The ggmap package
(http://journal.r-project.org/archive/2013-1/kahle-wickham.pdf) is
also quite good.
Best,
Ista
On Fri, Jan 31, 2014 at 6:23 AM, Mohammed Ouassou
<mohammed.ouas...@statkart.no> wrote:
> library(RgoogleMaps); # download a static map from the Google server
> library(geomapdata); # Topographic and Geologic Mapping
> lbrary(PBSmapping); # Draw Maps and Implement Other GIS Procedures
>
> STEP1:
> my_map = GetMap(center=my_center, zoom =my_zoom ,
> destfile=my_out_file ,maptype = "mapmaker-hybrid",
> size=c(640,640));
>
> ?GetMap for more info
>
> STEP2: You can add text
> =========================
> tmp = TextOnStaticMap(my_map,lat = my_markers_1[,"lat"],
> lon = my_markers_1[,"lon"],
> labels=as.character(site_names),
> col="red", cex=1.1, add=F)
>
> # STEP 3: you can add points
> tmp = PlotOnStaticMap(my_map,lat = my_markers[,"lat"],
> lon = my_markers[,"lon"], cex=2.,pch=10,col=c("black"),
> add=T)
> add=T is importent
>
> # STEP 4: You can add lines
> tmp = PlotOnStaticMap(my_map,lat = my_markers_2[,"lat"], lon =
> my_markers_2[,"lon"], col=c("blueviolet"), add=T,
> FUN = lines, lwd = 3);
>
>
> I hope will help !
>
>
> Mohammed
>
>
>
>
> On Fri, 2014-01-31 at 09:58 +0000, 李德磊 wrote:
>> Hello everyone,
>> I have no idea how to plotting points over a map using R, in which the
>> colors of the points stand for the points' value. I'd like to get a map as
>> shown in attachment picture which was plotted using matlab. Does anyone know
>> how to do it using R? Thank you very much for your help in advance.
>> Kind regards,Dli
>> ______________________________________________ R-help@r-project.org mailing
>> list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting
>> guide http://www.R-project.org/posting-guide.html and provide commented,
>> minimal, self-contained, reproducible code.
>
> ______________________________________________
> R-help@r-project.org mailing list
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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