| 7 |
|
[ |
| 8 |
|
.B "\-v" |
| 9 |
|
][ |
| 10 |
< |
.B "\-d|\-s" |
| 10 |
> |
.B "\-h" |
| 11 |
|
][ |
| 12 |
+ |
.B "\-A" |
| 13 |
+ |
][ |
| 14 |
+ |
.B "\-d|\-s|\-n" |
| 15 |
+ |
][ |
| 16 |
+ |
.B "\-D sunfile" |
| 17 |
+ |
][ |
| 18 |
|
.B "\-r deg" |
| 19 |
|
][ |
| 20 |
|
.B "\-m N" |
| 46 |
|
.PP |
| 47 |
|
Increasing the |
| 48 |
|
.I \-m |
| 49 |
< |
parameter, typically by factors of two, yields a higher resolution |
| 49 |
> |
parameter yields a higher resolution |
| 50 |
|
sky using the Reinhart patch subdivision. |
| 51 |
|
For example, setting |
| 52 |
|
.I "\-m 4" |
| 57 |
|
yield 8760x3 (26280) values per output line (row). |
| 58 |
|
.PP |
| 59 |
|
The |
| 60 |
+ |
.I \-A |
| 61 |
+ |
option tells |
| 62 |
+ |
.I gendaymtx |
| 63 |
+ |
to generate a single column corresponding to an average sky |
| 64 |
+ |
computed over all the input time steps, rather than one |
| 65 |
+ |
column per time step. |
| 66 |
+ |
.PP |
| 67 |
+ |
The |
| 68 |
|
.I \-c |
| 69 |
|
option may be used to specify a color for the sky. |
| 70 |
< |
The gray value should equal 1 for proper energy balance |
| 70 |
> |
The gray value should equal 1 for proper energy balance. |
| 71 |
|
The default sky color is |
| 72 |
|
.I "\-c 0.960 1.004 1.118". |
| 73 |
|
Similarly, the |
| 79 |
|
.PP |
| 80 |
|
The |
| 81 |
|
.I \-d |
| 82 |
< |
option may be used to produce a sun-only matrix, with no sky contributions. |
| 82 |
> |
option may be used to produce a sun-only matrix, with no sky contributions, |
| 83 |
> |
and the ground patch also set to zero. |
| 84 |
|
Alternatively, the |
| 85 |
|
.I \-s |
| 86 |
< |
option may be used to exclude any direct solar component from the output. |
| 86 |
> |
option may be used to exclude any direct solar component from the output, |
| 87 |
> |
with the rest of the sky and ground patch unaffected. |
| 88 |
> |
If there is a sun in the description, |
| 89 |
> |
.I gendaymtx |
| 90 |
> |
will include its contribution in the four nearest sky patches, |
| 91 |
> |
distributing energy according to centroid proximity. |
| 92 |
|
.PP |
| 93 |
+ |
The |
| 94 |
+ |
.I \-n |
| 95 |
+ |
option may be used if no matrix output is desired. |
| 96 |
+ |
This may be used to merely check the input, or in combination with the |
| 97 |
+ |
.I \-D |
| 98 |
+ |
option, below. |
| 99 |
+ |
.PP |
| 100 |
+ |
The |
| 101 |
+ |
.I \-D |
| 102 |
+ |
option may be used to specify an output file to contain a list of |
| 103 |
+ |
solar positions and intensities corresponding to time steps in the |
| 104 |
+ |
weather tape where the sun is visible above the horizion. |
| 105 |
+ |
.PP |
| 106 |
|
By default, |
| 107 |
|
.I gendaymtx |
| 108 |
|
assumes the positive Y-axis points north such that the first sky patch |
| 134 |
|
.I \-O1 |
| 135 |
|
option specifies that output should be total solar radiance rather |
| 136 |
|
than visible radiance. |
| 137 |
+ |
The |
| 138 |
+ |
.I \-h |
| 139 |
+ |
option prevents the output of the usual header information. |
| 140 |
|
Finally, the |
| 141 |
|
.I \-v |
| 142 |
|
option will enable verbose reporting, which is mostly useful for |
| 158 |
|
based on Jean-Jacques Delaunay's original gendaylit(1) implementation. |
| 159 |
|
Greg Ward wrote the final parameter parsing and weather tape conversion. |
| 160 |
|
.SH "SEE ALSO" |
| 161 |
< |
dctimestep(1), genBSDF(1), gendaylit(1), gensky(1), genskyvec(1), rcontrib(1), |
| 162 |
< |
xform(1) |
| 161 |
> |
dctimestep(1), genBSDF(1), gendaylit(1), gensky(1), genskyvec(1), |
| 162 |
> |
rcollate(1), rcontrib(1), xform(1) |
