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Re: how to control contour label position ?
- Subject: Re: how to control contour label position ?
- From: davidf(at)dfanning.com (David Fanning)
- Date: Fri, 29 Sep 2000 13:16:31 -0600
- Newsgroups: comp.lang.idl-pvwave
- Organization: Fanning Software Consulting
- References: <firstname.lastname@example.org>
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:21586
G. Vetoulis (email@example.com) writes:
> I am generating contour plots and I am using the "levels" and "c_annotation"
> parameters. However because I need to superimpose other objects over the
> contour plot, I need to move the labels from where IDL is placing them.
> A better description would be to "slide" them along the contour, to places
> where they will not conflict with the other elements in the plot.
> I am not asking for an automatic way, but I would imagine there might be
> a variable that measures length along a contour. For that matter, how
> does IDL decide where to place each label on its contour?
No one is sure how IDL decides where to place the
label. But this much is clear: we have no access to
the information and no control over how it is done. :-(
It might be better to slip the contour lines back onto
your plot *after* you placed the other objects. (You can
do this with the OVERPLOT keyword.)
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: firstname.lastname@example.org
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155