rearrange data in SpatialPointsDataFrame or SpatialGridDataFrame for plotting with spplot (levelplot/xyplot wrapper)
rearrange SpatialPointsDataFrame for plotting with spplot or levelplot
flipHorizontal(x) flipVertical(x)
x |
object of class SpatialGridDataFrame |
object of class SpatialGridDataFrame, with pixels flipped horizontally or vertically. Note that the spatial structure is destroyed (or at least: drastically changed).
Michael Sumner
data(meuse.grid) # data frame gridded(meuse.grid) = c("x", "y") # promotes to fullgrid(meuse.grid) = TRUE d = meuse.grid["dist"] image(d, axes=TRUE) image(flipHorizontal(d), axes=TRUE) image(flipVertical(d), axes=TRUE)
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