| Re: circle plot symbol [message #20145 is a reply to message #20126] |
Fri, 19 May 2000 00:00  |
Craig Markwardt
Messages: 1869
Registered: November 1996
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Senior Member |
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refik@rsmas.miami.edu (Refik Orhun) writes:
> Hi Folks,
>
> First of all, you have quite an impressive news group.
> Well, I Have a simple question. How do I code a circle as a symbol in a
> plot ? All the symbols in my plots so far are squares, diamonds and
> triangles, i.e. codes 2, 3, 4, etc...
>
> Can anybody tell me the number or code for a "simple circle" to use
> in PSYM= ?
I don't think a circle symbol exists, but I'm sure I will be
corrected. You can use the following procedure to define a circle as
the "user" symbol, symbol 8. You call it either as plain "circsym" or
as "circsym, /filled" to get a filled circle. Then you can say,
"plot, ..., psym=8"
pro circsym, _EXTRA=extra
theta=findgen(26)*0.251327412
usersym, cos(theta), sin(theta), _EXTRA=extra
end
I believe somebody has a big library of these kinds of user-defined
symbols.
Good luck,
Craig
--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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