[Radiance-general] Five-phase Method Tutorial: Errors in generating direct sun coefficient matrix

[Alireza Hashemloo]

Hi Greg and Rob,

Thank you for your responses:

- It does not appear that the single back quotes are the source of the
problem as I tested the command following your recommendation without
passing the `vwrays -vf views/view_A.vf -x 600 -y 600 -d` to "rcontrib" and
the rtrace "invalid argument" error still appears.

- I have tested the approach to split the command into two parts as you had
suggested:

part 1:   vwrays -c 4 -pj 1 -fa -vf views/view_A.vf -x 600 -y 600 | rtrace
-h -opN -fa -ab 0 model_nosuns.oct > points.txt
part 2:   rcontrib -x 600 -y 600 -fac -fo -o viewpics_ds/back_%04d.hdr -e
MF:4 -f reinhart.cal -b rbin -bn Nrbins -m solar -c 4 -I -ab 1 -ad 100 -dt
0 -dc 1 -lw 1e-2 model_suns.oct < points.txt

the part 1 appears to work properly considering that a "points.txt" file is
generated. The part 2, however, does not appear to work: although I do not
receive any error messages on my command line, the rcontrib call is
completed immediately after it is run and 508 hdr images are generated in
the given directory. However, each .hdr file is only 1 KB and the attempt
to opening any of them is failed. It does not appear that the files have
actually been written successfully.

In addition, could you elaborate about your suggestion to  *" Replace the
"-x 600 -y 600" with the output of "vwrays -vf views/view_A.vf -x 600 -y
600 -d*" " in part 2 of the command?
Finally,  I was wondering where the definition for the "solar" modifier as
the target light source passed to the 'rcontrib' call (-m solar) is made in
the previous steps of the tutorial?

Thank you for your help.
Best Regards,

Alireza







On Mon, Mar 7, 2016 at 8:17 AM, Guglielmetti, Robert <
Robert.Guglielmetti at nrel.gov> wrote:

> On 3/6/16, 9:53 AM, "Greg Ward" <gregoryjward at gmail.com<mailto:
> gregoryjward at gmail.com>> wrote:
>
> I do not think you can have multiple processes under Windows using
> rcontrib, no matter which shell you use, so -n 1 (the default) is all you
> get.
>
>
> That is true; rcontrib on Windows will silently ignore -n settings > 1.
> On OpenStudio, you will get a heads up about this.
>
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