diff options
Diffstat (limited to 'Sun.h')
-rw-r--r-- | Sun.h | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -7,10 +7,13 @@ class Sun { public: Sun(float latitude0): latitude(latitude0){}; + Sun(){}; + + void setlatitude(float latitude0){latitude=latitude0;}; float declination(int day) {return 23.4*sin(2*M_PI*(284+day)/365);} - float hourangle(float time) {return 15*(time-12);} - float evelationangle(int day, float time) { + float hourangle(int time) {return 15*(time-12);} + float elevationangle(int day, int time) { return asin(sin(declination(day)*M_PI/180)* sin(latitude*M_PI/180)* cos(hourangle(time)*M_PI/180)* @@ -18,15 +21,15 @@ class Sun cos(latitude*M_PI/180)) *180/M_PI; } - float azimutangle(int day, float time){ + float azimutangle(int day, int time){ float tau, sin_tau, cos_tau, sin_phi, cos_phi, tan_dec; + 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); - tan_dec = tan(declination(day)*M_PI/180); return atan2(sin_tau, cos_tau*sin_phi-tan_dec*cos_phi)/180*M_PI; } |