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display a scale for measuring distances on a plot (ggplot2)
gadm_showScale(plot, where="bl")
ggplot2
character location of the scale. Can be:
"tl" - top left
"tr" - top right
"bl" - bottom left (default)
"br" - bottom right
Object ggplot2
# NOT RUN { library(GADMTools) data("Corsica") plotmap(Corsica) %>% gadm_showScale() # }
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