[R] How do we omit the coastline using map?

[Denham Robert]

Patrick,
        if you look at the code for map, you will see that it uses a
call to polygon if FILL=TRUE: ie

 if (fill) 
        polygon(coord, col = color, ...)
 else lines(coord, col = color, type = type, ...)

You can supply extra arguments to polygon when you call map, eg:

map("nz","North.Island",fill=T,col="Wheat",border=0)

see help(polygon) for info on setting borders.

Robert

-----Original Message-----
From: Patrick Connolly [mailto:p.connolly at hortresearch.co.nz]
Sent: Tuesday, 30 July 2002 9:58 AM
To: R-help
Subject: [R] How do we omit the coastline using map?


I've been able to do most things I'd like to using the map package,
but I can't figure out how to fill a region without drawing a black
outline.  I can draw the outline in a specified colour, but as soon as
I set fill to TRUE, I get a black outline in addition.

My map has a lot of activity on the coastline so I don't want a black
line obscuring what I do there.  A pale colour to indicate land mass
is what I want to do.

best

-- 
Patrick Connolly
HortResearch
Mt Albert
Auckland
New Zealand 
Ph: +64-9 815 4200 x 7188
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I have the world`s largest collection of seashells. I keep it on all
the beaches of the world ... Perhaps you`ve seen it.  ---Steven Wright 
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