Diameter of the circumscribing circle around patches
get_circumscribingcircle(landscape, directions = 8, level = "patch")RasterLayer or matrix (with x, y, id columns)
The number of directions in which patches should be connected: 4 (rook's case) or 8 (queen's case).
Either 'patch' or 'class' for the corresponding level.
The diameter of the smallest circumscribing circle around a patch in the landscape is based on the maximum distance between the corners of each cell. This ensures that all cells of the patch are included in the patch.
Based on C++ code from Project Nayuki (https://www.nayuki.io/page/smallest-enclosing-circle).
# get circle around each patch
get_circumscribingcircle(landscape)
# get circle around whole class
get_circumscribingcircle(landscape, level = "class")
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