On Mon, 19 Jan 2009, Volkan Kepoglu wrote:
Is there any way to convert from tessellation to sp classes like
SpatialLines or SpatialPolygons?
library(spatstat)
library(maptools)
x <- runifpoint(42)
t <- dirichlet(x)
plot(t)
plot(x, add=TRUE)
sp <- as(t, "SpatialPolygons")
Error in .classEnv(thisClass) :
unable to find an environment containing class "tess"
any other suggestion?
Contributions welcome! The "tess" object has several different forms, each
of which will need a different method. My guess would be that coercing to
owin first, and coding the next coercion step(s) - there are also several
types of owin - would work, but there are more methods available now from
sp classes to spatstat classes than the reverse.
Roger
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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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