HexData-class

An S4 class representing hexified data. Contains the original user data
plus cell assignments from the hexification process.

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'

HexData-class function

<dl>
<dt><code>data</code></dt>
<dd>Data frame or sf object. The original user data (untouched).</dd></dl>
<dt><code>grid</code></dt>
<dd>HexGridInfo object. The grid specification used.</dd>
<dt><code>cell_id</code></dt>
<dd>Cell IDs for each row of data. Numeric for ISEA grids,
character for H3 grids.</dd>
<dt><code>cell_center</code></dt>
<dd>Matrix. Two-column matrix (lon, lat) of cell centers.</dd>

Slots

HexData Class — HexData-class

<dl>
<dt><code>data</code></dt>
<dd>Data frame or sf object. The original user data (untouched).</dd>


<dt><code>grid</code></dt>
<dd>HexGridInfo object. The grid specification used.</dd>


<dt><code>cell_id</code></dt>
<dd>Cell IDs for each row of data. Numeric for ISEA grids,
character for H3 grids.</dd>


<dt><code>cell_center</code></dt>
<dd>Matrix. Two-column matrix (lon, lat) of cell centers.</dd>


</dl>

HexData-class: HexData Class

Description

Arguments

Slots

Details

See Also