rangeDist: Use Calcuate distance to range edge

In bossMaps: Convert Binary Species Range Maps into Continuous Surfaces Based on Distance to Range Edge

Description

Calculates distance to range boundary and returns a raster object. Range is projected to World Azimuthal Equidistant (centered on range centroid) before buffering. Starting a cluster with beginCluster() can improve processing time if multiple cores are available.

Usage

rangeDist(range, points, domain, domainkm = 1000, fact = 2, mask = FALSE,
  verbose = TRUE, ...)

Arguments

range	SpatialPolygons* object with species range
points	Optional SpatialPoints* object with species occurrences to be included in defining the domain, but not in the distance calculations.
domain	Empty raster extent or path to geotif representing the potential modelling domain with resolution, projection, etc.
domainkm	Define the distance (in km) from expert range to include in the modeling domain. The range polygon will be buffered by this value and used to define a rectangular region around the range. See mask to additionally mask pixels with distances farther than a specified value.
fact	numeric aggregation factor used to speed up distance calculation (larger numbers faster but less accurate).
mask	logical indicating whether to mask the domain to the range buffered by domainkm. If FALSE (the default), the returned object will have complete data across a rectangular domain. If TRUE, the rectangular domain will be masked by the buffered range.
verbose	logical indicating whether to print status messages.
...	additional functions to be passed to writeRaster

bossMaps documentation built on May 2, 2019, 3:57 p.m.