gensky sky type

Hi all,

I am using gendaylit with input from weather file. During sunrise and
sunset, gendaylit shows "ERROR: Model parameters out of range". so I plan
to use gensky to generate the sky model (-B b -R r), where b and r are
calculated by "illumiance/179". However, I found the illuminance value at
5 pm (calculated using gensky with default sky type) jumps a lot from illum
at 4 pm (calculated using gendaylit). I changed the sky type to +i, which
decreases values. My question is that how I should choose the sky type for
gensky to avoid big change from gendaylit?

Thanks

JH

Dear JH,

at the moment, every feedback for errors of gendaylit is especially
appreciated.
We are currently adding some new features to gendaylit especially to avoid
errors for surise/sunset. All new features of gendaylit will be presented
also during the radiance workshop and we hope to have the new release 2.2
ready before the RADIANCE workshop takes place.
However, the error you have mentioned might be a different one. We are
just working on some bugs of the -L option. Are you using this option?
Please specify the precise command that leads to the error, including the
precise error message and your version of gendaylit (just type gendaylit
in your terminal).

Wendelin

···

___________________________________
Mag.rer.nat. Wendelin Sprenger
Division Thermal Systems and Buildings
Fraunhofer Institute for Solar Energy Systems ISE
Heidenhofstr. 2, 79110 Freiburg, Germany
Phone: +49 (0) 7 61/ 45 88-57 45
[email protected]

-------- Original Message --------
Subject:
[Radiance-general] gensky sky type
Resent-To:
[email protected]
Date:
Wed, 31 Jul 2013 00:20:01 -0400
From:
Jia Hu <[email protected]>
Reply-To:
Radiance general discussion <[email protected]>
To:
Radiance general discussion <[email protected]>

Hi all,

I am using gendaylit with input from weather file. During sunrise and
sunset, gendaylit shows "ERROR: Model parameters out of range". so I
plan to use gensky to generate the sky model (-B b -R r), where b and r
are calculated by "illumiance/179". However, I found the illuminance
value at 5 pm (calculated using gensky with default sky type) jumps a lot
from illum at 4 pm (calculated using gendaylit). I changed the sky type to
+i, which decreases values. My question is that how I should choose the
sky type for gensky to avoid big change from gendaylit?

Thanks

JH

Dear Wendelin,

I find that the weather data is -L 0 0, which causes the error message. It
is a false alarm. I may simply ignore this error message. I am using
gendaylit 2.0 downloaded from your website. Glad to know there is a new
release!

gendaylit 1 1 8 -a 25 -o 75 -m 75 -L 0 0

Thanks,

···

On Wed, Jul 31, 2013 at 9:28 AM, <[email protected]>wrote:

Dear JH,

at the moment, every feedback for errors of gendaylit is especially
appreciated.
We are currently adding some new features to gendaylit especially to avoid
errors for surise/sunset. All new features of gendaylit will be presented
also during the radiance workshop and we hope to have the new release 2.2
ready before the RADIANCE workshop takes place.
However, the error you have mentioned might be a different one. We are
just working on some bugs of the -L option. Are you using this option?
Please specify the precise command that leads to the error, including the
precise error message and your version of gendaylit (just type gendaylit in
your terminal).

Wendelin

___________________________________
Mag.rer.nat. Wendelin Sprenger
Division Thermal Systems and Buildings
Fraunhofer Institute for Solar Energy Systems ISE
Heidenhofstr. 2, 79110 Freiburg, Germany
Phone: +49 (0) 7 61/ 45 88-57 45
[email protected]
http://www.ise.fraunhofer.de

-------- Original Message --------
*Subject: *
[Radiance-general] gensky sky type
*Resent-To: *
*[email protected]* <[email protected]>
*Date: *
Wed, 31 Jul 2013 00:20:01 -0400
*From: *
Jia Hu *<[email protected]>* <[email protected]>
*Reply-To: *
Radiance general discussion *<[email protected]>*<[email protected]>
*To: *
Radiance general discussion *<[email protected]>*<[email protected]>

Hi all,

I am using gendaylit with input from weather file. During sunrise and
sunset, gendaylit shows "ERROR: Model parameters out of range". so I plan
to use gensky to generate the sky model (-B b -R r), where b and r are
calculated by "illumiance/179". However, I found the illuminance value at
5 pm (calculated using gensky with default sky type) jumps a lot from illum
at 4 pm (calculated using gendaylit). I changed the sky type to +i, which
decreases values. My question is that how I should choose the sky type for
gensky to avoid big change from gendaylit?

Thanks

JH

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