[R-sig-Geo] coerce SpatialPolygonsDataFrame to SpatialLinesDataFrame for plotKML

[Anthony Fischbach]

Thank you Ross, 

To complete the conversion from SpatialPolygonsDataFrame to
SpatialLinesDataFrame 
I add the following lines to my toy example.

#########################################################
         ## Extract lines from SpatialPolygonsDataFrame
sl<-as(ver, "SpatialLines")                                 
          ## convert SpatialLines to SpatialLinesDataFrame,
          ## appending the original data.frame from the
SpatialPolygonsDataFrame
spLdf<-SpatialLinesDataFrame(sl, data=ver at data, match.ID = TRUE)   
#########################################################



-----
Tony Fischbach, Wildlife Biologist
Walrus Research Program
Alaska Science Center
U.S. Geological Survey
4210 University Drive
Anchorage, AK 99508-4650

AFischbach at usgs.gov
http://alaska.usgs.gov/science/biology/walrus
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