Hi,
Sorry for questions but .Im a newbie
Don't worry, we all started like that, somewhere.
As you just want to display Apparent Temperature on a weewx generated page
that means we have a few options. You could write a Search List Extension
that calculates Apparent Temperature and would ultimately let you just use
something like $appTemp in you template to display Apparent Temperature
with all the unit conversion and formatting capabilities that weewx
provides. Secondly, you could embed some python in your template to do the
calculations through a few calls to the weewx 'API'. This means we can
still make use of the weewx unit conversion and formatting capabilities.
The third approach is to calculate out the Apparent Temperature formula in
some python code in the template but you would then need to manually format
your results. I will cover the second approach as it is probably the
simplest in to implement and still provides us with unit
conversion/formatting.
You could place the following code in your template somewhere before you
want to use the Apparent temperature tag:
#import math
#from weewx.wxformulas import apptempC
#from weewx.units import ValueHelper
#if $varExists('current.outTemp') and $current.outTemp.raw is not None and
$varExists('current.outHumidity') and $current.outHumidity.raw is not None
and $varExists('current.windSpeed') and $current.windSpeed.raw is not None
#set $Ta = $current.outTemp.degree_C.raw
#set $rh = $current.outHumidity.raw
#set $ws = $current.windSpeed.meter_per_second.raw
#set $appTemp_C = apptempC($Ta, $rh, $ws)
#set $appTemp = ValueHelper(($appTemp_C, "degree_C",
"group_temperature"))
#else
#set $appTemp = ValueHelper((None, "degree_C", "group_temperature"))
#end if
you could then use $appTemp to display Apparent Temperature with a units
label converted to the units you specified in your skin.conf.
$appTemp.degree_F would always display in F, $appTemp.formatted would
display the value without a label. You essentially have the freedom to use
all of the weewx unit conversion and formatting capabilities.
Gary
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