sf plot, key not showing correctly R

Question

I've been trying to plot a shapefile using sf package plot function but I get this:

(The shapefile can be found here: https://drive.google.com/open?id=1AKMP9i549xESStN-R59UUU80OmkXy1XM)

sf <- st_read('fisiografia_cortado_disolve_gapis_des.shp')
plot(sf, lty = 0)

I can't display the key correctly. I've been playing with par function but I think I'm doing all wrong because nothing changes.

I tried:

par(mar = c(10,10,10,20))

and many other combinations (c(10,5,5,20), c(10,10,10,10)) but I think sf plots doesn't rely on par settings (forgive if I'm wrong).

I also tried to use the key.size attribute within the plot function but it only changes the width of the key (see the left image below) and if it is too big only the key is shown (right).

plot(sf, lty = 0, key.size = 1)
plot(sf, lty = 0, key.size = 10)

I'd like to show correctly the key and, if possible, change its size.

Anyone has gone through the same problem?

Including a [minimal reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) in your question will increase your chances of getting an answer. — Samuel, Nov 03 '17 at 00:25

jsta · Accepted Answer · 2017-11-03T01:27:41.523

2

You can adjust the oma parameter of par to show the full label.

library(sf)

dt <- st_read(system.file("shape/nc.shp", package="sf"))

par(oma = c(0, 0, 0, 4))
plot(dt["NAME"])

You can also use key.size as long as you give it a unit with lcm(). See https://r-spatial.github.io/sf/articles/sf5.html#color-keys

par(oma = c(0, 0, 0, 0)) # just resetting par
plot(dt["NAME"], key.size = lcm(4))

edited Nov 03 '17 at 01:27

answered Nov 03 '17 at 01:08

jsta

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You're right, I should have read all the `par` help vignette. Btw, do you know how does the `key.size` attribute should be used? – noriega Nov 03 '17 at 01:14
1

Added more detail on `key.size`. – jsta Nov 03 '17 at 01:29

sf plot, key not showing correctly R

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