[Radiance-general] Three-phase method troubles: NROWS missing after rfluxmtx

[Mostapha Sadeghipour]

Hi Reinier,

You need to use the -y option to specify the number of rows in your
rfluxmtx run so you don't need to do it manually.

Cheers,
Mostapha

On Fri, Feb 20, 2015 at 6:59 AM, Reinier Zeldenrust <
reinier.zeldenrust at atelierten.com> wrote:

> Hi all,
>
> I am following the latest approach to the three-phase method as described
> in Andy McNeil's 2014 Radiance Workshop Presentation, but when I generate
> view matrices my output is botched.
> With this command (I realise this is low accuracy, but for the moment I'm
> mainly testing workflow) :
>         rfluxmtx -ab 4 -ad 5000 < ChEast.pts - windows_pts/window_00.rad
> material.rad ChEast.rad > viewpts_00.mtx
> the header in the viewmatrix is as follows:
>         #?RADIANCE
>         oconv -f material.rad ChEast.rad windows_pts/window_01.rad
>         rcontrib -fo+ -ab 4 -ad 5000 -faa -c 1 -f klems_full.cal -bn
> Nkbins -b kbin(0.525501,0.0136168,-0.850684,0,0,1) -m M-nor
>         SOFTWARE= RADIANCE 4.3a lastmod  by nrel_nt
>         gugliel on rgugliel-W7-VM
>         CAPDATE= 2015:02:19 12:21:14
>         GMT= 2015:02:19 12:21:14
>         NCOMP=3
>         NCOLS=145
>         FORMAT=ascii
>
> When I try to do any matrix multiplication to get the three-phase result,
> I get problems with RMTXOP or dctimestep, which complain they can't load
> the matrix. If I add the line NROWS=81 (number of sensor points) manually
> in the header, I do get results. But I'm trying to run the simulation for a
> lot of windows so adding this line each time manually or with a script is a
> bit painful. Am I doing something wrong or is this a bug?
>
> Additionally, when I try to run dctimestep in annual mode, using the
> following command:
>         dctimestep -n 8760 viewpts_00.mtx grate.xml daylight_00.mtx
> annual.smx > test.dat
> I get:
>         'fatal - unexpected EOF reading annual.smx'
> even though my annual.smx has 146 rows (for all 146 Tregenza daylight
> patches) and 8760 columns.
>
> Any idea what is going wrong here?
>
> Many thanks,
> Reinier
>
>
>
>
> Reinier Zeldenrust
> Environmental Designer
> Atelier Ten
> Environmental Design Consultants + Building Services Engineers
>
>
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