Alpha hull process
.alpha.hull.poly(XY, alpha = 1, buff = 0.1)
| XY | data.frame coordinates |
|---|---|
| alpha | integer |
| buff | numeric |
The functions ahull_to_SPLDF and alpha.hull.poly were originally posted in the website https://casoilresource.lawr.ucdavis.edu/software/r-advanced-statistical-package/working-spatial-data/converting-alpha-shapes-sp-objects/ in a now broken link. It is also used in functions written by David Bucklin, see https://github.com/dnbucklin/r_movement_homerange