float COZIR::HeatIndex(float temperature, float percentHumidity, bool isFahrenheit)
{
float hi, a1, a2;
if(!isFahrenheit) temperature = Fahrenheit();
hi = 0.5 * (temperature + 61.0 + ((temperature - 68.0) * 1.2) + (percentHumidity * 0.094));
a1 = ((13.0 - percentHumidity) * 0.25) * sqrt((17.0 - abs(temperature - 95.0)) * 0.0588);
a2 = ((percentHumidity - 85.0) * 0.1) * ((87.0 - temperature) * 0.2);
if(hi>= 80){
hi = -42.379+ (2.0490152 * temperature) +
(10.14333127 * percentHumidity) -
(0.22475541 * temperature * percentHumidity) -
(0.00683783 * temperature * temperature) -
(0.05481717 * percentHumidity * percentHumidity) +
(0.00122874 * temperature * temperature * percentHumidity) +
(0.00085282 * temperature * percentHumidity * percentHumidity) -
(0.00000199 * temperature * temperature * percentHumidity * percentHumidity);
//case1
if((percentHumidity < 13) && (temperature >= 80.0) && (temperature <= 112.0)) hi -= a1;
else if ((percentHumidity > 85) && (temperature >= 80.0) && (temperature <= 87.0)) hi += a2;
}
return isFahrenheit? hi : convertFtoC(hi);
}
//boolean isFahrenheit: True == Fahrenheit; False == Celcius
float DHT::computeHeatIndex(float temperature, float percentHumidity, bool isFahrenheit) {
// Using both Rothfusz and Steadman's equations
// http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml
float hi;
if (!isFahrenheit)
temperature = convertCtoF(temperature);
hi = 0.5 * (temperature + 61.0 + ((temperature - 68.0) * 1.2) + (percentHumidity * 0.094));
if (hi > 79) {
hi = -42.379 +
2.04901523 * temperature +
10.14333127 * percentHumidity +
-0.22475541 * temperature*percentHumidity +
-0.00683783 * pow(temperature, 2) +
-0.05481717 * pow(percentHumidity, 2) +
0.00122874 * pow(temperature, 2) * percentHumidity +
0.00085282 * temperature*pow(percentHumidity, 2) +
-0.00000199 * pow(temperature, 2) * pow(percentHumidity, 2);
if((percentHumidity < 13) && (temperature >= 80.0) && (temperature <= 112.0))
hi -= ((13.0 - percentHumidity) * 0.25) * sqrt((17.0 - abs(temperature - 95.0)) * 0.05882);
else if((percentHumidity > 85.0) && (temperature >= 80.0) && (temperature <= 87.0))
hi += ((percentHumidity - 85.0) * 0.1) * ((87.0 - temperature) * 0.2);
}
return isFahrenheit ? hi : convertFtoC(hi);
}
float DHT::computeHeatIndex(float temperature, float percentHumidity, bool isFahrenheit)
{
float heatIndex;
if (!isFahrenheit)
temperature = convertCtoF(temperature);
heatIndex = 0.5 * (temperature + 61.0 + ((temperature - 68.0) * 1.2) + (percentHumidity * 0.094));
if (heatIndex > 79)
{
heatIndex = -42.379 +
2.04901523 * temperature +
10.14333127 * percentHumidity +
-0.22475541 * temperature*percentHumidity +
-0.00683783 * pow(temperature, 2) +
-0.05481717 * pow(percentHumidity, 2) +
0.00122874 * pow(temperature, 2) * percentHumidity +
0.00085282 * temperature*pow(percentHumidity, 2) +
-0.00000199 * pow(temperature, 2) * pow(percentHumidity, 2);
if((percentHumidity < 13) && (temperature >= 80.0) && (temperature <= 112.0))
heatIndex -= ((13.0 - percentHumidity) * 0.25) * sqrt((17.0 - abs(temperature - 95.0)) * 0.05882);
else if((percentHumidity > 85.0) && (temperature >= 80.0) && (temperature <= 87.0))
heatIndex += ((percentHumidity - 85.0) * 0.1) * ((87.0 - temperature) * 0.2);
}
//boolean isFahrenheit: True == Fahrenheit; False == Celcius
return isFahrenheit ? heatIndex : convertFtoC(heatIndex);
}
int main()
{
int choixMenu, h, m, s; //ENTIERS
float tempC, tempF, distKM, distMI, volumeL, volumeG; //REELS
do //DEBUT DE LA BOUCLE REPETER
{
AfficherMenu();
printf("\nVotre choix ? ");
scanf("%d", &choixMenu);
printf("\n");
//STRUCTURE CONDITIONNELLE
switch (choixMenu)
{
case 1: // SI CHOIXMENU EST EGAL A 1 ALORS
printf("Saisir heure(s)\n");
scanf("%d", &h);
printf("Saisir minute(s)\n");
scanf("%d", &m);
printf("Saisir seconde(s)\n");
scanf("%d", &s);
printf("%d h, %d min, %d sec = %d secondes", h, m, s, convertHMStoS(h,m,s));
break; //ON SORT DU SWITCH
case 2:
printf("Saisir secondes\n");
scanf("%d", &s);
printf("%d secondes =", s);
//ON ENVOIE L'ADRESSE DE H M ET S
decoupeSecondes(&h, &m, &s);
printf(" %d heures et %d minutes et %d secondes", h, m, s);
break;
case 3:
printf("saisir la temperature en degre C\n");
scanf("%f", &tempC);
printf("%1.2f degre C = %1.2f degre F", tempC, convertCtoF(tempC));
break;
case 4:
printf("saisir la temperature en degre F\n");
scanf("%f",&tempF);
printf("%1.2f degre F = %1.2f degre C", tempF, convertFtoC(tempF));
break;
case 5:
printf("saisir une distance en km\n");
scanf("%f", &distKM);
printf("%1.2f km = %1.2f miles", distKM, convertKMtoMI(distKM));
break;
case 6:
printf("saisir une distance en milles\n");
scanf("%f", &distMI);
printf("%1.2f mi = %1.2f km",distMI, convertMItoKM(distMI));
break;
case 7:
printf("saisir un volume en litres\n");
scanf("%f", &volumeL);
printf("%1.2f L = %1.2f G", volumeL, convertLtoG(volumeL));
break;
case 8:
printf("saisir un volume en gallons\n");
scanf("%f", &volumeG);
printf("%1.2f G = %1.2f L", volumeG, convertGtoL(volumeG));
break;
case 9:
printf("Au revoir\n");
}
if (choixMenu < 1 || choixMenu > 9)
printf("Erreur de saisie");
} while (choixMenu != 9); //JUSQU'AU TEMPS QUE CHOIXMENU EGAL A 9
return 0;
}
float DHT::getHeatIndex() {
return convertFtoC(computeHeatIndex(convertCtoF(readTemperature()), readHumidity()));
}
