Spatial selection
Geometrically subset SpatRaster or SpatVector (to be done) by drawing on a plot (map).
## S4 method for signature 'SpatRaster' sel(x, ...) ## S4 method for signature 'SpatVector' sel(x, use="rec", draw=TRUE, col="cyan", ...)
x |
SpatRaster or SpatVector |
use |
character indicating what to draw. One of "rec" (rectangle) or "pol" (polygon) |
draw |
logial. If |
col |
color to be used for drawing if |
... |
additional graphics arguments for drawing |
SpatRaster or SpatVector
## Not run: # select a subset of a SpatRaster r <- rast(nrow=10, ncol=10) values(r) <- 1:ncell(r) plot(r) s <- sel(r) # now click on the map twice # plot the selection on a new canvas: x11() plot(s) # vector f <- system.file("ex/lux.shp", package="terra") v <- vect(f) plot(v) x <- sel(v) # now click on the map twice x ## End(Not run)
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