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.shp
2 messages · Renata Grigorio, Roger Bivand
On Thu, 3 Apr 2008, Renata Grigorio wrote:
I'm trying to do an application thatread a file.shp in a server by Rserve, but I didn??t. Can you give me asugestion to do this?
The answer is no. The R lists have a posting guide, which says that if you do not give a simple, working example of your problem, you should not expect an answer. If you send a script with a couple of commands illustrating your problem, someone will try to help. For the time being, forget Rserve, try to make the script work at the command line. There may not be anyone at all who uses Rserve for spatial data - all such interfaces, like (D)COM, have trouble with rich objects. Unless you have reflected the R class used to read the shapefile into your target language, you have no easy access to its contents, and the same applies in the other direction too. As you know, you read shapefiles best in R by: library(rgdal) shp <- readOGR(dsn="...", layer="...") where shp is a Spatial*DataFrame defined in the sp package. But that is on the R side of the interface, not on the foreign language side. You need to say what you actually need to do, and to think through what data needs to be on which side. You could just as will use GDAL/OGR bindings in your foreign language and extract the data of interest there. A long no, but there you go. Roger
Thank you para armazenamento! [[alternative HTML version deleted]]
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