How do I read/work with PolyLineZM with maptools/sp?
On 05/16/2011 08:22 PM, Mikhail Titov wrote:
I would try s$M and s$Z to access M and Z when they are attributes.
But what do I do when they are not? It can work for points, but not a line as I can't have attributes for individual points of a line. I would prefer not to do any extra conversions in GIS before using R.
as(s, "SpatialPointsDataFrame")
Do I get it right that for now it is better to stick with shapefiles to read PolylineZM? Mikhail
Edzer Pebesma Institute for Geoinformatics (ifgi), University of M?nster Weseler Stra?e 253, 48151 M?nster, Germany. Phone: +49 251 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de http://www.52north.org/geostatistics e.pebesma at wwu.de