Thanks to all who responded - it looks like Alan's suggestion of gd is probably what I need.
rrdtool looked interesting, but the home is pretty much all xAP/xPL stuff, not least because the HomeVision connector was the first GPL application I ever released :-) Time was (about 2002) when I logged every telemetry event in the house (temp changes, lights on-off, occupancy sensors, etc) for about 2 months into a MySQL database - trouble was, 1: I couldn't work out what to do with the data set, and 2: we had kids :-) I still have a ludicrous amount of home automation hardware sitting on a shelf in the study awaiting the day when I'll get the fabled Round Tuit and set it up in a child-friendly way. Too many interesting projects, not enough time..... GD - good call, though. Seems to be what I need. M. Alan Pope wrote: > Hi Mark, > > On Fri, 2007-06-22 at 18:36 +0100, Mark Harrison wrote: > >> What I'm after is a free (in both senses) "thing" (library, probably), >> that can grab some data, and turn it into a pretty-looking bar graph. I >> don't mind particularly how it outputs the graph provided it's something >> that can display within Firefox, so something that could dynamically >> build a PNG or a Flash, or whatever really. >> >> > > gd is the library in php that can generate pretty much any graphical > output. > > http://www.partdigital.com/tutorials/bar-chart/ > http://www.weberdev.com/get_example-4619.html > > Also as previously mentioned rrdtool is often used to generate graphs. > An example of rrdtool can be seen if you ever view cacti performance and > other resource usage graphs. You can see an example on the front page of > the cacti site. > > http://cacti.net/ > > Cheers, > Al. > -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.kubuntu.org/UKTeam/