Alpha shapes to polygons: http://rpubs.com/geospacedman/alphasimple
And Michael Sumner already linked to the one I'm using - alpha hull to polygon shapefile: https://stat.ethz.ch/pipermail/r-sig-geo/2012-March/014409.html Nicole K.S. Barker Ph.D Student / Étudiante au Doctorat Laval University / Université Laval Ducks Unlimited Canada / Canards Illimités Canada LinkedIn: www.linkedin.com/in/nksbarker Phone: 647-470-3207 On Tue, Sep 3, 2013 at 8:09 AM, Michael Sumner <mdsum...@gmail.com> wrote: > I found a few discussions just by searching terms: > > https://stat.ethz.ch/pipermail/r-sig-geo/2012-March/014409.html > > http://casoilresource.lawr.ucdavis.edu/drupal/book/export/html/519 > > > > On Tue, Sep 3, 2013 at 8:25 PM, Francesco Carotenuto > <carotenuto_france...@yahoo.it> wrote: > > Hi, is there a way to convert an "ashape" object (object class of > package alphahull) into a spatial polygon? I need only the alpha hull > object (the external contour) and not the delaunay triangles. If not, is > there a way to simply create a single spatial polygon from a matrix > containing xy coordinates? > > Thanks > > [[alternative HTML version deleted]] > > > > _______________________________________________ > > R-sig-Geo mailing list > > R-sig-Geo@r-project.org > > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > > > -- > Michael Sumner > Hobart, Australia > e-mail: mdsum...@gmail.com > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > [[alternative HTML version deleted]]
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