legendWaffle: Legend for Typology Maps

In cartography: Thematic Cartography

Legend for Typology Maps

Description

Plot legend for typology maps.

Usage

legendWaffle(
  pos = "topleft",
  title.txt = "Title of the legend",
  title.cex = 0.8,
  values.cex = 0.6,
  categ,
  cex = 1,
  cell.txt = "1 cell = ...",
  col,
  cell.size,
  border = "white",
  lwd = 0.2,
  frame = FALSE
)

Arguments

pos	position of the legend, one of "topleft", "top", "topright", "right", "bottomright", "bottom", "bottomleft", "bottomleftextra", "left" or a vector of two coordinates in map units (c(x, y)).
title.txt	title of the legend.
title.cex	size of the legend title.
values.cex	size of the values in the legend.
categ	vector of categories.
cex	size of the legend. 2 means two times bigger.
cell.txt	label for cell values.
col	a vector of colors.
cell.size	size of the cell
border	color of the cells borders.
lwd	width of the cells borders
frame	whether to add a frame to the legend (TRUE) or not (FALSE).

Examples

library(sf)
mtq <- st_read(system.file("gpkg/mtq.gpkg", package="cartography"))
plot(st_geometry(mtq))
box()

# Define labels and colors
someLabels <- c("red color", "yellow color", "green color", "black color")
someColors <- c("red", "yellow", "green", "black")
legendWaffle(categ = someLabels, col = someColors, cell.size = 750)

cartography documentation built on Aug. 8, 2025, 6:25 p.m.