[rrd-users] Re: Graph Difficulty [long -- Sorry]

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Tue Nov 2 20:13:44 MET 1999

Owen DeLong wrote:
> I am graphing some temperature probes, and when I use a lower-limit
> of 55 degrees and make the graph rigid, I get a somewhat reasonable
> graph.  However, I'm hoping to get auto-ranging working.  Currently,
> the autorange feature works fine for the upper limit of the graph,
> but always selects zero (0) as the lower limit.  Since I live in
> the San Jose area, the outside temperature never gets that low, let
> alone the temperature inside my house.

I restored the database and tried it.  It seems that if the time "now"
is reached, it fails.  set '--end now-5h' and then the Y-axis will go
from 60 to 75, or use alt-autoscale for 65.5 to 72.5


It seems that this is a bug introduced in 1.0.4, I assume that when the
unknown value at the end is reached, im->minval is set to zero.
Couldn't find out where, sorry.  I do not have the 1.0.3 and 1.0.4 sources
available so I couldn't diff.

 / alex at slot.hollandcasino.nl                  alex at ergens.op.het.net \
| work                                                         private |
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