PHP Class Horde_Service_Weather, horde

Author: Michael J Rubinsky ([email protected])

Public Methods

Method	Description
calculateDewPoint ( double $temperature, double $humidity ) : double	Calculate dewpoint from temperature and humidity This is only an approximation, there is no exact formula, this one here is called Magnus-Formula
calculateHumidity ( double $temperature, double $dewPoint ) : double	Calculate humidity from temperature and dewpoint This is only an approximation, there is no exact formula, this one here is called Magnus-Formula
calculateWindChill ( double $temperature, double $speed ) : double	Calculate windchill from temperature and windspeed.
convertDistance ( double $distance, string $from, string $to ) : double	Convert distance between m, km, ft and sm
convertPressure ( double $pressure, string $from, string $to ) : float	Convert pressure between in, hpa, mb, mm and atm
convertSpeed ( double $speed, string $from, string $to ) : double \| integer \| boolean	Convert speed between mph, kph, kt, mps, fps and bft
convertTemperature ( double $temperature, string $from, string $to ) : double	Convert temperature between f and c
degToDirection ( integer $degree ) : string	Utility function to return textual cardinal compass directions from degress.

Temperature has to be entered in deg C!

public static calculateDewPoint ( double $temperature, double $humidity ) : double
$temperature	double	Temperature in degrees C.
$humidity	double	Humidity.
return	double

Temperature and dewpoint have to be entered in deg C!

public static calculateHumidity ( double $temperature, double $dewPoint ) : double
$temperature	double	Temperature in degrees C.
$dewPoint	double	Dewpoint in degrees C.
return	double

Temperature has to be entered in deg F, speed in mph!

public static calculateWindChill ( double $temperature, double $speed ) : double
$temperature	double	The temperature in degrees F.
$speed	double	The wind speed in MPH.
return	double	The windchill factor.

Convert distance between m, km, ft and sm

public static convertDistance ( double $distance, string $from, string $to ) : double
$distance	double	The distance in $from units.
$from	string	The units to convert from.
$to	string	The units to convert to.
return	double

Convert pressure between in, hpa, mb, mm and atm

public static convertPressure ( double $pressure, string $from, string $to ) : float
$pressure	double	The pressure in $from units.
$from	string	Units converting from.
$to	string	Units converting to.
return	float	The converted pressure

Function will return 'false' when trying to convert from Beaufort, as it is a scale and not a true measurement

public static convertSpeed ( double $speed, string $from, string $to ) : double \| integer \| boolean
$speed	double	The speed in $from units.
$from	string	The units to convert from.
$to	string	The units to convert to.
return	double \| integer \| boolean

Convert temperature between f and c

public static convertTemperature ( double $temperature, string $from, string $to ) : double
$temperature	double	The temperature in $from units.
$from	string	Units to convert from.
$to	string	Units to convert to.
return	double

Utility function to return textual cardinal compass directions from degress.

Since: 2.3.0

public static degToDirection ( integer $degree ) : string
$degree	integer	The degree direction (0 - 360).
return	string	The cardinal direction.