annulus_window

Creates annulus focal window around central pixel.

Calculates multi-scale geomorphometric terrain attributes from regularly gridded digital terrain models using a variable focal windows size (Ilich et al. (2023) <doi:10.1111/tgis.13067>).

Alexander Ilich

MultiscaleDTM

Multi-Scale Geomorphometric Terrain Attributes

Vincent Lecours

Benjamin Misiuk

Steven Murawski

annulus_window function

<dl><dt>radius</dt>
<dd>radius of inner annulus c(inner,outer). Inner radius must be less than or equal to outer radius.</dd>
<dt>unit</dt>
<dd>unit for radius. Either "cell" (number of cells, the default) or "map" for map units (e.g. meters).</dd>
<dt>resolution</dt>
<dd>resolution of intended raster layer (one number or a vector of length 2). Only necessary if unit= "map"</dd></dl>

Arguments

Creates annulus focal window — annulus_window

<dl>

<dt>radius</dt>
<dd>radius of inner annulus c(inner,outer). Inner radius must be less than or equal to outer radius.</dd>


<dt>unit</dt>
<dd>unit for radius. Either "cell" (number of cells, the default) or "map" for map units (e.g. meters).</dd>


<dt>resolution</dt>
<dd>resolution of intended raster layer (one number or a vector of length 2). Only necessary if unit= "map"</dd>

</dl>

annulus_window: Creates annulus focal window

Description

Usage

Value

Arguments