Hi Michael,maybe you should try the function dp() in the package shapefiles that is an implementation of the Douglas-Peucker polyLine simplification algorithm.
HTH David
Michael Friendly a écrit :
The Guerry package contains two maps of france (gfrance, gfrance85) which are quite detailed and large in size (~900K). In writing a vignette for the package, there are quite a few figures that use the map multiple times in a layout, and consequently result in huge file sizes for the .PDF files created. For these purposes, the map need not be nearlyso detailed.I'm wondering if there is a facility to "thin" the map by drawing it at a lower density of lines in the polygon regions. When I was working with SAS, there was a GREDUCE procedure that did this nicely.thanks, -Michael
-- *************************************************** David PINAUD Ingénieur de Recherche "Analyses spatiales" Centre d'Etudes Biologiques de Chizé - CNRS UPR193479360 Villiers-en-Bois, France poste 485
Tel: +33 (0)5.49.09.35.58 Fax: +33 (0)5.49.09.65.26 http://www.cebc.cnrs.fr/ *************************************************** __________ Information from ESET Mail Security, version of virus signature database 4618 (20091118) __________ The message was checked by ESET Mail Security. http://www.eset.com
<<attachment: pinaud.vcf>>
_______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
