On Thu, 1 Nov 2007, Markus Loecher wrote:
> Dear all,
> I understand that plot.Map (the default method for plotting shape objects) is
> deprecated, however I have not found a working method converting my shape
> file into either a polylist or sp class.
> I tried the following
> p2roads <- read.shape("sf.shp")
> SF.map <- Map2poly(p2roads)
> where sf.shp is a shape object of the San Francisco street map, and get the
> following error message:
> Error in Map2poly(p2roads) : maptype not poly
> Are there differences between shape files ? Which other way could I try to
> convert my shape object so that plot.Spatial will work ?
For example:
library(maptools)
getinfo.shape("sf.shp")
# presumably lines
roads <- readShapeLines("sf.shp")
class(roads)
plot(roads, axes=TRUE)
or
library(rgdal)
roads <- readOGR(".", "sf")
class(roads)
plot(roads, axes=TRUE)
Roger
>
> Thanks !
>
> Markus
>
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--
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: [EMAIL PROTECTED]
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