Radiance-general Digest, Vole 81, Issue 19

Dear Alexis,
I would ask how tall the windows are? If the depth or your room is 30 meters and typically the depth side lighting will come into the space is 2-2.5 times the window height then you will have your answer as far as which one was more accurate. I will say it depends on the time of day/year but I am assuming you are using 12pm on the equinox for your time 3.2 DF seems high 30 meters into the space.

Tim Metcalfe
Kalwall Corporation
Daylight Modeling Group
1111 Candia Road
Manchester, N.H. 03105
1(800)258-9777 X4483
 Please consider your environmental responsibility before printing this e-mail

···

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of [email protected]
Sent: Monday, November 22, 2010 11:51 AM
To: [email protected]
Subject: Radiance-general Digest, Vol 81, Issue 19

Send Radiance-general mailing list submissions to
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When replying, please edit your Subject line so it is more specific
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Today's Topics:

   1. ECOTECT (Tim Metcalfe)
   2. RE: ECOTECT (Gabri?l Saskia)
   3. RE: RE: ECOTECT (alexis Loubeyre)

----------------------------------------------------------------------

Message: 1
Date: Mon, 22 Nov 2010 10:26:51 -0500
From: Tim Metcalfe <[email protected]>
Subject: [Radiance-general] ECOTECT
To: "[email protected]"
        <[email protected]>
Message-ID:
        <31A1F95173EDC043A63B0B06D158CE0742510B7D49@NTEXCHAN.kellercomp.local>
Content-Type: text/plain; charset="us-ascii"

Dear Alexis,
  I will say that the internal analysis methods (split flux) is not entirely accurate. I am wondering about your radiance export please explain how they are different.

Tim Metcalfe
Kalwall Corporation
Daylight Modeling Group
1111 Candia Road
Manchester, N.H. 03105
1(800)258-9777 X4483
P Please consider your environmental responsibility before printing this e-mail

________________________________
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
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Message: 2
Date: Mon, 22 Nov 2010 17:33:07 +0100
From: Gabri?l Saskia <[email protected]>
Subject: [Radiance-general] RE: ECOTECT
To: Radiance general discussion <[email protected]>
Message-ID:
        <7F4BCCD7D34E9F41824AC55F857E8FF6329FCC6FFF@ca-win-mbs02.artesis.be>
Content-Type: text/plain; charset="iso-8859-1"

Dear Alexis

I would like to add to this topic with our findings that large differences in daylight factor calculations exist between the different versions of Ecotect.

Best regards

Saskia Gabri?l
PhD candidate in architecture

Design Sciences
Artesis University College of Antwerp Belgium

From: [email protected] [mailto:[email protected]] On Behalf Of Tim Metcalfe
Sent: maandag 22 november 2010 16:27
To: [email protected]
Subject: [Radiance-general] ECOTECT

Dear Alexis,
  I will say that the internal analysis methods (split flux) is not entirely accurate. I am wondering about your radiance export please explain how they are different.

Tim Metcalfe
Kalwall Corporation
Daylight Modeling Group
1111 Candia Road
Manchester, N.H. 03105
1(800)258-9777 X4483
P Please consider your environmental responsibility before printing this e-mail

________________________________
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
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Message: 3
Date: Mon, 22 Nov 2010 16:49:22 +0000
From: alexis Loubeyre <[email protected]>
Subject: RE: [Radiance-general] RE: ECOTECT
To: <[email protected]>
Message-ID: <[email protected]>
Content-Type: text/plain; charset="iso-8859-1"

Dear All,

@ saskia:

if the results are different, which version should i trust?

@ Kalwall:

I've got my 3d model in Ecotect, I export my model to radiance (the grid in fact) , run the calculation and display results in Ecotect.

My model is a large floor for an office, one part of this office can't receive any external lights, my room is 30 m depth with only one side (SE) with windows.
With Ecotect v5, in the back of the room i've 0.2 where with Ecotect 2011 i've 3.2 for the DF.

Regards,

Alexis

From: [email protected]
To: [email protected]
Date: Mon, 22 Nov 2010 17:33:07 +0100
Subject: [Radiance-general] RE: ECOTECT

Dear Alexis I would like to add to this topic with our findings that large differences in daylight factor calculations exist between the different versions of Ecotect. Best regards Saskia Gabri?l
PhD candidate in architecture

Design Sciences
Artesis University College of Antwerp Belgium From: [email protected] [mailto:[email protected]] On Behalf Of Tim Metcalfe
Sent: maandag 22 november 2010 16:27
To: [email protected]
Subject: [Radiance-general] ECOTECT Dear Alexis, I will say that the internal analysis methods (split flux) is not entirely accurate. I am wondering about your radiance export please explain how they are different. Tim MetcalfeKalwall CorporationDaylight Modeling Group1111 Candia RoadManchester, N.H. 031051(800)258-9777 X4483P Please consider your environmental responsibility before printing this e-mail This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
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End of Radiance-general Digest, Vol 81, Issue 19
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Dear Everyone

I've just found out my problem, it came from link for the materials. In Ecotect 2011, the path for the material folder is good but the link in radiance didn't work. I'll try to fix or will use Ecotect v5.

So I'll continue to work on my project and be aware of my results!

Thank you for your help!

Alexis

···

From: [email protected]
To: [email protected]
Date: Mon, 22 Nov 2010 13:40:18 -0500
Subject: [Radiance-general] RE: Radiance-general Digest, Vole 81, Issue 19

Dear Alexis,
I would ask how tall the windows are? If the depth or your room is 30 meters and typically the depth side lighting will come into the space is 2-2.5 times the window height then you will have your answer as far as which one was more accurate. I will say it depends on the time of day/year but I am assuming you are using 12pm on the equinox for your time 3.2 DF seems high 30 meters into the space.

Tim Metcalfe
Kalwall Corporation
Daylight Modeling Group
1111 Candia Road
Manchester, N.H. 03105
1(800)258-9777 X4483
 Please consider your environmental responsibility before printing this e-mail

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of [email protected]
Sent: Monday, November 22, 2010 11:51 AM
To: [email protected]
Subject: Radiance-general Digest, Vol 81, Issue 19

Send Radiance-general mailing list submissions to
        [email protected]

To subscribe or unsubscribe via the World Wide Web, visit
        http://www.radiance-online.org/mailman/listinfo/radiance-general
or, via email, send a message with subject or body 'help' to
        [email protected]

You can reach the person managing the list at
        [email protected]

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Radiance-general digest..."

Today's Topics:

   1. ECOTECT (Tim Metcalfe)
   2. RE: ECOTECT (Gabri?l Saskia)
   3. RE: RE: ECOTECT (alexis Loubeyre)

----------------------------------------------------------------------

Message: 1
Date: Mon, 22 Nov 2010 10:26:51 -0500
From: Tim Metcalfe <[email protected]>
Subject: [Radiance-general] ECOTECT
To: "[email protected]"
        <[email protected]>
Message-ID:
        <31A1F95173EDC043A63B0B06D158CE0742510B7D49@NTEXCHAN.kellercomp.local>
Content-Type: text/plain; charset="us-ascii"

Dear Alexis,
  I will say that the internal analysis methods (split flux) is not entirely accurate. I am wondering about your radiance export please explain how they are different.

Tim Metcalfe
Kalwall Corporation
Daylight Modeling Group
1111 Candia Road
Manchester, N.H. 03105
1(800)258-9777 X4483
P Please consider your environmental responsibility before printing this e-mail

________________________________
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
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------------------------------

Message: 2
Date: Mon, 22 Nov 2010 17:33:07 +0100
From: Gabri?l Saskia <[email protected]>
Subject: [Radiance-general] RE: ECOTECT
To: Radiance general discussion <[email protected]>
Message-ID:
        <7F4BCCD7D34E9F41824AC55F857E8FF6329FCC6FFF@ca-win-mbs02.artesis.be>
Content-Type: text/plain; charset="iso-8859-1"

Dear Alexis

I would like to add to this topic with our findings that large differences in daylight factor calculations exist between the different versions of Ecotect.

Best regards

Saskia Gabri?l
PhD candidate in architecture

Design Sciences
Artesis University College of Antwerp Belgium

From: [email protected] [mailto:[email protected]] On Behalf Of Tim Metcalfe
Sent: maandag 22 november 2010 16:27
To: [email protected]
Subject: [Radiance-general] ECOTECT

Dear Alexis,
  I will say that the internal analysis methods (split flux) is not entirely accurate. I am wondering about your radiance export please explain how they are different.

Tim Metcalfe
Kalwall Corporation
Daylight Modeling Group
1111 Candia Road
Manchester, N.H. 03105
1(800)258-9777 X4483
P Please consider your environmental responsibility before printing this e-mail

________________________________
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
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------------------------------

Message: 3
Date: Mon, 22 Nov 2010 16:49:22 +0000
From: alexis Loubeyre <[email protected]>
Subject: RE: [Radiance-general] RE: ECOTECT
To: <[email protected]>
Message-ID: <[email protected]>
Content-Type: text/plain; charset="iso-8859-1"

Dear All,

@ saskia:

if the results are different, which version should i trust?

@ Kalwall:

I've got my 3d model in Ecotect, I export my model to radiance (the grid in fact) , run the calculation and display results in Ecotect.

My model is a large floor for an office, one part of this office can't receive any external lights, my room is 30 m depth with only one side (SE) with windows.
With Ecotect v5, in the back of the room i've 0.2 where with Ecotect 2011 i've 3.2 for the DF.

Regards,

Alexis

From: [email protected]
To: [email protected]
Date: Mon, 22 Nov 2010 17:33:07 +0100
Subject: [Radiance-general] RE: ECOTECT

Dear Alexis I would like to add to this topic with our findings that large differences in daylight factor calculations exist between the different versions of Ecotect. Best regards Saskia Gabri?l
PhD candidate in architecture

Design Sciences
Artesis University College of Antwerp Belgium From: [email protected] [mailto:[email protected]] On Behalf Of Tim Metcalfe
Sent: maandag 22 november 2010 16:27
To: [email protected]
Subject: [Radiance-general] ECOTECT Dear Alexis, I will say that the internal analysis methods (split flux) is not entirely accurate. I am wondering about your radiance export please explain how they are different. Tim MetcalfeKalwall CorporationDaylight Modeling Group1111 Candia RoadManchester, N.H. 031051(800)258-9777 X4483P Please consider your environmental responsibility before printing this e-mail This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
_______________________________________________
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Yeah Autodesk! Ecotect 5.6 could not substitute Radiance material
descriptions based on the file name (i. e. you have a material called
"wall" and Ecotect would use the description in the file "wall.rad"). If
that is indeed what's still broken in Ecotect 2011 then Autodesk did
indeed just slab on a new version number on the same old product.

BTW: I 'fixed' the problem for 5.6 by writing my own export routine
in Lua which did search for material files. Quite a bit of work, though.

Regards,
Thomas

···

On Tue, Nov 23, 2010 at 4:07 AM, alexis Loubeyre <[email protected]> wrote:

Dear Everyone

I've just found out my problem, it came from link for the materials. In
Ecotect 2011, the path for the material folder is good but the link in
radiance didn't work. I'll try to fix or will use Ecotect v5.