Thanks Ray
On Thu, Mar 12, 2009 at 11:01 PM, Dr. Alireza Zolfaghari <
ali.zolfagh...@gmail.com> wrote:
> Hi list,
> I have a real problem with plotting US state map. When I try to plot the
> northern state, there will be some blank space in the top of graph (see case
> 1 example), and when I plot southern states, there will be a blank space in
> the bottom of plot (see case 2). I spent almost 2 days to figure out a
> solution, but could not. Would you help me if you know what the problem is?
> Regards,
> Alireza
>
> #################################################
> #case 1
> library(maps)
> require("mapproj")
> longlatLimit<-c(-107,-93,40,52)
> par(plt=c(0,1,0,1),cex=1,cex.main=1) #Set plotting parameters
> #map(projection="azequalarea",
> type="n",xlim=longlatLimit[1:2],ylim=longlatLimit[3:4])
> map(projection="azequalarea",
> type="n",xlim=longlatLimit[1:2],ylim=longlatLimit[3:4])
> bound<-c(floor(longlatLimit[1]), ceiling(longlatLimit[2]),
> floor(longlatLimit[3]), ceiling(longlatLimit[4]))
> map.grid(lim=bound,col="light grey")
> #################################################
> #case 2
> library(maps)
> require("mapproj")
> longlatLimit<-c(-107,-93,25,37)
> par(plt=c(0,1,0,1),cex=1,cex.main=1) #Set plotting parameters
> #map(projection="azequalarea",
> type="n",xlim=longlatLimit[1:2],ylim=longlatLimit[3:4])
> map(projection="azequalarea",
> type="n",xlim=longlatLimit[1:2],ylim=longlatLimit[3:4])
> bound<-c(floor(longlatLimit[1]), ceiling(longlatLimit[2]),
> floor(longlatLimit[3]), ceiling(longlatLimit[4]))
> map.grid(lim=bound,col="light grey")
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