Your variable $rainacc is just a raw number. It's not the ValueHelper that
WeeWX normally traffics in, so suffixes such as .round() and .format()
won't work.
However, Python syntax will work. Try this:
$("%.2f" % $rainacc)
On Thu, Dec 19, 2024 at 5:21 AM 'Rory Gillies' via weewx-user <
[email protected]> wrote:
> Thanks for the help, I've got this running pretty well now, however I have
> an issue with formatting a variable. The WXSim developer has told me the
> expected rain value is an accumulator for the year. I created a $rainacc so
> the template code looks like this:
>
> #set $rainacc = $year.rain.sum.raw - $month.rain.sum.raw
> #for $record in $month.records
> #set $rainacc = $rainacc + $record.rain.raw
> $record.dateTime.format("%d/%m/%Y
> %H:%M"),$record.outTemp.format(add_label=False),$record.outHumidity.format(add_label=False),$record.dewpoint.format(add_label=False),$record.windSpeed.format(add_label=False),$record.windGust.format(add_label=False),$record.windDir.format(add_label=False),0,0,$record.barometer.format(add_label=False),$rainacc,0,0,0,0,0,0,$record.radiation.format(add_label=False),0
> #end for
>
> This works, however the output for rain is to 13 decimals:
> 1083.8000001314047. No matter what I do I can't seem to format it to 2
> decimal places. I have tried $rainacc.round(2)and $rainacc.format(%.2f)
> On Thursday, December 19, 2024 at 9:03:19 AM UTC Rory Gillies wrote:
>
>> Thanks Gary, that did the trick! Doesn't take long on my RPi 5 for 19
>> days in December:
>>
>> 2024-12-19T08:55:33.656223+00:00 weewx5 weewxd[1317867]: INFO
>> weewx.cheetahgenerator: Generated 1 files for report cumulus in 3.50 seconds
>>
>> Cheers,
>>
>> Rory
>> On Thursday, December 19, 2024 at 3:57:23 AM UTC gjr80 wrote:
>>
>>> So you want to build a file with potentially 8928 rows (31 days per
>>> month 288 records per day)?
>>>
>>> If so this should be able to be done solely in a Cheetah template using
>>> just a few lines of code by iterating over the archive records in the
>>> month. Something like (untested):
>>>
>>> #for $record in $month.records
>>> $record.dateTime,$record.outTemp.format(add_label=False),.....
>>> #end for
>>>
>>> Like I said untested and I haven't used record iterators for a long time
>>> but at worst a little finessing should get you there. One thing to note,
>>> report generation time will gradually increase as the month progresses
>>> peaking on the last record of the last day of the month.
>>>
>>> Gary
>>>
>>> On Thursday, 19 December 2024 at 05:55:37 UTC+10
>>> [email protected] wrote:
>>>
>>>> Hi, at first I thought this would be quite easy but I'm struggling a
>>>> bit. The background is I need a text file to import into WXSim using the
>>>> Cumulus %Y%mlog.txt format. I created a simple skin that generates the
>>>> %Y%mlog.txt each reporting cycle (5 minutes in my case), but is there a way
>>>> to append the next cycle to the existing file as a new line rather than
>>>> overwrite it?
>>>>
>>>> My skin.conf looks like this:
>>>>
>>>> [CheetahGenerator]
>>>> encoding = utf8
>>>>
>>>> [[ToDate]]
>>>> [[[text-data]]]
>>>> template = %Y%mlog.txt.tmpl
>>>>
>>>> [CopyGenerator]
>>>> copy_always = *.txt
>>>>
>>>> [Generators]
>>>> generator_list = weewx.cheetahgenerator.CheetahGenerator,
>>>> weewx.reportengine.CopyGenerator
>>>>
>>>> And the template:
>>>>
>>>> #encoding UTF-8
>>>> #errorCatcher Echo
>>>> ## +------------------------------------------------------+
>>>> ## | Cumulus Monthly Output Template |
>>>> ## +------------------------------------------------------+
>>>> ## | Produces a YYYYmmlog.txt output for import to WXSim |
>>>> ## +------------------------------------------------------+
>>>>
>>>>
>>>>
>>>> $current.dateTime,$current.outTemp.format(add_label=False),$current.outHumidity.format(add_label=False),$current.dewpoint.format(add_label=False),$current.windSpeed.format(add_label=False),$current.windGust.format(add_label=False),$current.windDir.format(add_label=False),,,$current.barometer.format(add_label=False),$day.rain.sum.format(add_label=False),,,,,,,$current.radiation.format(add_label=False),
>>>>
>>>> Which produces a text file called 202412log.txt:
>>>>
>>>> 18/12/24 19:40:00,6.3,82,3.4,10,37,266,,,982.8,15.4,,,,,,,0,
>>>>
>>>> WXSim can read this, however it only contains a single observation
>>>> period. I would like to append the data to the file until the month is
>>>> complete, then generate a new file for the next month. Any ideas? It will
>>>> likely need some Python which is not my strongpoint, although I can get
>>>> around it a bit...
>>>>
>>>> I'm running WeeWX 5.1 if it makes it easier. TIA
>>>>
>>> --
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