CLUSexample

From Kyle Lochhead and Tyler Muhly's CLUS road simulation example. <code>SpatRaster</code>
files created with the terra package must be saved with <code><a href="/link/terra%3A%3Awrap()?package=roads&version=1.2.0" data-mini-rdoc="roads::terra::wrap()">terra::wrap()</a></code> and
need to be unwrapped before they are used. <code>prepExData()</code> does this.

datasets

Iterative least cost path and minimum spanning tree methods for projecting
forest road networks. The methods connect a set of target points to an existing
road network using 'igraph' <https://igraph.org> to identify least cost routes.
The cost of constructing a road segment between adjacent pixels is determined
by a user supplied weight raster and a weight function; options include the
average of adjacent weight raster values, and a function of the elevation
differences between adjacent cells that penalizes steep grades. These road
network projection methods are intended for integration into R workflows and
modelling frameworks used for forecasting forest change, and can be applied
over multiple time-steps without rebuilding a graph at each time-step.

Sarah Endicott

roads

Road Network Projection

Kyle Lochhead

Josie Hughes

Patrick Kirby

Her Majesty the Queen in Right of Canada as represented by the Minister of the Environment 

Province of British Columbia 

CLUSexample function

A named list with components:<ul>
<li>cost: a <code>PackedSpatRaster</code> representing road building cost.</li>
<li>landings: an sf dataframe of points representing landing locations.</li>
<li>roads: a <code>PackedSpatRaster</code> representing existing roads.</li>
</ul>

Format

From Kyle Lochhead and Tyler Muhly's CLUS road simulation example. <code>SpatRaster</code>
files created with the terra package must be saved with <code><a href='https://rdrr.io/pkg/terra/man/wrap.html'>terra::wrap()</a></code> and
need to be unwrapped before they are used. <code>prepExData()</code> does this.

CLUSexample: Data from the CLUS example

Description

Usage

Arguments

Format

Examples