Hi there. Those are changes I've had for a long time on my local rrd copy. I remember submitted them a long time ago on the RRD's trac, but it seems to have got lost in the noise...
For 1.4 branch: https://github.com/oetiker/rrdtool-1.x/pull/375 For master: https://github.com/oetiker/rrdtool-1.x/pull/376 This add a --utc option to rrdgraph. It allows to draw a graph as if the current timezone was UTC, ignoring the current environment timezone setting (e.g. setting TZ=UTC). The reason I added this option is because I wanted to draw graph from midnight to midnight in my local timezone, something that would otherwise require lots of special case handling, calculating your timezone offset at the time you want to read the data etc... And it would never look a nice as drawing something from midnight to midnight. Also, changing the TZ environment variable isn't always an option, especially when running within a web server as it would mess up other applications running... Example of the usage is to render that type of graph: http://htpc.avenard.org/power/usage this shows me power consumption for the day as well as my electrical production and calculate the energy exported in a netfeed system. When I feed the rrd database with my value, I enter the timestamp as if I was in UTC. So I only have to worry about timezone calculation at the time of feeding the data. Thanks for reading Jean-Yves _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
