This is a very fast version of cir with allowOverlap = TRUE, allowDuplicates = FALSE, returnIndices = TRUE, returnDistances = TRUE, and includeBehavior = "excludePixels". It is used inside spread2, when asymmetry is active. The basic algorithm is to run cir just once, then add to the xy coordinates of every locus
.cirSpecialQuick(landscape, loci, maxRadius, minRadius)
Raster on which the circles are built.
Numeric. An alternative to
Numeric vector of length 1 or same length as coords
Numeric vector of length 1 or same length as