tmap test

Map Roman Amphitheaters

library(cawd) # see http://github.com/sfsheath/cawd
library(tmap)

# load
data(Europe)
data(rivers)

 tm_shape(awmc.roman.empire.200.sp) +
      tm_fill(col = "red", alpha = .5) + 
  tm_shape(Europe) + tm_borders(alpha = .3) +
  tm_shape(rivers) + tm_lines("dodgerblue3")  + 
  tm_shape(ramphs.sp) + tm_bubbles(size = .1)