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, z = NA)
Arguments
type
type of legend. One of "fill", "symbol", "text", or "line"
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 transparancy
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")
is.portrait
is legend portrait (TRUE) or landscape (FALSE)