This function is a wrapper of 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, group = NA, ...)
line color. See tm_lines
.
text to display. By default, it is the variable named "level"
of the shape that is created with smooth_map
text size (see tm_text
)
see tm_text
see tm_text
see tm_text
name of the group to which this layer belongs in view mode. Each group can be selected or deselected in the layer control item. Set group = NULL
to hide the layer in the layer control item. By default, it will be set to the name of the shape (specified in tm_shape
).