Re: [R] Drawing a circle on an existing graph.

From: John Kane <jrkrideau_at_yahoo.ca>
Date: Sat, 12 Mar 2011 06:28:55 -0800 (PST)


Is this of any use? http://tolstoy.newcastle.edu.au/R/help/06/04/25821.html

> From: Allan Kamau <kamauallan_at_gmail.com>
> Subject: [R] Drawing a circle on an existing graph.
> To: r-help@r-project.org
> Received: Saturday, March 12, 2011, 3:08 AM
> I would like to draw a circle on a
> graph I am plotting in R and use
> the current plot's coordinate system.
> The most basic functionality I am looking for is the
> ability to plot a
> circle on an already existing graph by simply providing the
> xy
> coordinates for it's centre and the radius.
>
> I am also looking for a way to obtain x,y values of a point
> (of a
> circle) by specifying only the origin x,y the angle and
> radius.
>
> Please point me so such a library and perhaps some simple
> one line code.
>
> Allan.
>
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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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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. Received on Sat 12 Mar 2011 - 14:38:09 GMT

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