> On Dec 26, 2014, at 3:26 PM, Roy Mendelssohn - NOAA Federal > <roy.mendelss...@noaa.gov> wrote: > > HI All: > > Okay I am feeling particular brain dead today. i have the following map > created so far using ggmap: > >> library(ggmap) >> myLocation <- c(-178, -28, -72, 48) >> myMap <- get_map(location=myLocation, source="google", maptype="satellite", >> crop=FALSE) >>
All if get is a matrix. No map. > > I want to color in some lat-lon 5 degree boxes based on some criterion, and > it look like this could be done use geom_polygon if I can figure out how to > get the data in the format required for geom_polygon. To simplify the > problem, suppose i have a bounding box: > > subbox<-c(-130, 20, -125, 25) > That looks more like a specification for geom.rect than for geom_polygon. > and I want to color that box red on myMap defined above. To put this in > context, I actually have 360 squares which have been clustered by some > criteria, and I want to color them all based on the cluster number of the > box. but if I can figure out how to do the simple problem above I can extend > it to the more general problem. > > Basically the question is how can I get that simple box information into the > format required for eom_polygon. If it were used for eom_polygon I would imagine you need to put it in the form pairs (x,y) subbox<-list(x=c(-130,-125,-125,-130,-130),y=c( 20,20,25, 25,20)) Just a guess mind, you. — David. > > Thanks for any help. > > -Roy > > > ********************** > "The contents of this message do not reflect any position of the U.S. > Government or NOAA." > ********************** > Roy Mendelssohn > Supervisory Operations Research Analyst > NOAA/NMFS ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
