hex_corners_to_sf

Low-level helper to create a single hexagon polygon from corner coordinates.
Most users should use <code>cell_to_sf</code> instead.

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'

hex_corners_to_sf function

<dl><dt>lon</dt>
<dd>numeric vector of length 6 (longitude)</dd>
<dt>lat</dt>
<dd>numeric vector of length 6 (latitude)</dd>
<dt>crs</dt>
<dd>integer CRS (default 4326)</dd></dl>

Arguments

Build an sf POLYGON from six (lon, lat) corner pairs — hex_corners_to_sf

<dl>

<dt>lon</dt>
<dd>numeric vector of length 6 (longitude)</dd>


<dt>lat</dt>
<dd>numeric vector of length 6 (latitude)</dd>


<dt>crs</dt>
<dd>integer CRS (default 4326)</dd>

</dl>

hex_corners_to_sf: Build an sf POLYGON from six (lon, lat) corner pairs

Description

Usage

Value

Arguments

See Also