View source: R/force_isotropy.R
force_isotropy  R Documentation 
Averages transition values fromto adjacent cells
force_isotropy(cost_surface)
cost_surface 

force_isotropy averages (mean) the transition values fromto adjacent cells in a cost_surface. Through this, anisotropic cost functions (i.e. where movement downslope is easier than movement upslope) are converted to an isotropic cost function. When calculating an least cost path using the resultant surface, the least cost path from AB and BA will be the same. This is in contrast to anisotropic cost surfaces where the least cost path from AB and BA can differ.
TransitionLayer
(gdistance package) Conductance surface where transition values fromto adjacent cells have been averaged
Joseph Lewis
Herzog, I (2020). Spatial Analysis Based On Cost Functions, in Gillings, M., Hacıgüzeller, P., Lock, G. Archaeological Spatial Analysis. Routledge. pp. 333358. doi: 10.4324/978135124385818
r < raster::raster(system.file('external/maungawhau.grd', package = 'gdistance')) slope_cs < create_slope_cs(r, cost_function = 'tobler', neighbours = 16, max_slope = NULL) slope_cs_iso < force_isotropy(slope_cs)
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