the function is no longer exported as function, but rather as coerce method:
gridPol <- as(gridPix, "SpatialPolygons") will call this function. Calling the old function can be done with gridPol <- sp:::as.SpatialPolygons.SpatialPixels(gridPix) but is not recommended - names of unexported functions may change without warning. On 03/17/2013 12:54 PM, ASANTOS wrote: > Dear list members, > > I'm trying to create a as.SpatialPolygons.SpatialPixels object with > sp package, normally this function works, but I try to use without > success, above a example in this list posted by Dr. Justiniano: > > ## > require(sp) > set.seed(12) > xy <- cbind(runif(n=500,min=0, max=20), > runif(n=500,min=0, max=20)) > ## points > pontos <- SpatialPoints(xy) > ## grid of "quadrats" > ## i. as SpatialGrid > grid <- SpatialGrid(grid = GridTopology(c(0.5,0.5), c(1,1), c(20,20))) > ## ii. as SpatialPixels > gridPix <- grid > fullgrid(gridPix) <- FALSE > ## iii. as SpatialPolygons > gridPol <- as.SpatialPolygons.SpatialPixels(gridPix) > # > And my question is whats is happening with the > as.SpatialPolygons.SpatialPixels() function? > > Thanks > -- Edzer Pebesma Institute for Geoinformatics (ifgi), University of Münster Weseler Straße 253, 48151 Münster, Germany. Phone: +49 251 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de http://www.52north.org/geostatistics e.pebe...@wwu.de _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo