plot_graticule function

Plot a graticule

Plot a SpatGraticule. You can create a SpatGraticule with graticule. methods

## S4 method for signature 'SpatGraticule,missing'
plot(x, y, background=NULL, col="black", mar=NULL, labels=TRUE,
        retro=FALSE, lab.loc=c(1,1), lab.lon=NULL, lab.lat=NULL, lab.cex=0.65, 
        lab.col="black", off.lat=0.25, off.lon=0.25, box=FALSE, box.col="black",
        add=FALSE, ...)

Arguments

• x: SpatRaster or SpatVector
• y: missing or positive integer or name indicating the layer(s) to be plotted
• background: background color. If NULL, no background is drawn
• mar: numeric vector of length 4 to set the margins of the plot. To make space for the legend you may use something like c(3.1, 3.1, 2.1, 7.1). To fill the plotting canvas, you can use c(0,0,0,0. Use NA to not set the margins
• col: character. Color for the graticule lines
• labels: logical. If TRUE, show graticule labels
• retro: logical. If TRUE, show "retro" instead of decimal labels with the graticule
• lab.loc: numeric. The first number indicates where the longitude graticule labels should be drawn (1=bottom, 2=top, NA=not drawn, any other number=top and bottom). The second number indicates where the latitude graticule labels should be drawn (1=left, 2=right, NA=not drawn, any other number=left and right)
• lab.lon: positive integers between 1 and the number of labels, indicating which longitude graticule labels should be included
• lab.lat: positive integers between 1 and the number of labels, indicating which latitude graticule labels should be included
• lab.cex: double. size of the label font
• lab.col: character. color of the labels
• off.lon: numeric. longitude labels offset
• off.lat: numeric. latitude labels offset
• box: logical. If TRUE, the outer lines of the graticule are drawn on top with a sold line lty=1
• box.col: character. color of the outer lines of the graticule if box=TRUE
• add: logical. Add the graticule to the current plot?
• ...: additional graphical arguments passed to lines

See Also

graticule, plot, points, lines, polys, image, scatterplot, scale bar: sbar, north arrow: north

Examples

g <- graticule(60, 30, crs="+proj=robin")

plot(g, background="azure", col="red", lty=2, box=TRUE)
plot(g, background="azure", col="light gray", lab.loc=c(1,2), 
                lab.lon=c(2,4,6), lab.lat=3:5, lty=3, retro=TRUE)