[Xymon] Graph right-axis in Xymon

[Ralph Mitchell]

I just tried it on a random temperature graph, and it seems to work as two
lines:

    --right-axis
    10:-1000

That definitely put an axis on the right side of the graph.

To set it up as a single line in graphs.cfg, you'll need to do some work on
xymon-4.3.7/web/showgraph.c.  Starting at line 1068, you can see how other
options work, such as --title, height, width, upperlimit & lowerlimit.  I
think you'd need to add something to the gdef_t struct and some handling in
load_gdefs at line 314.  Dunno what else.

But that's just a wild guess...  :-)

Ralph Mitchell


On Thu, Jun 7, 2012 at 12:05 PM, SebA <spah at syntec.co.uk> wrote:

> Hi,
>
> Has anyone got a right-axis working in Xymon graphs?  The nearest info I
> can
> find is the post below, but I still can't get it to work seperating
> --right-axis from the parameter with a line-break.  Does anyone have a
> working example?  If I put --right-axis in the graphs.cfg, it just does not
> display it.
>
> Many thanks,
>
> SebA
>
>
> > -----Original Message-----
> > From: David Peters [mailto:davidp at electronf.com]
> > Sent: 06 December 2009 06:49
> > To: hobbit at hswn.dk
> > Subject: RE: [hobbit] Extra graph parameters.
> >
> > Hang on a sec....
> >
> > Debugging shows that there is a special case for -l and -u
> > where it picks up
> > two tokens on the same line (ie -l 0). The default case is that
> > hobbitgraph.c expects parameters to be separated on word per line:
> >
> > --right-axis
> > 10:-1000
> >
> > Or
> >
> > -c
> >
> > CANVAS:#449900
> >
> >
> > Hmmm that seems a bit counterintuitive as it is almost like
> > rrdtool but not
> > quite, which can be confusing.
> >
> >
> > -----Original Message-----
> > From: David Peters [mailto:davidp at electronf.com]
> > Sent: Sunday, 6 December 2009 5:11 PM
> > To: hobbit at hswn.dk
> > Subject: [hobbit] Extra graph parameters.
> >
> >
> > I thought you could just add extra rrdtool graph commandline
> > parameters to
> > the hobbitgraph file for a graph section and hey presto it
> > would use them.
> > This seems to work for some and not for others. (eg -e and -A work)
> >
> > It may be a more generic issue related to parameter
> > assumptions within the
> > code, but anyway, I added a some code to handle a couple of additional
> > directives in hobbitgraph.cfg. (RSCALE, RFORMAT and RLABEL -
> > in order to add
> > a different scale to the right hand y axis.)
> >
> > Should I look deeper into the code and see why --right-axis
> > scale:shift,
> > --right-axis-format and --right-axis-label seem to get
> > ignored if I add them
> > to hobbitgraph.cfg.
> >
> > Or should I just use the code that I now have that uses my
> > Hobbit specific
> > directives.
> >
> > Or am I missing something entirely altogether?
>
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