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Takes contours of contourLines function and extracts the associated coordinates.
contourLines
get.contours(x)
Returns a 2-column matrix containing the coordinates making up the contours in contours.list.
A list returned by the contourLines function.
Joshua French
contourLines, contour
data(volcano) x <- 10*1:nrow(volcano) y <- 10*1:ncol(volcano) cL <- contourLines(x, y, volcano) out <- get.contours(cL)
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