scalebar
Add a scalebar to a plot
sbar(d, xy=NULL, type="line", divs=2, below="",
lonlat=NULL, label, adj=c(0.5, -1), lwd=2, xpd=TRUE, ...)d |
numeric. Distance covered by the scalebar. In the units of the coordinates of the plot, and in km for angular (longitude/latitude) data; see |
xy |
x and y coordinate to place the plot. Can be NULL. Use |
type |
"line" or "bar" |
divs |
number of divisions for a bar: 2 or 4 |
below |
character. Text to go below scalebar (e.g., "kilometers") |
lonlat |
logical or NULL. If logical, |
adj |
adjustment for text placement |
label |
vector of three numbers to label the scale bar (beginning, midpoint, end) |
lwd |
line width for the "line" type scalebar |
xpd |
logical. If |
... |
graphical arguments to be passed to other methods |
none
f <- system.file("ex/meuse.tif", package="terra")
r <- rast(f)
plot(r)
sbar(1000)
sbar(1000, xy=c(178500, 333500), type="bar", divs=4, cex=.8)
f <- system.file("ex/elev.tif", package="terra")
r <- rast(f)
plot(r, type="interval")
sbar(20, c(6.2, 50.1), type="bar", cex=.8, divs=4)
sbar(15, c(6.3, 50), type="bar", below="km", label=c(0,7.5,15), cex=.8)
sbar(15, c(6.65, 49.9), cex=.8, label=c(0,"km",15))
sbar(15, c(6.65, 49.8), cex=.8, label="15 kilometer", lwd=5)
sbar(15, c(6.65, 49.7), divs=4, cex=.8, below="km")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.