legendPropTriangles: Legend for Double Proportional Triangles Maps

In cartography: Thematic Cartography

Legend for Double Proportional Triangles Maps

Description

Plot legends for double proportional triangles maps.

Usage

legendPropTriangles(
  pos = "topleft",
  title.txt,
  var.txt,
  var2.txt,
  title.cex = 0.8,
  cex = 1,
  values.cex = 0.6,
  var,
  var2,
  r,
  r2,
  col = "red",
  col2 = "blue",
  frame = FALSE,
  values.rnd = 0,
  style = "c"
)

Arguments

pos	position of the legend, one of "topleft", "top", "topright", "right", "bottomright", "bottom", "bottomleft", "left" or a vector of two coordinates in map units (c(x, y)).
title.txt	title of the legend.
var.txt	name of var.
var2.txt	name of var2.
title.cex	size of the legend title.
cex	size of the legend. 2 means two times bigger.
values.cex	size of the values in the legend.
var	a first vector of positive values.
var2	a second vector of positive values.
r	a first vector of sizes.
r2	a second vector of sizes.
col	color of symbols.
col2	second color of symbols.
frame	whether to add a frame to the legend (TRUE) or not (FALSE).
values.rnd	number of decimal places of the values in the legend.
style	either "c" or "e". The legend has two display styles, "c" stands for compact and "e" for extended.

Examples

library(sf)
mtq <- st_read(system.file("gpkg/mtq.gpkg", package="cartography"))
plot(st_geometry(mtq))
box()
var <- runif(10, 0,100)
var2 <- runif(10, 0,100)
r <- sqrt(var)*1000
r2 <- sqrt(var2)*1000
legendPropTriangles(pos = "topright", var.txt = "population 1",
                    var2.txt = "population 2", title.txt="Population totale",
                    title.cex = 0.8, values.cex = 0.6, cex = 1,
                    var = var, var2 = var2, r = r, r2 = r2,
                    col="green", col2="yellow", frame=TRUE, values.rnd=2,
                    style="c")

cartography documentation built on Sept. 14, 2023, 5:08 p.m.