You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
3.3 KiB
Python
135 lines
3.3 KiB
Python
"""
|
|
Modul zum Umrechnen der US Einheiten aus Weewx in das Metrische System
|
|
Version 0.1
|
|
"""
|
|
|
|
import math
|
|
from typing import Optional, Union
|
|
|
|
|
|
def temperaturumrechner(fahrenheit: Optional[Union[int, float]]) -> Optional[float]:
|
|
"""
|
|
Umrechnung von Fahrenheit in Celsius
|
|
:param fahrenheit: int, float or None
|
|
:return: float or None
|
|
"""
|
|
if isinstance(fahrenheit, (int, float)):
|
|
celsius = (fahrenheit - 32) / 1.8
|
|
celsius = round(celsius, 2)
|
|
return celsius
|
|
else:
|
|
return None
|
|
|
|
|
|
def druckumrechner(inHG):
|
|
"""
|
|
Umwandlung von inHG in mBar
|
|
:param inHG: int, float or None
|
|
:return: float or None
|
|
"""
|
|
if isinstance(inHG, (int, float)):
|
|
mbar = inHG * 33.86389
|
|
mbar = round(mbar, 2)
|
|
return mbar
|
|
else:
|
|
return None
|
|
|
|
|
|
def himmelsrichtungwandler(grad):
|
|
"""
|
|
Umwandlung von Grad in Himmelsrichtung
|
|
von (>) bis (<=)
|
|
N 348,75 11,25
|
|
NNO 11,25 33,75
|
|
NO 33,75 56,25
|
|
ONO 56,25 78,75
|
|
O 78,75 101,25
|
|
OSO 101,25 123,75
|
|
SO 123,75 146,25
|
|
SSO 146,25 168,75
|
|
S 168,75 191,25
|
|
SSW 191,25 213,75
|
|
SW 213,75 236,25
|
|
WSW 236,25 258,75
|
|
W 258,75 281,25
|
|
WNW 281,25 303,75
|
|
NW 303,75 326,25
|
|
NNW 326,25 348,75
|
|
:param grad: float or None
|
|
:return: String or None
|
|
"""
|
|
if isinstance(grad, (int, float)):
|
|
richtung = ("N", "NNO", "NO", "ONO", "O", "OSO", "SO", "SSO", "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW",
|
|
"N")
|
|
return richtung[int((int(grad / (360 / 32)) + 1) / 2)]
|
|
else:
|
|
return None
|
|
|
|
|
|
def windumrechner(wind):
|
|
"""
|
|
Umwandlung von milen pro std in km/h
|
|
:param wind: Int, float or None
|
|
:return: Float or None
|
|
"""
|
|
if isinstance(wind, (int, float)):
|
|
kmh = wind * 1.609346
|
|
kmh = round(kmh, 2)
|
|
return kmh
|
|
else:
|
|
return None
|
|
|
|
|
|
def regen_rate(wert):
|
|
"""
|
|
Umwandlung von Inch/h in mm/h
|
|
:param wert: Int, float or None
|
|
:return: Float or None
|
|
"""
|
|
if isinstance(wert, (int, float)):
|
|
regenrate = wert * 25.4
|
|
regenrate = round(regenrate, 2)
|
|
return regenrate
|
|
else:
|
|
return None
|
|
|
|
|
|
def regen_menge(wert):
|
|
"""
|
|
Umwandlung von Inch in mm
|
|
:param wert: Int, float or None
|
|
:return: Float or None
|
|
"""
|
|
if isinstance(wert, (int, float)):
|
|
regenmenge = wert * 25.4
|
|
regenmenge = round(regenmenge, 2)
|
|
return regenmenge
|
|
else:
|
|
return None
|
|
|
|
|
|
def magnus_formel_wasser(temperatur):
|
|
sattdampfdruck_wasser = 611.2 * math.e ** ((17.62 * temperatur) / (243.12 + temperatur))
|
|
return sattdampfdruck_wasser
|
|
|
|
|
|
def wasserdampf_partialdruck_berechnen(relative_feuchte, sattdampfdruck_wasser):
|
|
wasserdampf_partialdruck = (relative_feuchte/100) * sattdampfdruck_wasser
|
|
return wasserdampf_partialdruck
|
|
|
|
|
|
def celsius_in_kelvin(temperatur):
|
|
kelvin = temperatur + 273.15
|
|
return kelvin
|
|
|
|
|
|
def absolute_luftfeuchtigkeit(temperatur, relative_feuchte):
|
|
"""g/m³"""
|
|
if temperatur is None or relative_feuchte is None:
|
|
return
|
|
sattdampfdruck_wasser = magnus_formel_wasser(temperatur)
|
|
wasserdampf_partialdruck = wasserdampf_partialdruck_berechnen(relative_feuchte, sattdampfdruck_wasser)
|
|
kelvin = celsius_in_kelvin(temperatur)
|
|
abs_feuchte = round((wasserdampf_partialdruck / (461.51 * kelvin)) * 1000, 3)
|
|
return abs_feuchte
|