Hi all,

For every unique "i" in 1:nrow(mydata) I have two sets of spatial "x" and
"y" coordinates, one set for the start of the line (c("x", "y")) and another
set for the end of the line (c("X2", "Y2")).  Essentially I am looking for
the simplest and fastest way of creating a series of coordinates compatible
with the buffer() command in adehabitat.  I have my own function for doing
this based on simple trigonometry (similar to
http://www.nabble.com/polygon-shapefile-from-line-edge-coordinate-list-tt15900148.html#a15900148)
but it is not extremely fast and I was wondering if there was a better way.


Cheers
Tyler

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