[Radiance-general] Components don't show up

[Chris Yates]

All I can recall from memory is that IES didn't like spaces in file  
names at one point in its history.

Sent from my iPhone

On 11 May 2010, at 07:14, "Christoph Begert - SBE" <Christoph.Begert at sbe.com.au 
 > wrote:

> Thanks John and Lars
>
> I tried a few things based on your comments, e.g. calling up xform
> instead of xform2, making sure that the location input is ok, but
> unfortunately without success.
>
> The problem really seems to be specific to certain computers. One file
> which ran fine yesterday on my colleagues computer, didn't work on  
> mine
> when I tried to run it just afterwards.
>
> Could it be that there is something in e.g. my windows registry that
> causes this issue? The batch files created by VE include the following
> line before they run the radiance programs:
>
> SET PATH=C:\Windows;C:\Windows\system32;C:\Program Files\IES\VE
> 6\apps\ray
>
>
> Cheers
> Chris
>
>
>
> Kind regards,
>
>
>
> Christoph Begert
>
> Associate
>
> sbe
>
> sustainable built environments
>
> Innovative ideas, collaborative design, practical solutions
>
>
>
> -----Original Message-----
> From: radiance-general-bounces at radiance-online.org
> [mailto:radiance-general-bounces at radiance-online.org] On Behalf Of  
> John
> Mardaljevic
> Sent: Monday, 10 May 2010 7:59 PM
> To: radiance-general at radiance-online.org
> Subject: [Radiance-general] Components don't show up
>
> Chris,
>
> Xform2 is an additional program that IES created.  Similar to xform,
> IES uses xform2 to create rectangles of arbitrary dimension for, it
> seems, use as workplanes (and perhaps other functions).  It does this
> by applying arbitrary scaling in the x and y dimensions
> (independently) on a unit square polygon (z = 0.8) and translating the
> output to the desired location in the scene.  In addition to the usual
> xform options, xform2 has -sx and -sy to perform the scaling in the x
> & y dims.
>
> I came across this IES peculiarity when transferring IES created
> geometry to other platforms for simulation using standard (UNIX)
> Radiance.  In those instances it was simply a matter of stripping out
> the xform2 commands, which didn't affect the building geometry since
> their use was confined to generating workplanes.  However, from the
> error messages that you posted it seems that xform2 is being used for
> more general transformations where xform would suffice.  Perhaps IES
> have replaced xform with their own xform2. As an aside, I'm surprised
> to see any form of xform/2 command used for general building geometry
> created in IES because I expected its 3D modeller to create explicit
> geometry (for all but the workplanes).
>
> -John
>
> -----------------------------------------------
> Dr. John Mardaljevic
> Reader in Daylight Modelling
> Institute of Energy and Sustainable Development
> De Montfort University
> The Gateway
> Leicester
> LE1 9BH, UK
> +44 (0) 116 257 7972
> +44 (0) 116 257 7981 (fax)
>
> jm at dmu.ac.uk
> http://www.iesd.dmu.ac.uk/~jm
>
>
>
>
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>
> -----Original Message-----
> From: radiance-general-bounces at radiance-online.org
> [mailto:radiance-general-bounces at radiance-online.org] On Behalf Of  
> Lars
> O. Grobe
> Sent: Monday, 10 May 2010 11:21 AM
> To: Radiance general discussion
> Subject: Re: [Radiance-general] Components don't show up
>
> Hi Christoph!
>> I'm doing a glare analysis using Radiance in IES Virtual  
>> Environments.
>>
> I do not know that environment, however it seams that it simply calls
> rad on a scene?
>
>> For some reason, the components in the room sometimes don't show up
> and
>> I get the following error:
>> 0.00 %, oconv started processing    0.0000 hrs.
>>
>> xform2: cannot find file
>> "\CHRIST~1\100501~1\MELBOU~1\Radiance\Laptop13.rad"
>>
> (...)
>> 99.00 %, oconv finished      after   0.0000 hrs.
>>
> Hm, it looks like you have a modified version of oconv, never seen the
> time output for it before. I also do not know xform2. However the
> message is clear - the files are not found. Either this is a mistake  
> by
> xform2 or by the tool that was supposed to generate these files. So  
> the
> first thing to do is to check whether the listed files are at the  
> given
> locations. I guess the weird directory name have to do with some  
> windows
>
> file-system limitations? What surprises me is that xform2 uses
> backslashes for directories - is this the modification against xform
> that led to the name change?
>> This error came up after I changed the sky file, but it happened  
>> quite
>> randomly before, so I'm not sure whether this has anything to do with
>> it. Sometimes the same simulation worked fine when I ran it on a
>> different PC. However, the problem seems to spread.
>>
> If it happened randomly before there seam to be other reasons.
>
> So as mentioned before, it seams that the commands involved are not
> really part of radiance but some derived, modified binaries. Start
> debugging by finding out whether the error messages correctly detect
> these missing files. Then one could start to find out how this IES
> Virtual Environment works and creates / names / writes the files. In
> radiance, one would also typically have a variable RAYPATH set  
> including
>
> all file system paths where scene files are to be found.
>
> Cheers
>
> Lars.
>
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