Again, I wouldn't "convert to miles." Instead, convert to whatever unit system the record is using. Let WeeWX take care of the rest.
On Thu, Jul 2, 2020 at 1:30 PM Pat <p...@obrienphoto.net> wrote: > Excellent! Now to update the extension and convert all my archive records > to miles instead of km. Always learning. Thanks again! > > On Thursday, July 2, 2020 at 3:27:49 PM UTC-4, Tom Keffer wrote: >> >> usUnits == 1 means that the packet uses the US Customary unit system. So, >> yes, you would have to change to miles. But, good extensions assume >> nothing. The function weewx.units.convertStd is a convenient way to ensure >> the correct units. For example, if "val" holds the distance in km, >> something like this would work (NOT TESTED): >> >> record['lightning_distance'] = weewx.units.convertStd( (val, 'km', >> 'group_distance'), record['usUnits']) >> >> -tk >> >> On Thu, Jul 2, 2020 at 8:16 AM Pat <p...@obrienphoto.net> wrote: >> >>> Got it, running weewxd, I see the usUnits: 1, so I assume I have a >>> mismatch with this particular field? >>> >>> >>> On Thursday, July 2, 2020 at 11:12:16 AM UTC-4, Tom Keffer wrote: >>>> >>>> Then you need to check the unit system of the incoming packet (don't >>>> assume it's in US), then change lightning_distance into the appropriate >>>> unit for that unit system. >>>> >>>> The goal is for the units within a packet to be in a consistent unit >>>> system. Doesn't matter what that unit system is --- just that all types >>>> within the packet are in that system. >>>> >>>> -tk >>>> >>>> On Thu, Jul 2, 2020 at 7:59 AM Pat <p...@obrienphoto.net> wrote: >>>> >>>>> Thanks. Currently I'm just putting it into the loop as the raw data >>>>> which is in km. Sounds like I need to convert it to miles so it's >>>>> consistent. >>>>> >>>>> On Thursday, July 2, 2020 at 8:49:12 AM UTC-4, Tom Keffer wrote: >>>>>> >>>>>> Just make sure its units are consistent with whatever packet or >>>>>> record you put it in. The engine will take care of the rest. >>>>>> >>>>>> Details depend on whether you are adding lightning_distance to an >>>>>> existing packet, or if you are creating a packet. >>>>>> >>>>>> -tk >>>>>> >>>>>> On Thu, Jul 2, 2020 at 5:42 AM Pat <p...@obrienphoto.net> wrote: >>>>>> >>>>>>> I'm working on migrating over to the extended schema and have a >>>>>>> question on the lightning_distance column. My sensor outputs as km, but >>>>>>> should I save this observation as miles in the database if my usUnits >>>>>>> are 1? >>>>>>> >>>>>>> Just looking for confirmation since I didn't see anything in the >>>>>>> docs. >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "weewx-development" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to weewx-de...@googlegroups.com. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/weewx-development/0d8b6153-6f83-49d2-9be3-46a12cec21b1o%40googlegroups.com >>>>>>> <https://groups.google.com/d/msgid/weewx-development/0d8b6153-6f83-49d2-9be3-46a12cec21b1o%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "weewx-development" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to weewx-de...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/weewx-development/98985075-bab7-4c73-8598-3cc7c2b64d0co%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/weewx-development/98985075-bab7-4c73-8598-3cc7c2b64d0co%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "weewx-development" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to weewx-de...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/weewx-development/770c70d5-1168-42cf-b4a6-1b28e0664689o%40googlegroups.com >>> <https://groups.google.com/d/msgid/weewx-development/770c70d5-1168-42cf-b4a6-1b28e0664689o%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "weewx-development" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-development+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-development/36078a3e-e170-4431-ba3a-fee7c83ca494o%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-development/36078a3e-e170-4431-ba3a-fee7c83ca494o%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-development" group. 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