Hi, I've been using rrdtool to graph temps around my house for a couple of months now. I setup a CDEF that shows night vs. day based on sunrise and sunset temps. Its been working great however now that the below zero have arrived, I notice that the AREA does not cross the x-axis.
You can see what I mean here: http://ronin-tech.com/Content/pid=27.html The script I use to generate the graphs is here: http://ronin-tech.com/Content/pid=26.html#graphtemp The line that defines the CDEF used for night is: CDEF:night=LTIME,86400,%,$1,LT,INF,LTIME,86400,%,$2,GT,INF,UNKN,Basement,*,IF,IF \ Any idea how I can change this so that the night AREA covers both sides of the x-axis? Cheers, Paul
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