tm_lines
and tm_text
aimed to draw isopleths, which can be created with smooth_map
.
tm_iso(col = NA, text = "level", size = 0.5, remove.overlap = TRUE, along.lines = TRUE, overwrite.lines = TRUE, ...)
tm_lines
."level"
of the shape that is created with smooth_map
tm_text
)tm_text
tm_text
tm_text
smooth_map