Plots labels, that is a textual (rather than color) representation of values, on top an existing plot (map).
# S4 method for RasterLayer
text(x, labels, digits=0, fun=NULL, halo=FALSE, ...)# S4 method for RasterStackBrick
text(x, labels, digits=0, fun=NULL, halo=FALSE, ...)
# S4 method for SpatialPolygons
text(x, labels, halo=FALSE, ...)
# S4 method for SpatialPoints
text(x, labels, halo=FALSE, ...)
Raster*, SpatialPoints* or SpatialPolygons* object
character. Optional. Vector of labels with length(x) or a variable name from names(x)
integer. how many digits should be used?
function to subset the values plotted (as in rasterToPoints)
logical. If TRUE a 'halo' is printed around the text. If TRUE, additional arguments hc='white' and hw=0.1 can be modified to set the colour and width of the halo
additional arguments to pass to graphics function text
r <- raster(nrows=4, ncols=4)
r <- setValues(r, 1:ncell(r))
plot(r)
text(r)
plot(r)
text(r, halo=TRUE, hc='blue', col='white', hw=0.2)
plot(r, col=bpy.colors(5))
text(r, fun=function(x){x<5 | x>12}, col=c('red', 'white'), vfont=c("sans serif", "bold"), cex=2)
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