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// https://parzibyte.me | |
#include <stdio.h> | |
#include <math.h> | |
#define PI 3.14159265358979323846 | |
double gradosARadianes(double grados) | |
{ | |
return grados * PI / 180; | |
} | |
/* | |
Recibe dos pares de coordenadas en grados (así como las da Google maps) | |
Regresa la distancia que hay entre esos dos puntos en Kilómetros | |
*/ | |
double calcularDistanciaEntreDosCoordenadas(double lat1, double lon1, double lat2, double lon2) | |
{ | |
// Convertir todas las coordenadas a radianes | |
lat1 = gradosARadianes(lat1); | |
lon1 = gradosARadianes(lon1); | |
lat2 = gradosARadianes(lat2); | |
lon2 = gradosARadianes(lon2); | |
// Aplicar fórmula | |
double RADIO_TIERRA_EN_KILOMETROS = 6371; | |
double diferenciaEntreLongitudes = (lon2 - lon1); | |
double diferenciaEntreLatitudes = (lat2 - lat1); | |
double a = pow(sin(diferenciaEntreLatitudes / 2.0), 2) + cos(lat1) * cos(lat2) * pow(sin(diferenciaEntreLongitudes / 2.0), 2); | |
double c = 2 * atan2(sqrt(a), sqrt(1 - a)); | |
double d = RADIO_TIERRA_EN_KILOMETROS * c; | |
return d; | |
} | |
int main(int argc, char const *argv[]) | |
{ | |
//19.418596787147735, -99.13722247901451 | |
double latitud1 = 19.418596787147735; | |
double longitud1 = -99.13722247901451; | |
//20.96173231042663, -89.59867366422759 | |
double latitud2 = 20.96173231042663; | |
double longitud2 = -89.59867366422759; | |
printf("Calculando distancia entre %lf,%lf y %lf,%lf\n", latitud1,longitud1,latitud2,longitud2); | |
// Calcular | |
double distancia = calcularDistanciaEntreDosCoordenadas(latitud1, longitud1, latitud2, longitud2); | |
printf("La distancia es: %lf Km\n", distancia); | |
return 0; | |
} | |
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