create an Hexagonal grid
On Wed, 15 Sep 2010, Greg Snow wrote:
There is the hexbin package available through Bioconductor. It uses grid graphics I believe. If you want a base graphics solution, or just more hands on control (and using only CRAN packages), then check out the last example on the help page for the my.symbols function in the TeachingDemos package.
For sp objects, see the "hexagonal" type in spsample(), the low-level sp:::genHexGrid(), and HexPoints2SpatialPolygons(): hpts <- sp:::genHexGrid(dx=0.1, ll=c(0, 0), ur=c(1, 1)) pols <- HexPoints2SpatialPolygons(SpatialPoints(hpts)) plot(pols) Hope this helps, Roger
Roger Bivand Economic Geography Section, Department of Economics, Norwegian School of Economics and Business Administration, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 e-mail: Roger.Bivand at nhh.no