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Comparing ray/doc/man/man1/gendaymtx.1 (file contents):
Revision 1.5 by greg, Thu Sep 5 17:53:22 2013 UTC vs.
Revision 1.12 by greg, Mon Apr 13 17:12:19 2020 UTC

# Line 7 | Line 7 | gendaymtx - generate an annual Perez sky matrix from a
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 "\-M sunmods"
19 + ][
20   .B "\-r deg"
21   ][
22   .B "\-m N"
# Line 40 | Line 48 | parameter setting.
48   .PP
49   Increasing the
50   .I \-m
51 < parameter, typically by factors of two, yields a higher resolution
51 > parameter yields a higher resolution
52   sky using the Reinhart patch subdivision.
53   For example, setting
54   .I "\-m 4"
# Line 51 | Line 59 | Thus, an hourly weather tape for an entire year would
59   yield 8760x3 (26280) values per output line (row).
60   .PP
61   The
62 + .I \-A
63 + option tells
64 + .I gendaymtx
65 + to generate a single column corresponding to an average sky
66 + computed over all the input time steps, rather than one
67 + column per time step.
68 + .PP
69 + The
70   .I \-c
71   option may be used to specify a color for the sky.
72 < The gray value should equal 1 for proper energy balance
72 > The gray value should equal 1 for proper energy balance.
73   The default sky color is
74   .I "\-c 0.960 1.004 1.118".
75   Similarly, the
# Line 65 | Line 81 | corresponding to a 20% gray.
81   .PP
82   The
83   .I \-d
84 < option may be used to produce a sun-only matrix, with no sky contributions.
84 > option may be used to produce a sun-only matrix, with no sky contributions,
85 > and the ground patch also set to zero.
86   Alternatively, the
87   .I \-s
88 < option may be used to exclude any direct solar component from the output.
88 > option may be used to exclude any direct solar component from the output,
89 > with the rest of the sky and ground patch unaffected.
90 > If there is a sun in the description,
91 > .I gendaymtx
92 > will include its contribution in the four nearest sky patches,
93 > distributing energy according to centroid proximity.
94   .PP
95 + The
96 + .I \-n
97 + option may be used if no matrix output is desired.
98 + This may be used to merely check the input, or in combination with the
99 + .I \-D
100 + option, below.
101 + .PP
102 + The
103 + .I \-D
104 + option may be used to specify an output file to contain a list of
105 + solar positions and intensities corresponding to time steps in the
106 + weather tape where the sun has any portion above the horizion.
107 + Sun radiance values may be zero if the direct amount is zero on the input.
108 + Sun modifiers and names will be indexed by the minute, numbered from
109 + midnight, January 1st.
110 + If a hyphen ('-') is given as the argument to
111 + .I \-D,
112 + then the sun descriptions  will be directed to the standard output.
113 + This implies the
114 + .I \-n
115 + option just described.
116 + If the
117 + .I \-M
118 + option is given as well, it will be used to record the modifier
119 + names used in the
120 + .I \-D
121 + output, for convenient input to
122 + .I rcontrib(1)
123 + and
124 + .I rfluxmtx(1).
125 + .PP
126   By default,
127   .I gendaymtx
128   assumes the positive Y-axis points north such that the first sky patch
# Line 101 | Line 154 | The
154   .I \-O1
155   option specifies that output should be total solar radiance rather
156   than visible radiance.
157 + The
158 + .I \-h
159 + option prevents the output of the usual header information.
160   Finally, the
161   .I \-v
162   option will enable verbose reporting, which is mostly useful for
# Line 123 | Line 179 | based on Jean-Jacques Delaunay's original gendaylit(1)
179   Greg Ward wrote the final parameter parsing and weather tape conversion.
180   .SH "SEE ALSO"
181   dctimestep(1), genBSDF(1), gendaylit(1), gensky(1), genskyvec(1),
182 < rcollate(1), rcontrib(1), xform(1)
182 > rcollate(1), rcontrib(1), rfluxmtx(1), xform(1)

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