39 |
|
double hour; /* standard time */ |
40 |
|
double altitude, azimuth; /* or solar angles */ |
41 |
|
/* default values */ |
42 |
< |
int cloudy = 0; |
42 |
> |
int cloudy = 0; /* 1=standard, 2=uniform */ |
43 |
|
int dosun = 1; |
44 |
|
double zenithbr = -1.0; |
45 |
|
double turbidity = 2.75; |
85 |
|
dosun = argv[i][0] == '+'; |
86 |
|
break; |
87 |
|
case 'c': |
88 |
< |
cloudy = 1; |
88 |
> |
cloudy = argv[i][0] == '+' ? 2 : 1; |
89 |
|
dosun = 0; |
90 |
|
break; |
91 |
|
case 't': |
155 |
|
zenithbr = 0.0; |
156 |
|
/* Compute horizontal radiance */ |
157 |
|
if (cloudy) { |
158 |
< |
groundbr = zenithbr*0.777778; |
158 |
> |
if (cloudy == 2) |
159 |
> |
groundbr = zenithbr; |
160 |
> |
else |
161 |
> |
groundbr = zenithbr*0.777778; |
162 |
|
printf("# Ground ambient level: %f\n", groundbr); |
163 |
|
} else { |
164 |
|
F2 = 0.274*(0.91 + 10.0*exp(-3.0*(PI/2.0-altitude)) + |
194 |
|
printf("2 skybright skybright.cal\n"); |
195 |
|
printf("0\n"); |
196 |
|
if (cloudy) |
197 |
< |
printf("3 1 %.2e %.2e\n", zenithbr, groundbr); |
197 |
> |
printf("3 %d %.2e %.2e\n", cloudy, zenithbr, groundbr); |
198 |
|
else |
199 |
|
printf("7 -1 %.2e %.2e %.2e %f %f %f\n", zenithbr, groundbr, |
200 |
|
F2, sundir[0], sundir[1], sundir[2]); |
203 |
|
|
204 |
|
printdefaults() /* print default values */ |
205 |
|
{ |
206 |
< |
if (cloudy) |
206 |
> |
if (cloudy == 1) |
207 |
|
printf("-c\t\t\t\t# Cloudy sky\n"); |
208 |
+ |
else if (cloudy == 2) |
209 |
+ |
printf("+c\t\t\t\t# Uniform cloudy sky\n"); |
210 |
|
else if (dosun) |
211 |
|
printf("+s\t\t\t\t# Sunny sky with sun\n"); |
212 |
|
else |