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.
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