To complete the trifecta b9 will (by default) map the GW1000 Absolute Pressure to WeeWX field pressure and the StdWXCalculate service can then be used to calculate WeeWX fields barometer and altimeter. GW1000 Relative Pressure will be mapped through (again by default) to WeeWX field relbarometer. As such it will be available for use by folks in reports via the $current.relbarometer tag but will essentially have no other affect unless folks include relbarometer in their db schema. Should anyone want to map GW1000 Relative Pressure to WeeWX field barometer or altimeter (or for that matter any other field) they can do so by adding an appropriate field map entry entry under [GW1000] in weewx.conf.
I think this gives us a practical and realistic default supported by precedent whilst giving users the ability to tailor the behaviour to suit their tastes. Gary On Friday, 31 July 2020 02:01:28 UTC+10, galfert wrote: > > I believe that this is exactly how Meteobridge also works. It just uses > Absolute. I think this is probably the best solution. > > On Thursday, July 30, 2020 at 8:22:46 AM UTC-4 gjr80 wrote: > >> Looking at the WeeWX fousb driver it actually discards Relative Pressure >> and uses Absolute Pressure as WeeWX field pressure. WeeWX fields barometer >> and altimeter are calculated (by WeeWX). The interceptor driver when >> processing Ecowitt format messages does the same, Relative Pressure is >> ignored. >> >>> >>>> -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/254cab65-52cf-46b9-8f60-37795176a928o%40googlegroups.com.
