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Re: staying away from color indices 0, and 255? [message #47271 is a reply to message #47270]

Wed, 01 February 2006 11:46

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

savoie@nsidc.org writes:

> I understand that the 0th index gets changed often. But why is it a good
> reason to stay away from index 255?
>
> I ask, because I've always reserved the top 16 colors for myself and done
> scaling and loadct, etc, into the remaining locations, and before I rewrite
> that code, I thought I'd see how dire it's going to be.
>
> So can anyone enlighten me on this?

I don't know. I've been working with IDL for so long,
and I've developed so many "rules of thumb" I can't
even remember what they are all about anymore. :-(

I'm guessing that if you don't follow this one you
will probably, sooner or later, end up drawing white
on white in PostScript. It's beautiful, very chic,
but not good for that Nature article you had been
planning. :-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: staying away from color indices 0, and 255? By: Paul Van Delst[1] on Wed, 01 February 2006 12:18
		Re: staying away from color indices 0, and 255? By: Michael Wallace on Wed, 01 February 2006 12:12
		Re: staying away from color indices 0, and 255? By: David Fanning on Wed, 01 February 2006 11:46

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