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ga_polyline
2002 Aug 06
1
polygon() draws non-transparent border, erase.screen draws non-transparent border (PR#1881)
# polygon ignores requests to have its border transparent, look at
par(bg="transparent")
plot(c(0, 3), 0:1)
polygon(c(0, 1, 1, 0), c(0, 0, 1, 1), border=NA, col = 0)
polygon(c(1, 2, 2, 1), c(0, 0, 1, 1), border="transparent", col = 0)
polygon(c(2, 3, 3, 2), c(0, 0, 1, 1), border=0, col = 0)
# a quick fix for erase.screen() is the following
erase.screen <-
function (n =