[rrd-users] Can this kind of chart be drawn with RRDTool ?

[Koaps]

True true.... :)

I just did the color one cause Jean-Yves had made the graphs.

One thing I love is having semi transparent graphs for area graphs of multiple values, you can make some really pretty graphs, especially with a black canvas.

I was doing that for my SAN load testing scripts.

-k

--- On Fri, 2/19/10, Tobias Oetiker <tobi at oetiker.ch> wrote:

> From: Tobias Oetiker <tobi at oetiker.ch>
> Subject: Re: [rrd-users] Can this kind of chart be drawn with RRDTool ?
> To: "Koaps" <koaps at yahoo.com>
> Cc: "Jean-Yves Avenard" <jyavenard at gmail.com>, rrd-users at lists.oetiker.ch
> Date: Friday, February 19, 2010, 11:23 PM
> Yesterday Koaps wrote:
> 
> > Hehe,
> >
> > I'm making progress too...
> >
> > You had to get the idea stuck in my head...
> >
> > https://test.null.bz/test9.php
> > https://test.null.bz/test9.phps
> >
> > I looked up your domain to get a location, so the
> script will figure out sunset and sunrise for your Lat. Long
> and then try to make a gradient.
> >
> > Still working on getting the offsets right, but it's
> getting closer.
> >
> > I then take the PNG made by rrdtool and convert the
> blue background to transparent and overlay it over my
> image.
> >
> > This is all done by the server, so it will regenerate
> everything when the RRD image changes.
> >
> > If I get some more time I will play with it some more,
> GD is nice.
> 
> note that rrdtool can do transparent 'colors' natively ...
> just use
> the fourth component of the color expression to generate
> transparency ...
> 
> #rrggbbaa  or #rgba
> 
> cheers
> tobi
> 
> >
> > -k
> >
> >
> > --- On Fri, 2/19/10, Jean-Yves Avenard <jyavenard at gmail.com>
> wrote:
> >
> > > From: Jean-Yves Avenard <jyavenard at gmail.com>
> > > Subject: Re: [rrd-users] Can this kind of chart
> be drawn with RRDTool ?
> > > To: "A Darren Dunham" <ddunham at taos.com>
> > > Cc: rrd-users at lists.oetiker.ch
> > > Date: Friday, February 19, 2010, 7:20 AM
> > > Hi
> > >
> > > Making progress on the matter.
> > >
> > > http://htpc.avenard.org/power/?small=1&graph=1&view=day&date=19/02/2010&hour=23&minute=59&plot=total,ext
> > >
> > > I'm trying to draw a blue area between sunrise
> and
> > > sunset...
> > >
> > >                
> > >                
> > >   "VRULE:$sunrise#32348e",
> > >                
> > >                
> > >   "VRULE:$sunset#32348e",
> > >                
> > >                
> > >   "VRULE:$sunnoon#000000",
> > >                
> > >                
> > >   "VRULE:$dawn#272727",
> > >                
> > >                
> > >   "VRULE:$dusk#272727",
> > >                
> > >                
> > >   "DEF:tt=blah.rrd:total:AVERAGE",
> > >
> > >
> "CDEF:day=tt,POP,UNKN,INF,TIME,$sunrise,$sunset,LIMIT,UN,IF",
> > >                
> > >                
> > >   "AREA:day#32348e"
> > >
> > > I draw 5 vertical lines, at dawn, sunrise,
> sunset, dusk and
> > > solar noon
> > > (to fullfill my curiosity)..
> > >
> > > As I can't create a CDEF from a RpN expression
> without
> > > using a
> > > reference to a DEF or CDEF, so I read a dummy RRD
> that I
> > > know as data
> > > continously. In the RPN expression I remove the
> date, and
> > > check if
> > > TIME is between sunrise and sunset. If yes, I
> push INF back
> > > on the
> > > stack ; which should plot the whole screen.
> > >
> > > But it doesn't :)
> > >
> > > What did I miss?
> > >
> > > It's pretty much:
> > > IF (TIME > sunrise && TIME <
> sunset) then
> > > plot INF else plot UNKN
> > >
> > >
> > > Thanks
> > >
> > > _______________________________________________
> > > rrd-users mailing list
> > > rrd-users at lists.oetiker.ch
> > > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
> > >
> >
> >
> >
> >
> > _______________________________________________
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> > rrd-users at lists.oetiker.ch
> > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
> >
> >
> 
> -- 
> Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten,
> Switzerland
> http://it.oetiker.ch tobi at oetiker.ch
> ++41 62 775 9902 / sb: -9900