I did a bit of digging/googling/reading between the lines when I was putting together an extension to produce a loop based gauge-data.txt for the SteelSeries gauges and worked out the format of the windrose 'field' (realtime.txt and gauge-data.txt use the same Cumulus windrose web tag). From memory it is simply the sum of the wind speeds for each of the 16 cardinal/intercardinal/secondary intercardinal directions over a period of time. A fairly straightforward sql query and a bit of processing of the query results gives the required data. Units are irrelevant since all you are concerned with is the relative values. My implementation is in def calc_windrose() in rtgd.py (https://github.com/gjr80/weewx-realtime_gauge-data/blob/master/bin/user/rtgd.py)
Don't see why a simple template could not be used for realmore.txt, there is nothing complex about it and one of the linked docs says 'does not require an update in realtime, just every few minutes' so a cheetah template would do fine. CumulusWebTagsEngine and CumulusGenerator, maybe next months job, unless you have one ready to go Matthew? Gary -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
