[Radiance-general] HEAD

[Jack de Valpine]

Hi Lucio,

Compiling Radiance should not results in general operating system 
instabilities. It has nothing to do with the operation of the OS. I run 
a few different linux distributions, fedora core, ubuntu and caos. If 
you can tell me what compilation problems you ran into and what version 
of linux  then I can try to offer some input.

-Jack

loscotec at libero.it wrote:
> Thank you very much Greg for explanation about HEAD. 
>
> Luckily I'm linux user, but unluckily for head to be installed, if I read right, compiling is required. 
>
> Compiling gives me much problems .. I tried to solve them (it seemed it was gcc problems) but the only result was that my system became very unstable and finally didn't even boot, so I had to reinstall the system and feel satisfied of binaries.. !
>
> Lucio
>
>
> .Hi Lucio,
> .
> .The lamp color data also includes depreciation factors, which  
> .probably account for the 10% difference.  I assume the "white" value  
> .is larger.
> .
> .A long-standing bug has been recently pointed out by Zack Rogers  
> .related to the orientation of full photometric distributions, and has  
> .been included in the latest HEAD available from radiance-online.org.   
> .A statement has also been added to clarify the assignment of the  
> .width (along y) and length (along x) axes.
> .
> .Hope this helps.
> .-Greg
> .
> .> From: "loscotec\@libero\.it" <loscotec at libero.it>
> .> Date: February 6, 2008 6:28:49 AM PST
> .>
> .> Hi everybody !
> .>
> .> I've got a problem I'm not sure how to deal with.
> .>
> .> I'm using a Disano light to simulate a tunnel lighting. It is a  
> .> fluorescent light.
> .>
> .> I converted it to radiance format from ies format (previously  
> .> translated from eulumdat format) using ies2rad with no specific  
> .> value. Then I calculated illuminance on road surface visualizing  
> .> isolux scheme.
> .>
> .> Then I converted the same light with the "-t white" option. And  
> .> calculated illuminance's isolux as before.
> .>
> .> The two isolux schemes are different, being value for the white  
> .> case almost 10 % bigger.
> .>
> .> Shouldn't them be equal?
> .>
> .> I tried simulating same case in dialux and calculux, and they do  
> .> report  almost same values as the white case.
> .>
> .> What's wrong? Am I missing some knowledge / trick / anything?
> .>
> .> Lucio
> .>
> .> Ps : I also discovered some problems both in ies2tab and in  
> .> eulumcnv. The second, badly converting photometry (some dark  
> .> circles appear in the lighted scene as missing photometric values),  
> .> the first badly converting geometry (flipping x and y definitions).  
> .> But I have to check this things a little more.
> .
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> .
>
> .. Caminante no hay camino, solo se hace camino al andar .. 
>
>
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>   

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