R/srPeri.R

In geo: Draw and Annotate Maps, Especially Charts of the North Atlantic

Defines functions srPeri

Documented in srPeri

srPeri <-
function(sr)
{
  lat <- sr2d(sr)$lat
  lon <- sr2d(sr)$lon
  lat <- lat + c(1/8, 1/8,  - 1/8,  - 1/8, 1/8)
  lon <- lon + c(0.25,  - 0.25,  - 0.25, 0.25, 0.25)
  data.frame(lat = lat, lon = lon)
}

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