[Radiance-general] Three Phase Method Tutorial - Example 1

[Alireza Hashemloo]

Hi Andy,

Thank you very much for your response.

1) Following your recommendation to provide the first 10 lines in the
daylight matrix and sky vector files:

Daylight matrix file (10 first lines):

#?RADIANCE
oconv materials/box_03.mat objects/box_03.rad sky/sky_white1.rad
rcontrib -c 1000 -e MF:4 -f reinhart.cal -b rbin -bn Nrbins -m sky_mat -faf
SOFTWARE= RADIANCE 4.2a lastmod  by  on w015t-001
CAPDATE= 2015:11:24 13:39:14
GMT= 2015:11:24 21:39:14
NCOMP=3
NCOLS=2306
FORMAT=float

Sky vector file (10 first lines):

#?RADIANCE
genskyvec -m 4 -c 1 1 1
NROWS=2306
NCOLS=1
NCOMP=3
FORMAT=ascii

6.78784323    6.78784323    6.78784323
12.3089937    12.3089937    12.3089937
12.399048    12.399048    12.399048

2) I managed to find the error in my process following the Example 1 in the
second tutorial (
https://www.gitbook.com/book/andymcneil/three-phase-method-tutorial/details).
However, I encountered the following error message in the last step using
the dctimestep call to generate renderings:

"fatal - unexpected column count in header"


Thank you for your help,
Alireza


On Mon, Nov 30, 2015 at 9:05 PM, Andy McNeil <mcneil.andrew at gmail.com>
wrote:

> Alireza,
>
> I suspect your first error stems from an unexpected or missing header. Can
> you open your daylight matrix and sky vector in notepad and respond with
> the first 10 lines in each file?
>
> The second tutorial that you've found is meant to replace the old
> tutorial, but I've not finished it yet so there may be some
> inconsistencies.  Can you email the comment line of your window.rad file
> (the one that starts #@rfluxmtx) as this is where the sampling basis is
> specified.
>
> Andy
>
>
>
> On Mon, Nov 30, 2015 at 6:41 PM, Alireza Hashemloo <alireh at uw.edu> wrote:
>
>> Hi Greg,
>>
>> Thank you for your response.
>>
>> I am working on a Windows 7 (64-bit) operating system and I use GitBash
>> shell for my command line.
>> Following the description of the two error messages relative to the two
>> versions of the Three-Phase Method tutorial, I have provided the exact
>> command line raising the errors
>> in the Example #1 of both tutorials:
>>
>> 1- Tutorial Document Title: "The Three-Phase Method for Simulating
>> Complex Fenestration with Radiance"
>>     Access Link:
>> http://www.radiance-online.org/learning/tutorials/Tutorial-ThreePhaseMethod.pdf
>>     Page # 21
>>     Command:    $ dctimestep images/vmx/window_%03d.hdr
>> data/singleclear.xml results/south.dmx skies/12_21_15.skv >
>> images/122115_clear.hdr
>>     Error: "fatal - unexpected EOF reading results/south.dmx"
>>
>> 2- Tutorial Document Title: "Radiance Three Phase Method Tutorial"
>>     Access link:
>> https://www.gitbook.com/book/andymcneil/three-phase-method-tutorial/details
>>     Page # 21
>>     Command:  $ vwrays -fa -vf views/back.vf -x 600 -y 600 | rfluxmtx
>> `vwrays -vf views/back.vf -x 600 -y 600 -d` -n 8 -fac -ab 12 -ad 50000 -lw
>> 2e-5 - objects/window.rad materials/testroom.mat objects/testroom.rad
>>     Error: "C:\Radiance\bin\rfluxmtx.exe: missing hemisphere sampling
>> type!"
>>
>> I hope the referenced commands would help to give a better description of
>> how the errors are raised.
>> Please let me know if you need any further information.
>>
>> Thank you,
>> Alireza
>>
>> On Mon, Nov 30, 2015 at 9:40 AM, Greg Ward <gregoryjward at gmail.com>
>> wrote:
>>
>>> Hi Alireza,
>>>
>>> There have been a few changes to the programs since this tutorial was
>>> written.  It would help to know what system you are on (esp. if Windows)
>>> and the exact commands you used leading up to the error.
>>>
>>> Cheers,
>>> -Greg
>>>
>>> *From: *Alireza Hashemloo <alireh at uw.edu>
>>>
>>> *Subject: *[Radiance-general] Three Phase Method Tutorial - Example 1
>>>
>>> *Date: *November 30, 2015 1:04:14 AM PST
>>>
>>>
>>> Hello,
>>>
>>> I have a couple of questions with regards to the three-phase method
>>> tutorials:
>>>
>>> 1- Following the Example 1 in the tutorial document titled as "The
>>> Three-Phase Method for Simulating Complex Fenestration with Radiance"
>>> (available at
>>> http://www.radiance-online.org/learning/tutorials/Tutorial-ThreePhaseMethod.pdf)
>>> I have encountered the following error message using the dctimestep (page
>>> 21) to generate a rendering:
>>>
>>> "fatal - unexpected EOF reading results/south.dmx"
>>>
>>> I have checked the content of the south.dmx file generated in the
>>> previous steps and it appears that with the exception of the first 9 lines
>>> providing information such as the Format, Software, Capdate etc, the
>>> remaining of the lines contain NULL values. This is despite the fact that I
>>> have not received any error messages following the Example 1 through each
>>> step prior to this last step where the EOF error is raised.
>>>
>>> 2- There is another document titled as "Radiance Three Phase Method
>>> Tutorial" (also by Andy McNeil) which I could not find on the Radiance
>>> website but it it published via GitBook at the following link:
>>>
>>>
>>> https://www.gitbook.com/book/andymcneil/three-phase-method-tutorial/details
>>>
>>> Following the Example 1 of this new tutorial document, the 'rcontib'
>>> call is replaced with 'rfluxmtx' to create the view matrix renderings. I
>>> have also attempted to pursue this example step by step, however, the call
>>> for the 'rfluxmtx' for generating view matrix renderings (page 21) raises
>>> the following error message:
>>>
>>> "missing hemisphere sampling type"
>>>
>>> I have checked the 'rfluxmtx' document describing the application of a
>>> "#@rfluxmtx variable=value" form to pass the sampling basis (eg. h=kf for
>>> full Klems sampling model). However, I could not find the correct syntax to
>>> add this variable to the rfluxmtx command call in the tutorial (page 21) in
>>> response to the "missing hemisphere sampling type" error.
>>>
>>>
>>> I would appreciate if you could help me with these two questions.
>>>
>>> Thank you,
>>> Alireza
>>>
>>>
>>> _______________________________________________
>>> Radiance-general mailing list
>>> Radiance-general at radiance-online.org
>>> http://www.radiance-online.org/mailman/listinfo/radiance-general
>>>
>>>
>>
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