This function is used to add an inset map to the current map.
Arguments
- x
an sf object, or "worldmap" to use with mf_worldmap.
- pos
position, one of "bottomleft", "left", "topleft", "top", "bottom", "bottomright", "right", "topright"
- cex
share of the map width occupied by the inset
- fig
coordinates of the inset region (in NDC, see in ?par())
Details
If x is used (with pos and cex), the width/height ratio of the inset will
match the width/height ratio of x bounding box.
If fig is used, coordinates (xmin, xmax, ymin, ymax) are expressed as
fractions of the mapping space (i.e. excluding margins).
If map layers have to be plotted after the inset (i.e after mf_inset_off()),
please use add = TRUE.
It is not possible to plot an inset within an inset.
It is possible to plot anything (base plots) within the inset, not only map
layers.
Examples
mtq <- mf_get_mtq()
mf_map(mtq)
mf_inset_on(x = mtq[1, ], cex = .2)
mf_map(mtq[1, ])
mf_inset_off()
mf_map(mtq)
mf_inset_on(x = "worldmap", pos = "bottomleft")
mf_worldmap(x = mtq)
mf_inset_off()
mf_map(mtq)
mf_inset_on(fig = c(0, 0.25, 0, 0.25))
mf_map(x = mtq)
mf_inset_off()