[rrd-users] Color effect

[R Dicaire]

On Thu, Apr 17, 2008 at 9:39 AM, Caio Brentano <caiobrentano at gmail.com> wrote:
> I have a threshold value and when my data is about 85% of it, I need that
> the colour of my AREA graphs starts to turn red. I know how to do graphs
> that "changes" the colour. But this must depends on the value!

http://krogloth.de/alex/linux/grading.html
A variation on this will do it.

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