| 55 |
|
The |
| 56 |
|
.I \-c |
| 57 |
|
option may be used to specify a color for the sky. |
| 58 |
< |
The gray value should equal 1 for proper energy balance |
| 58 |
> |
The gray value should equal 1 for proper energy balance. |
| 59 |
|
The default sky color is |
| 60 |
|
.I "\-c 0.960 1.004 1.118". |
| 61 |
|
Similarly, the |
| 67 |
|
.PP |
| 68 |
|
The |
| 69 |
|
.I \-d |
| 70 |
< |
option may be used to produce a sun-only matrix, with no sky contributions. |
| 70 |
> |
option may be used to produce a sun-only matrix, with no sky contributions, |
| 71 |
> |
and the ground patch also set to zero. |
| 72 |
|
Alternatively, the |
| 73 |
|
.I \-s |
| 74 |
< |
option may be used to exclude any direct solar component from the output. |
| 74 |
> |
option may be used to exclude any direct solar component from the output, |
| 75 |
> |
with the rest of the sky and ground patch unaffected. |
| 76 |
> |
If there is a sun in the description, |
| 77 |
> |
.I gendaymtx |
| 78 |
> |
will include its contribution in the four nearest sky patches, |
| 79 |
> |
distributing energy according to centroid proximity. |
| 80 |
|
.PP |
| 81 |
|
By default, |
| 82 |
|
.I gendaymtx |
