[Radiance-general] Errors with 'gendaymtx' and 'dctimestep'

[Greg Ward]

Hi Alireza,

Try your dctimestep command in Error#2 without the "-n 8760" option.  The behavior was changed since the tutorial was written so this option is no longer needed with recent releases of the software.  This has been mentioned in earlier threads this month, so you might want to go back and read through those:

	http://radiance-online.org/pipermail/radiance-general/2016-March/thread.html

Cheers,
-Greg

> From: Alireza Hashemloo <alireh at uw.edu>
> Subject: Re: [Radiance-general] Errors with 'gendaymtx' and 'dctimestep'
> Date: March 27, 2016 7:38:52 PM PDT
> 
> Hi Andy,
> 
> Thank your for your response.
> 
> Error#1:
> 
> I checked the link and added the 0.53 argument to the -5 option and it appears to work as I did not received the same error message again.
> 
> Error#2:
> 
> The 'daylightmatrix.dmx' is generated by the following command using the MF:1 option as shown in the section 6.5 of the tutorial:
> 
> $ genklemsamp -c 1000 -vd 0 -1 0 objects/daymtxsurf.rad | \
> rcontrib -c 1000 -ab 2 -ad 1024 -e MF:1 -f reinhart.cal -b rbin -bn Nrbins \
> -m sky_glow octs/model_3ph.oct > matrices/daylightmatrix.dmx
> 
> Once I run the dctimestep as shown in section 7.6 of the tutorial for the 'three-phase simulation part' of the five-phase process:
> 
> $ dctimestep -n 8760 -if -o hourlypics/back_%04d.hdr viewpics/back_%03d.hdr \
> bsdf/fullwindow.xml matrices/daylightmatrix.dmx matrices/OakLand.smx
> 
> I receive the error message: 
> 
> fatal - improper length for binary file 'matrices/Oakland_direct.smx'
> 
> 
> The same error is raised when I call dctimestep for the 'direct sun component of the three-phase part' as well as 'direct sun component using the model with many suns' as shown in the section 7.6 of 
> the tutorial:
> 
> $ dctimestep -n 8760 -if -o hourlypics_dir/back_%04d.hdr viewpics_dir/back_%03d.hdr \
> bsdf/fullwindow.xml matrices/daylightmatrix_direct.dmx matrices/OakLand_direct.smx
> 
> $ dctimestep -n 8760 -if -o hourlypics_ds/back_%04d.hdr viewpics_ds/back_%04d.hdr \
> matrices/OakLand_direct_m6.smx
> 
> 
> Thank you for your help,
> Alireza
> 
> On Sun, Mar 27, 2016 at 4:24 PM, Andy McNeil <mcneil.andrew at gmail.com> wrote:
> Hi Alireza,
> 
> Error #1:
> The problem and solution is explained here:
> https://unmethours.com/question/10921/how-do-i-use-the-5-option-of-gendaymtx/
> 
> Error #2:
> Have you checked that your daylight matrix uses the same sky subdivision as the sky matrix? The default for gendaymtx is 145 sky divisions.
> 
> Andy
> 
> On Sat, Mar 26, 2016 at 11:54 PM, Alireza Hashemloo <alireh at uw.edu> wrote:
> Hello,
> 
> I have encountered two errors with gendaymtx and dctimestep with the five phase method tutorial that I would appreciate if you could help me with:
> 
> OS X Yosemite 10.10.2
> Radiance 5.0.8
> Command Line Environment: Terminal
> 
> 
> Error #1
> 
> Command:
> 
> $ gendaymtx -5 -d -m 6 -of skies/OakLand.wea > matrices/OakLand_direct_m6.smx
> 
> Error Message:
> 
> gendaymtx: missing solar disk size argument for '-5' option
> 
> 
> 
> Error #2
> 
> Command:
> 
> $ dctimestep -n 8760 -if -o hourlypics/back_%04d.hdr viewpics/back_%03d.hdr \
> bsdf/fullwindow.xml matrices/daylightmatrix.dmx matrices/OakLand.smx
> 
> Error Message:
> 
> fatal - improper length for binary file 'matrices/Oakland_direct.smx'
> 
> 
> description: the 'Oakland_direct.smx' has been generated by the following command:
> 
> $ gendaymtx -of -d skies/OakLand.wea > matrices/OakLand_direct.smx
> 
> 
> Thank you for your help,
> Alireza
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