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Comparing ray/doc/man/man1/dctimestep.1 (file contents):
Revision 1.7 by greg, Thu Sep 5 17:53:22 2013 UTC vs.
Revision 1.11 by greg, Mon May 4 20:53:21 2015 UTC

# Line 7 | Line 7 | dctimestep - compute annual simulation time-step(s) vi
7   [
8   .B "\-n nsteps"
9   ][
10 + .B "\-h"
11 + ][
12   .B "\-o ospec"
13   ][
14   .B "\-i{f|d}
15 + ][
16 + .B "\-o{f|d}
17   ]
18   .B DCspec
19   [
# Line 20 | Line 24 | dctimestep - compute annual simulation time-step(s) vi
24   [
25   .B "\-n nsteps"
26   ][
27 + .B "\-h"
28 + ][
29   .B "\-o ospec"
30   ][
31   .B "\-i{f|d}
32 + ][
33 + .B "\-o{f|d}
34   ]
35   .B Vspec
36   .B Tbsdf.xml
# Line 69 | Line 77 | and may be passed on the standard input.
77   This data is assumed by default to be in ASCII format, whereas the
78   formats of the View and Daylight matrices
79   are detected automatically if given as binary data.
80 + .PP
81 + If the input sky data lacks a header, the
82 + .I \-n
83 + option may be used to indicate the number of time steps, which
84 + will be 1 for a sky vector.
85 + The sky input file must contain the number of
86 + columns specified in each sky patch row, whether it is read
87 + from the standard input or from a file.
88 + Input starts from the first patch at the first time step, then the
89 + first patch at the second time step, and so on.
90   The
91   .I \-if
92   or
93   .I \-id
94   option may be used to specify that sky data is in float or double
95   format, respectively, which is more efficient for large matrices.
96 < (Note that binary double data may not be read from stdin.)\0
96 > These options are unnecessary in the when the sky
97 > input has a header.
98   .PP
99 < Sent to the standard output of
99 > Any of the matrix or vector files may be read from a command
100 > instead of a file by
101 > using quotes and a beginning exclamation point ('!').
102 > .PP
103 > The standard output of
104   .I dctimestep
105 < is either an ASCII color vector with as many RGB triplets
105 > is either a color vector with as many RGB triplets
106   as there are rows in the View matrix, or a combined
107   .I Radiance
108   picture.
# Line 93 | Line 116 | component pictures, which will be summed according to
116   vector.
117   .PP
118   The
96 – .I \-n
97 – option may be used to compute multiple time steps in a
98 – single invocation.
99 – The sky input file must contain the number of
100 – columns specified in each sky patch row, whether it is read
101 – from the standard input or from a file.
102 – The columns do not need to be given on the same
103 – line, so long as the number of values totals 3*Nsteps*Npatches.
104 – Input starts from the first patch at the first time step, then the
105 – first patch at the second time step, and so on.
106 – .PP
107 – The
119   .I \-o
120   option may be used to specify a file or a set of output files
121   to use rather than the standard output.
# Line 112 | Line 123 | If the given specification contains a '%d' format stri
123   will be replaced by the time step index, starting from 1.
124   In this way, multiple output pictures may be produced,
125   or separate result vectors (one per time step).
126 + .PP
127 + A header will normally be produced on the output, unless the
128 + .I \-h
129 + option is specified.
130 + The
131 + .I \-of
132 + or
133 + .I \-od
134 + option may be used to specify IEEE float or double binary output
135 + data, respectively.
136   .SH EXAMPLES
137   To compute workplane illuminances at 3:30pm on Feb 10th:
138   .IP "" .2i
# Line 134 | Line 155 | Window2.dmx > view_6-21-12.hdr
155   To generate an hourly matrix of sensor value contributions from Skylight3
156   using a 3-phase calculation, where output columns are time steps:
157   .IP "" .2i
158 < gendaymtx -of Tampa.wea | dctimestep -if -n 8760 WPpts.vmx
158 > gendaymtx -of Tampa.wea | dctimestep WPpts.vmx
159   shade3.xml Skylight3.dmx > wp_win3.dat
160   .IP "" .2i
161   .PP
162   Generate a series of pictures corresponding to timesteps
163   in an annual simulation:
164   .IP "" .2i
165 < gendaymtx NYCity.wea | dctimestep -n 8760 -o tstep%04d.hdr dcomp%03d.hdr
165 > gendaymtx NYCity.wea | dctimestep -o tstep%04d.hdr dcomp%03d.hdr
166 > .PP
167 > To multiply two matrices into a IEEE-float result with header:
168 > .IP "" .2i
169 > dctimestep -of Inp1.fmx Inp2.fmx > Inp1xInp2.fmx
170   .SH AUTHOR
171   Greg Ward
172   .SH "SEE ALSO"
173 < gendaymtx(1), genklemsamp(1), genskyvec(1),
174 < mkillum(1), rcollate(1), rcontrib(1), rtrace(1), vwrays(1)
173 > gendaymtx(1), genklemsamp(1), genskyvec(1), getinfo(1),
174 > mkillum(1), rcollate(1), rcontrib(1), rmtxop(1), rtrace(1), vwrays(1)

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