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Re: overlaying arrow plots [message #51001 is a reply to message #50998]

Wed, 01 November 2006 12:34

news.verizon.net
Messages: 47
Registered: August 2003

Member

metachronist wrote:
> Dear All,
>
> I started using IDL more only recently. So please be kind :-) I have
> made arrow plots from a 1D timeseries using one_arrow, which in turn
> calls one_ray. I want to be able to overlay these vector plots on maps
> and regular x-y plots of the timeseries/other derived quantities.

one_arrow and one_ray are old routines from the IDL Astronomy Library
and are not part of the standard IDL distribution. They only
accepted device coordinates, so you had to be careful to convert both
the arrow position and length to device coordinates. If you just
want to draw an arrow without annotation, then you might have better
luck with the standard IDL routine ARROW, which accepts /DATA and
/NORMAL keywords.

I have now updated one_arrow.pro so that it accepts both /DATA and
/NORMAL keywords (at http://idlastro.gsfc.nasa.gov/ftp/pro/misc/)

--Wayne

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[Message index]

		Re: overlaying arrow plots By: rkombiyil on Wed, 01 November 2006 21:49
		Re: overlaying arrow plots By: news.verizon.net on Wed, 01 November 2006 12:34
		Re: overlaying arrow plots By: David Fanning on Wed, 01 November 2006 06:00

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