| 29 |
|
][ |
| 30 |
|
.B "-o{f|d}" |
| 31 |
|
][ |
| 32 |
< |
.B "-O{0|1}" |
| 32 |
> |
.B "\-O{0|1}" |
| 33 |
> |
][ |
| 34 |
> |
.B "\-i intvl" |
| 35 |
|
] |
| 36 |
|
[ |
| 37 |
|
.B "tape.wea" |
| 83 |
|
.I "\-g 0.2 0.2 0.2" |
| 84 |
|
corresponding to a 20% gray. |
| 85 |
|
.PP |
| 86 |
+ |
If there is a sun in the description, |
| 87 |
+ |
.I gendaymtx |
| 88 |
+ |
will include its contribution in the four nearest sky patches, |
| 89 |
+ |
distributing energy according to centroid proximity. |
| 90 |
|
The |
| 91 |
|
.I \-d |
| 92 |
|
option may be used to produce a sun-only matrix, with no sky contributions, |
| 94 |
|
Alternatively, the |
| 95 |
|
.I \-s |
| 96 |
|
option may be used to exclude any direct solar component from the output, |
| 97 |
< |
with the rest of the sky and ground patch unaffected. |
| 92 |
< |
If there is a sun in the description, |
| 93 |
< |
.I gendaymtx |
| 94 |
< |
will include its contribution in the four nearest sky patches, |
| 95 |
< |
distributing energy according to centroid proximity. |
| 97 |
> |
with the other sky and ground patches unaffected. |
| 98 |
|
.PP |
| 99 |
|
The |
| 100 |
|
.I \-u |
| 117 |
|
.I \-D |
| 118 |
|
option may be used to specify an output file to contain a list of |
| 119 |
|
solar positions and intensities corresponding to time steps in the |
| 120 |
< |
weather tape where the sun has any portion above the horizion. |
| 120 |
> |
weather tape where the sun has any portion above the horizon. |
| 121 |
|
Sun radiance values may be zero if the direct amount is zero on the input. |
| 122 |
|
Sun modifiers and names will be indexed by the minute, numbered from |
| 123 |
|
midnight, January 1st. |
| 157 |
|
using a similar transform. |
| 158 |
|
.PP |
| 159 |
|
The |
| 160 |
+ |
.I \-i |
| 161 |
+ |
option specifies the actual capture interval in minutes of the original |
| 162 |
+ |
weather data. |
| 163 |
+ |
Please see the man page for |
| 164 |
+ |
.I gendaylit |
| 165 |
+ |
to understand this correction, which is applied only near sunrise and |
| 166 |
+ |
sunset. |
| 167 |
+ |
.PP |
| 168 |
+ |
The |
| 169 |
|
.I \-of |
| 170 |
|
or |
| 171 |
|
.I \-od |
| 201 |
|
based on Jean-Jacques Delaunay's original gendaylit(1) implementation. |
| 202 |
|
Greg Ward wrote the final parameter parsing and weather tape conversion. |
| 203 |
|
.SH "SEE ALSO" |
| 204 |
< |
dctimestep(1), genBSDF(1), gendaylit(1), gensky(1), genskyvec(1), |
| 205 |
< |
rcollate(1), rcontrib(1), rfluxmtx(1), xform(1) |
| 204 |
> |
dctimestep(1), genBSDF(1), gendaylit(1), gensdaymtx(1), gensky(1), |
| 205 |
> |
genskyvec(1), genssky(1), |
| 206 |
> |
rcollate(1), rcontrib(1), rfluxmtx(1), rmtxop(1), xform(1) |
