>Latitude in degrees</dd></dl>

Arguments

Forward projection to specific face — hexify_forward_to_face

<dl>

<dt>face</dt>
<dd>Face index (0-19)</dd>


<dt>lon</dt>
<dd>Longitude in degrees</dd>


<dt>lat</dt>
<dd>Latitude in degrees</dd>

</dl>

hexify_forward_to_face: Forward projection to specific face

Description

Usage

Value

Arguments

See Also