mc_dtm

Acquires a Digital Terrain Model from online sources (via the elevatr
package) for the area enclosed by the supplied polygon, and crops it to the
polygon's extent. This replaces the implicit download mechanism of
movecost &lt;= 2.x's <code>studyplot</code> parameter (which remains available in
<code>mc_surface</code> and simply calls this function).

Provides the facility to calculate non-isotropic accumulated cost surfaces, least-cost paths, least-cost corridors, least-cost networks, ranked alternative paths, cost allocation and cost boundaries, using a number of human-movement-related cost functions that can be selected by the user. The package is built around a compute-once design: a single cost surface object is created first and then reused by every analysis function, avoiding redundant computation. Visualisation is fully decoupled from computation and is provided through 'ggplot2' methods that can be invoked, customised, and re-invoked at any time without re-running any analysis. It just requires a Digital Terrain Model, a start location and (optionally) destination locations. See Alberti (2019) <doi:10.1016/j.softx.2019.100331>.

Gianmarco Alberti

movecost

Calculation of Slope-Dependant Accumulated Cost Surface,
Least-Cost Paths, Least-Cost Corridors, Least-Cost Networks
Related to Human Movement Across the Landscape

mc_dtm function

<dl><dt>studyplot</dt>
<dd>polygon (sf, SpatVector, or legacy sp class) representing
the study area for which elevation data are acquired.</dd>
<dt>z</dt>
<dd>zoom level of the downloaded elevation data (0 to 15; 9 by
default).</dd></dl>

Arguments

Acquires a Digital Terrain Model from online sources (via the elevatr
package) for the area enclosed by the supplied polygon, and crops it to the
polygon's extent. This replaces the implicit download mechanism of
movecost &lt;= 2.x's <code>studyplot</code> parameter (which remains available in
<code>mc_surface</code> and simply calls this function).

Download elevation data for a study area — mc_dtm

<dl>

<dt>studyplot</dt>
<dd>polygon (sf, SpatVector, or legacy sp class) representing
the study area for which elevation data are acquired.</dd>


<dt>z</dt>
<dd>zoom level of the downloaded elevation data (0 to 15; 9 by
default).</dd>

</dl>

mc_dtm: Download elevation data for a study area

Description

Usage

Value

Arguments

Details

See Also

Examples