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# Author: Robert J. Hijmans
# contact: r.hijmans@gmail.com
# Date : Febraruy 2010
# Version 0.0
# Licence GPL v3
if (!isGeneric("extent")) {
setGeneric("extent", function(x, ...)
standardGeneric("extent"))
}
setMethod('extent', signature(x='VectorLayer'),
function(x, ...) {
extent(as.vector(range(x@data@xy)))
}
)
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