[Radiance-general] rotation

[Bleicher, Thomas]

Hi all.
 
I'll step in on this:
 
The basics are spelled out in the man page of  'replmarks'
(not 'xform' as Giulio wrote).  He has explained the usage
himself in the meantime. Just two things to note:
 
1) Check the orientation of the lumiaire or box created by ies2rad.
    For linear luminaires the 'main luminous axis' runs right across,
    not along the luminare. If you have a fitting for a 35 W fluorescent
    tube (about 1.5m long) it will extend from y=-0.75 to y=0.75 while
    the x dimension may only be 0.1 m. The replmark marker therefore
    is orthogonal to the luminare body.
 
2) Photometric files are usually created with the luminaire pointing
    down, even if the fitting is intended and constructed to light up a
wall.
    Check a photometic plot and decide wether you have to turn around
    the luminaire.
 
Thomas 
 


  _____  

From: radiance-general-bounces at radiance-online.org
[mailto:radiance-general-bounces at radiance-online.org] On Behalf Of Mark
de la Fuente
Sent: 16 August 2006 14:51
To: Radiance
Subject: RE: [Radiance-general] rotation


Giulio,
 
How would you do this?  Do you have an example?
 
Thanks
 
Mark
 
Message: 5
Date: Wed, 16 Aug 2006 10:35:26 +0100
From: "Giulio Antonutto" <Giulio.Antonutto at arup.com>
Subject: RE: [Radiance-general] rotation
To: "Radiance general discussion"
 <radiance-general at radiance-online.org>
Message-ID:
 <CC0B19F4C6132F4D9FDDEBF194200FB501739241 at ldcexc02.global.arup.com>
Content-Type: text/plain; charset="us-ascii"
 
why not to use replmarks?
 
draw triangles in your favourite 3d program and use them to feed
xform...
 
easy and quick...
 
ciao
 
G>


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