This function will retrieve the position of a vertex or a face on a <code>hexagrid</code> or <code>trigrid</code> object.

Implementation of icosahedral grids in three dimensions. The spherical-triangular tessellation can be set to create grids with custom resolutions. Both the primary triangular and their inverted penta-hexagonal grids can be calculated. Additional functions are provided that allow plotting of the grids and associated data, the interaction of the grids with other raster and vector objects, and treating the grids as a graphs.

Adam Kocsis

icosa

Global Triangular and Penta-Hexagonal Grids Based on Tessellated
Icosahedra

Adam T. Kocsis

Deutsche Forschungsgemeinschaft 

FAU GeoZentrum Nordbayern 

pos function

<dl><dt>gridObj</dt>
<dd>a (<code>hexagrid</code> or <code>trigrid</code>) Icosahedral grid object.</dd>
<dt>names</dt>
<dd>(<code>character</code>) Vector of the names that are to be looked up.</dd>
<dt>output</dt>
<dd>(<code>character</code>) The coordinate system in which the names are to be shown: use <code>"polar"</code> for longitude-latitude and <code>"cartesian"</code> for XYZ output.</dd></dl>

Arguments

Position of face centers and vertices on a grid — pos

<dl>

<dt>gridObj</dt>
<dd>a (<code>hexagrid</code> or <code>trigrid</code>) Icosahedral grid object.</dd>


<dt>names</dt>
<dd>(<code>character</code>) Vector of the names that are to be looked up.</dd>


<dt>output</dt>
<dd>(<code>character</code>) The coordinate system in which the names are to be shown: use <code>"polar"</code> for longitude-latitude and <code>"cartesian"</code> for XYZ output.</dd>

</dl>

pos: Position of face centers and vertices on a grid

Description

Usage

Value

Arguments

Details

Examples