legend.box: Define location of a legend box.
In mapplots: Data Visualisation on Maps

legend.box

R Documentation

Define location of a legend box.

Description

Define a location of a legend box. Used by legend.bubble and legend.pie. This is not intended as a user function.

Usage

legend.box(x, y = NULL, maxradius, mab = 1.2, inset = 0, double = F)

Arguments

`x, y`	the x and y co-ordinates to be used to position the legend, see `legend`.
`maxradius`	the (maximum) radius of the pie or bubble to be represented in the legend.
`mab`	the margin around the bubble or pie.
`inset`	inset distance(s) from the margins as a fraction of the plot region when legend is placed by keyword.
`double`	logical, should the box be double the 'normal' size to allow for pies and bubbles to be displayed in a single legend box. generally not very pretty.

Value

Returns the corner points of the legend box in user coordinates

Author(s)

Hans Gerritsen

Examples

plot(1)
box <- legend.box("topleft", maxradius=0.2, inset=0.02)
rect(box[1],box[2],box[3],box[4], border="red", lwd=3, lty=2)
legend.bubble("topleft", z=10, maxradius=0.2, inset=0.02)

mapplots documentation built on Aug. 25, 2023, 5:15 p.m.