weerstation/Calculator.java

package weerstation; 

public class Calculator {
	
	// Luchtdruk in hPa
	// Malek&Tom
	public static double luchtdruk(short mval)
    {
        double luchtdruk = (mval / 1000f) * 33.86389;
        return luchtdruk;
    }
	
	// Temperatuur in graden Celcius
    // Malek&Tom
    public static double temperatuur(short mval)
    {
        double temperatuur = (((double)mval / 10) -32) / 1.8;
        return temperatuur;
    }
	
    // Relatieve luchtvochtigheid in %
    // Malek&Tom
    public static double luchtVochtigheid(short mval)
    {
        double luchtvochtigheid = mval;
        return luchtvochtigheid;
    }
    
    // Windsnelheid in m/s
	// Janco&Tim
	public static double windSnelheid(short mval)
	{
		double windSpeed = mval * 0.44704;
		return windSpeed;
	}
	
	// Windrichting in noord, oost, zuid en west. 
	// Kenneth&Daniël
    public static String windRichting(short mval)
    {
        String direction = "Error";
        
        if(mval < 12)
        {
            direction = "N";
        }
        else if(mval < 34)
        {
            direction = "NNO";
        }
        else if(mval < 57)
        {
            direction = "NO";
        }
        else if(mval < 79)
        {
            direction = "ONO";
        }
        else if(mval < 102)
        {
            direction = "O";
        }
        else if(mval < 124)
        {
            direction = "OZO";
        }
        else if(mval < 147)
        {
            direction = "ZO";
        }
        else if(mval < 169)
        {
            direction = "ZZO";
        }
        else if(mval < 192)
        {
            direction = "Z";
        }
        else if(mval < 214)
        {
            direction = "ZZW";
        }
        else if(mval < 237)
        {
            direction = "ZW";
        }
        else if(mval < 259)
        {
            direction = "WZW";
        }
        else if(mval < 282)
        {
            direction = "W";
        }
        else if(mval < 304)
        {
            direction = "WNW";
        }
        else if(mval < 327)
        {
            direction = "NW";
        }
        else if(mval < 349)
        {
            direction = "NNW";
        }
        else if(mval < 360)
        {
            direction = "N";
        }
        
        return direction;
    }
	
    // Regenmeter in mm
    // Kenneth&Daniël
    public static double regenmeter(short mval)
	{
    	double rainAmount = (double)mval*0.2;
    	return rainAmount;
	}
    
	// uvIndex in index    
    // Kenneth&Daniël
    public static double uvIndex(short mval)
    {
        double index = (double) mval/10;
        return index;
    }
    
    // BatterySpanning in Volt
    // Janco&Tim
    public static double batterySpanning(short mval){
		double voltage = (((double)mval * 300)/512)/100;
    	return voltage; 
	}
	
    // sunRise en Sunset in tijdformaat hh:mm
	// Janco&Tim
    public static String sunRise(short mval){
    	return sun(mval);
    }
    public static String sunSet(short mval){
    	return sun(mval);
    }
	private static String sun(short sunRaw){
		String tijd = "";
		for(int i = 0; i <= 3; i++){
			tijd = sunRaw % 10 + tijd;
			sunRaw /= 10;
			if(i == 1){				
				tijd = ":" + tijd;
			}
		}
		return tijd;
	}

    //windchill in graden Celcius
	//Janco en Keneth
    public static double windChill(short gradenFahrenheit, short mijlPerUur)
    {
        short windChill = (short) (35.74 + (0.6215*gradenFahrenheit) - 35.75*Math.pow(mijlPerUur, 0.16) + 0.4275*gradenFahrenheit*Math.pow(mijlPerUur, 0.16));
        return temperatuur(windChill);
    }
    
    //Heatindex in celcius
	//Tom met Malek
    public static double heatIndex(double luchtv, double t)
    {
        double heatindex = -42.379 + (2.04901523 * t) + (10.14333127 * luchtv) - (0.22475541 * t * luchtv) 
        - (6.83783 * Math.pow(10,-3) * Math.pow(t,2)) - (5.481717 * Math.pow(10,-2) * Math.pow(luchtv,2)) 
        + (1.22874 * Math.pow(10,-3) * Math.pow(t,2) * luchtv) + (8.5282 * Math.pow(10,-4) * t * Math.pow(luchtv,2)) 
        - (1.99 * Math.pow(10,-6) * Math.pow(t,2) * Math.pow(luchtv,2));
        
        return heatindex;
    }
    
    //Dauwpunt in Celcius
    //Daniel en Tim
    public static double dewPoint(double omgevingsTemp, short luchtVochtigheid)
    {
       double hm = luchtVochtigheid/100f;
       double dauwpunt = Math.pow( hm, (1/8f)) * (112 + 0.9*omgevingsTemp) + (0.1*omgevingsTemp) - 112;
       return dauwpunt;
    }
	
    public static double cloudHeight(double temp, short luchtVochtigheid ){
    	
    	double wolkhoogte = 125 * (temp-dewPoint(temp, luchtVochtigheid));
    	return wolkhoogte; 
	}    

}