tmap (version 2.0)

tm_add_legend: Add manual legend

Description

Creates a tmap-element that adds a manual legend.

Usage

tm_add_legend(type = c("fill", "symbol", "text", "line"), labels = NULL,
  col = NULL, size = NULL, shape = NULL, lwd = NULL, lty = NULL,
  text = NULL, alpha = NA, border.col = "black", border.lwd = 1,
  border.alpha = NA, title = "", is.portrait = TRUE,
  legend.format = list(), reverse = FALSE, z = NA)

Arguments

type

type of legend. One of "fill", "symbol", "text", or "line"

labels

legend labels

col

legend colors

size

legend symbol sizes (if type=="symbol")

shape

legend symbol shapes (if type=="symbol")

lwd

legend line widths (if type=="line")

lty

legend line types (if type=="line")

text

legend texts (if type=="text")

alpha

legend fill transparency

border.col

legend border col (if type is "fill" or "symbol")

border.lwd

legend border width (if type is "fill" or "symbol")

border.alpha

legend border alpha (if type is "fill" or "symbol")

title

legend title

is.portrait

is legend portrait (TRUE) or landscape (FALSE)?

legend.format

options to format the legend, see tm_layout

reverse

are the legend items reversed (by default FALSE)?

z

legend stack position

See Also

tm_symbols for an example