Re: How to plot outline of overlapping circles

"J.J. Green" <[email protected]>
Newsgroups gmane.comp.gis.gmt.user
Message-ID <[email protected]>
Hi Kristof,

> Currently I'm plotting the coverage with the build in ellipse symbol
> (-SE) getting overlapping circles (see output.jpg; the thick white
> lines). I'd like to reduce the circles to the part crudely highlighted
> in red in desired_result.jpg representing the outer boundary of the
> covered area and get rid of any parts laying inside the covered area.

One way would be to plot circles filled with red, then the same circles
filled with the background colour but with a smaller diameter -- the
difference in diameter giving the line thickness of the outer boundary.
Of course 'filling with the background colour' means that this will need
to a a 'bottom layer' of the plot, and it looks to me that this is not
what your map needs.

Jim
-- 
J.J. Green,  Seaview Sensing Ltd.,
http://seaviewsensing.com

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