[R-sig-Debian] Issues with unionSpatialPolygons on Ubuntu

[Michael Rutter]

On 06/05/2010 07:28 PM, Kenneth Takagi wrote:
> Hi,
>
> I've cross posted with r-sig-debian since they may be an issue for linux
> (never had this problem on my windows machine...)
> I recently made the switch to Ubuntu 10.04 (lucid), and found that
> unionSpatialPolygons() gives me the following error when trying to
> combine polygons within a shapefile:
>
> # Read in shapefile and merge polygons
> foo <- readShapePoly("foo.shp", proj4string = CRS("+init=epsg:2272"))
> IDs <- as.character(foo$ID)
> SP_out <- unionSpatialPolygons(foo, IDs)
> Error: isTRUE(gpclibPermitStatus()) is not TRUE
>
> I've seen some posts about a package "rgeos" which may have something to
> do with this error, and I downloaded the source from:
> http://r-forge.r-project.org/R/?group_id=602
>
> But when I've tried to install by source using R CMD INSTALL (or using
> install.packages()) I get the following error message:
>
> ...lines of output not shown...
> rgeos_misc.c: In function ?rgeos_hausdorffdistance?:
> rgeos_misc.c:62: error: ?GEOSHausdorffDistance_r? undeclared (first use
> in this function)
> rgeos_misc.c:62: error: (Each undeclared identifier is reported only once
> rgeos_misc.c:62: error: for each function it appears in.)
> make: *** [rgeos_misc.o] Error 1
> ERROR: compilation failed for package ?rgeos?
>
> I'm using R version 2.11.1 (2010-05-31), in ubuntu 10.04 LTS
>
> Thanks for any help you can offer on getting unionSpatialPolygon up and
> running!
>
> Ken

Ken,

Without a "foo.shp" file to use as an example, I can't recreate your 
original R error.  Can you redo the example given on page 57 of the 
maptools pdf manual?

However, I can recreate the error when trying to install rgeos.  That 
error needs to be addressed with the rgeos developers, as it appears 
that is an error in their code, not something that is missing in R or in 
Ubuntu.

Hope this helps,
Michael

-- 
Dr. Michael A. Rutter
School of Science
Penn State Erie, The Behrend College
Station Road
Erie, PA 16563
http://math.bd.psu.edu/faculty/rutter