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Color Filled Contour Plots

Hi Folks,

I've been meaning to do this for some time now, but this
weekend I finally got around to writing up a couple of tips
concerning filled contour plots. The essential tip is this:
don't allow IDL to choose the contour intervals for you by
using the NLEVELS keyword if you want your filled contours
to look right. Instead, choose your own contour intervals
and apply them with the LEVELS keyword. 

You can find the details here:




David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155