mf_label: Plot labels

In mapsf: Thematic Cartography

Plot labels

Description

Put labels on a map.

Usage

mf_label(
  x,
  var,
  col,
  cex = 0.7,
  overlap = TRUE,
  lines = TRUE,
  halo = FALSE,
  bg,
  r = 0.1,
  q = 1,
  ...
)

Arguments

x	object of class sf
var	name(s) of the variable(s) to plot
col	labels color, it can be a single color or a vector of colors
cex	labels cex, it can be a single size or a vector of sizes
overlap	if FALSE, labels are moved so they do not overlap.
lines	if TRUE, then lines are plotted between x,y and the word, for those words not covering their x,y coordinate
halo	if TRUE, a 'halo' is displayed around the text and additional arguments bg and r can be modified to set the color and width of the halo.
bg	halo color, it can be a single color or a vector of colors
r	width of the halo, it can be a single value or a vector of values
q	quality of the non overlapping labels placement. Possible values are 0 (quick results), 1 (reasonable quality and speed), 2 (better quality), 3 (insane quality, can take a lot of time).
...	further text arguments.

Value

No return value, labels are displayed.

Examples

mtq <- mf_get_mtq()
mf_map(mtq)
mtq$cex <- c(rep(.8, 8), 2, rep(.8, 25))
mf_label(
  x = mtq, var = "LIBGEO",
  col = "grey10", halo = TRUE, cex = mtq$cex,
  overlap = FALSE, lines = FALSE
)

mapsf documentation built on Nov. 21, 2023, 5:09 p.m.