diff options
Diffstat (limited to 'Sun.h')
| -rw-r--r-- | Sun.h | 24 |
1 files changed, 11 insertions, 13 deletions
@@ -12,26 +12,24 @@ class Sun void setlatitude(float latitude0){latitude=latitude0;}; float declination(int day) {return 23.4*sin(2*M_PI*(284+day+1)/365);} - float hourangle(int time) {return 15*(time+1/*-12*/);} + float hourangle(int time) {return 15*(time+1-12);} float elevationangle(int day, int time) { return asin(sin(declination(day)*M_PI/180)* - sin(latitude*M_PI/180)* + sin(latitude*M_PI/180)+ cos(hourangle(time)*M_PI/180)* cos(declination(day)*M_PI/180)* - cos(latitude*M_PI/180)) - *180/M_PI; + cos(latitude*M_PI/180))*180/M_PI; } float azimutangle(int day, int time){ - float tau, sin_tau, cos_tau, sin_phi, cos_phi, tan_dec; + float tau = hourangle(time)*M_PI/180; + float sin_tau = sin(tau); + float cos_tau = cos(tau); + float sin_phi = sin(latitude*M_PI/180); + float cos_phi = cos(latitude*M_PI/180); + float tan_dek = tan(declination(day)*M_PI/180); - tan_dec = tan(declination(day)*M_PI/180); - tau = hourangle(time)*M_PI/180; - sin_tau = sin(tau); - cos_tau = cos(tau); - sin_phi = sin(latitude*M_PI/180); - cos_phi = cos(latitude*M_PI/180); - - return atan2(sin_tau, cos_tau*sin_phi-tan_dec*cos_phi)/180*M_PI; + return atan2(sin_tau, cos_tau*sin_phi-tan_dek*cos_phi)*180/M_PI; +// return asin(cos(declination(day))*sin(elevationangle(day, time))/cos(hourangle(time))); } private: float latitude; |