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Comparing ray/doc/man/man1/gendaymtx.1 (file contents):
Revision 1.2 by greg, Tue Feb 5 06:00:19 2013 UTC vs.
Revision 1.6 by greg, Fri May 30 00:00:54 2014 UTC

# Line 7 | Line 7 | gendaymtx - generate an annual Perez sky matrix from a
7   [
8   .B "\-v"
9   ][
10 + .B "\-h"
11 + ][
12   .B "\-d|\-s"
13   ][
14   .B "\-r deg"
# Line 18 | Line 20 | gendaymtx - generate an annual Perez sky matrix from a
20   .B "\-c r g b"
21   ][
22   .B "-o{f|d}"
23 + ][
24 + .B "-O{0|1}"
25   ]
26   [
27   .B "tape.wea"
# Line 68 | Line 72 | Alternatively, the
72   .I \-s
73   option may be used to exclude any direct solar component from the output.
74   .PP
75 + By default,
76 + .I gendaymtx
77 + assumes the positive Y-axis points north such that the first sky patch
78 + is in the Y-axis direction on the horizon, the second patch is just
79 + west of that, and so on spiraling around to the final patch near the zenith.
80   The
81   .I \-r
82   (or
83   .I \-rz)
84   option rotates the sky the specified number of degrees counter-clockwise
85 < about the zenith, i.e., east of South.
85 > about the zenith, i.e., west of north.
86   This is in keeping with the effect of passing the output of
87   .I gensky(1)
88   or
# Line 90 | Line 99 | option may be used to specify binary float or double o
99   This is much faster to write and to read, and is therefore preferred on
100   systems that support it.
101   (MS Windows is not one of them.)\0
102 + The
103 + .I \-O1
104 + option specifies that output should be total solar radiance rather
105 + than visible radiance.
106 + The
107 + .I \-h
108 + option prevents the output of the usual header information.
109   Finally, the
110   .I \-v
111   option will enable verbose reporting, which is mostly useful for
# Line 111 | Line 127 | Ian Ashdown wrote most of the code,
127   based on Jean-Jacques Delaunay's original gendaylit(1) implementation.
128   Greg Ward wrote the final parameter parsing and weather tape conversion.
129   .SH "SEE ALSO"
130 < dctimestep(1), genBSDF(1), gendaylit(1), gensky(1), genskyvec(1), rcontrib(1),
131 < xform(1)
130 > dctimestep(1), genBSDF(1), gendaylit(1), gensky(1), genskyvec(1),
131 > rcollate(1), rcontrib(1), xform(1)

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