[R] graphs superimposed on pictures?

David McArthur dmca at ucla.edu
Wed Apr 11 18:00:55 CEST 2007

Robert Biddle <robert_biddle <at> carleton.ca> writes:

> Hi:
> I am doing some work that involves plotting points of interest
> superimposed on photographs and maps. I can produce the plots fine in R, but 
so far
> I have had to do the superimposition externally, which makes it tedious to do 
exploratory work.
> I have looked to see if there is some capability to put a background picture 
on a plot window,
> but I have not found anything.
> Advice, anyone?
> Cheers
> Robert Biddle
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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.

In Windows, an easy solution is to use a transparency program (such as freeware 
available at http://www.martinutils.com/) and place R's plot directly over the 
target image.
--David McArthur
UCLA School of Medicine, Los Angeles, CA

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