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Re: cyclic colour tables? [message #32169]

Mon, 23 September 2002 08:49

Manish
Messages: 20
Registered: April 2001

Junior Member

Cheers David,
This may be a bit of a daft question, but how do i get around the limit of
60 elements in the LEVELS keyword for contour? I assume if i could set this
high enough (ie a lot greater than 60) then i would have the resolution i
need and the colours would cycle automatically (through C_COLORS right?),
but it won't let me go above 60... :-(

I fear i am but a blind minnow in the ocean that is IDL, and your help is
very much appreciated!

Cheers,

Manish

--

"David Fanning" <david@dfanning.com> wrote in message
news:MPG.17f8dd98b727081a9899ba@news.frii.com...
> M (mrmanish@bigfoot.com) writes:
>
>> I have a contour map (of solar radiation, longitude-latitude type) and
i've
>> set up the routine to give a nice colour contour plot... I just wanted
to
>> know if it is possible to pick out small variations using a colour
table -
>> the maximum (solar radiation) value is around 50, but i would like to
>> highlight areas where the variation is only around 2 % or less maybe....
>>
>> Is there a way to cycle colour tables, so that fine structure in the
contour
>> plot can be seen?
>
> If you are using a 24-bit graphics card you can pretty much
> do whatever you like with colors. The NOERASE keyword might
> also come in handy. :-)
>
> Cheers,
>
> David
>
> --
> David W. Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Phone: 970-221-0438, E-mail: david@dfanning.com
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
> Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Re: cyclic colour tables? By: Manish on Mon, 23 September 2002 08:49
		Re: cyclic colour tables? By: David Fanning on Mon, 23 September 2002 08:13
		Re: cyclic colour tables? By: James Kuyper on Mon, 23 September 2002 09:23
		Re: cyclic colour tables? By: David Fanning on Mon, 23 September 2002 09:02

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