White space in maps library
Thanks, Frede, now the png looks good. I was playing with those dimensions with someone else, but we were setting both width and height. I appreciate your help. Thanks, Brian
Frede Aakmann T?gersen wrote:
Well, it has something to do with with the dimensions of the png. The default height and width is 480 pixels.
Try
png("test.png", width = 960)
par(mar=c(5,5,0,0))
map('world', xlim=c(-125,-50),ylim=c(25,50))
map.axes()
dev.off()
where I have used the mar-settings of par() too. See ?par.
Med venlig hilsen
Frede Aakmann T?gersen
-----Oprindelig meddelelse-----
Fra: r-sig-geo-bounces at stat.math.ethz.ch
[mailto:r-sig-geo-bounces at stat.math.ethz.ch] P? vegne af
Brian J. Lopes
Sendt: 21. april 2008 01:41
Til: r-sig-geo at stat.math.ethz.ch
Emne: [R-sig-Geo] White space in maps library
Hey All,
I have a quick question regarding the maps package, and I'm
not sure what I'm missing.
Let's say I just want a plot of the US, by using the world
data and to save it as a png
library(maps)
png("test.png")
map('world', xlim=c(-125,-50),ylim=c(25,50))
map.axes()
dev.off()
The limits are actually important for me, so that's why I'm
not using 'usa'. As you can see by looking at the png file,
there is a lot of excess white space both above and below the
file, I guess this has to do with the dimensions of the png
file, but setting the dimensions in the
png() function doesn't seem to help the matter.
Any advice on how to deal with this?
TIA,
Brian
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