788 |
|
{ |
789 |
|
if (msg != NULL) |
790 |
|
fprintf(stderr, "%s: Use error - %s\n\n", progname, msg); |
791 |
< |
fprintf(stderr, "Usage: %s month day hour [...]\n", progname); |
792 |
< |
fprintf(stderr, " or: %s -ang altitude azimuth [...]\n", progname); |
791 |
> |
fprintf(stderr, "Usage: %s month day hour [-y year] [...]\n", progname); |
792 |
> |
fprintf(stderr, " or: %s -ang altitude azimuth [...]\n", progname); |
793 |
|
fprintf(stderr, " followed by: -P epsilon delta [options]\n"); |
794 |
|
fprintf(stderr, " or: [-W|-L|-G] direct_value diffuse_value [options]\n"); |
795 |
< |
fprintf(stderr, " or: -E global_irradiance [options]\n\n"); |
796 |
< |
fprintf(stderr, " Description:\n"); |
795 |
> |
fprintf(stderr, " or: -E global_irradiance [options]\n\n"); |
796 |
> |
fprintf(stderr, " Description:\n"); |
797 |
|
fprintf(stderr, " -P epsilon delta (these are the Perez parameters) \n"); |
798 |
|
fprintf(stderr, " -W direct-normal-irradiance diffuse-horizontal-irradiance (W/m^2)\n"); |
799 |
|
fprintf(stderr, " -L direct-normal-illuminance diffuse-horizontal-illuminance (lux)\n"); |