roads-package | R Documentation |
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.
Maintainer: Sarah Endicott sarah.endicott@ec.gc.ca (ORCID)
Authors:
Kyle Lochhead Kyle.Lochhead@gov.bc.ca
Josie Hughes josie.hughes@ec.gc.ca
Patrick Kirby
Other contributors:
Her Majesty the Queen in Right of Canada as represented by the Minister of the Environment (Copyright holder for included functions buildSimList, getLandingsFromTarget, pathsToLines, plotRoads, projectRoads, rasterizeLine, rasterToLineSegments) [copyright holder]
Province of British Columbia (Copyright holder for included functions getGraph, lcpList, mstList, shortestPaths, getClosestRoad, buildSnapRoads) [copyright holder]
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