[rrd-users] Re: coloring graphs red when the input his a border

David Sawyer david.sawyer at uk.mckhboc.com
Fri Apr 20 15:44:03 MEST 2001

Alex did a tutorial and used car speeds as an example


below is his code to produce what you want (maybe), it shouldn't be too hard
to change the code to match your needs.

rrdtool graph speed4.gif
      --start 920804400 --end 920808000
      --vertical-label km/h
      HRULE:100#0000FF:"Maximum allowed"
      AREA:good#00FF00:"Good speed"
      AREA:fast#550000:"Too fast"
      STACK:over#FF0000:"Over speed"

> -----Original Message-----
> From:	Serge Maandag [SMTP:serge.maandag at staff.zeelandnet.nl]
> Sent:	Friday, April 20, 2001 2:05 PM
> To:	rrd-users at list.ee.ethz.ch
> Subject:	[rrd-users] coloring graphs  red when the input his a border
> question:
> When graphing my data I want to define a threshold. If the value
> crosses that threshold, I want it to turn red.
> Say I wanted to graph data that has a threshold of 10. I would like the
> line to be green if it's under 0 and red if it's over 10. I defined
> this:
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