I realized that sp classes SpatialPolygons and SpatialLines do not handle Z coordinates. Are there alternatives for spatial geometries with Z coordinates? I would like to read and write 3D line and polygon shapefiles (that represent roads, streams, ridges or basins) and analyse them in R.
Thanks in advance for suggestions, Manuel -- _________________ Manuel Campagnolo http://math.isa.utl.pt/~mlc/ _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
