plot_graticule: Plot a graticule

In terra: Spatial Data Analysis

Plot a graticule

Description

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

Usage

## 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)

terra documentation built on Oct. 14, 2024, 5:07 p.m.