As of a few hours ago, I can no longer conduct radiation analyses through Ladybug. The problem seems similar to the previous post by GB, except I have not received an error message. Instead, everything looks normal except that no matter how I change the parameters or flip the surfaces, every surface is registering as 0 kWh/m2 (as seen below). I’ve tried multiple files (including files that worked fine yesterday) but I always get the same result.
I’ve attached all my files below. Any help would be greatly appreciated!
Mass.3dm (216 KB)
Mass.gh (30.6 KB)
USA_OH_Cincinnati.Muni.AP-Lunken.Field.724297_TMY3.epw (1.55 MB)
Hi Caleb,
Simple: You just need to insert LB_LB component and let it fly. That’s it.
-A.
I wish it were that simple, but I’ve already done. I went back to verify and still got the same result.
This so strange then because on my end it works completely fine.
I will try to set the UseOldRes in the genCumulativeSkyMtx component to False, so it will recalculate the sky radiation.
-A.
That is strange.
I really have no idea why it stopped working for me. Maybe I need to re-install Ladybug.
I re-installed Ladybug, but unfortunately the radiation analysis still does not work.
Try another weather file.
Did you tried what i suggested above?
Got it to work! Both of those methods did the trick. I guess I just had to toggle UseOldRes to False a few times before it actually registered and recalculated the sky radiation.
Thanks a lot for the help Abraham.
No problem.
But now i’m having a question for Mostapha, which is kind of related:
The genCulativeSky calculation results are supposed to be located at c:\ladybug. I don’t find it there. Do you know where they are now?
Hi Abraham,
As Chris mentioned on Github, if the user doesn’t have full access to C:\ then the folder will be at C:\Users%USERNAME%\AppData\Roaming\Ladybug\ to avoid any potential permission issues.
I tried reinstalling Ladybug and changing the EPW file and it’s still all blue… Any suggestions?
Check the normal directions.
-A.
I tried flipping them, and exploding the brep into individual surfaces. It’s still showing up all blue.
I’ve attached the files. Do you have any other suggestions? Thanks for your help.
Radiation Analyis.3dm (3.48 MB)
Radiation_Analysis-.gh (397 KB)
USA_CA_San.Francisco.Intl.AP.724940_TMY.epw (1.58 MB)
It works for me as it is.
-A.
I figured out that there was a problem with my EPW file. Thanks for your help.
I have the same issue as perscribed above (producing script, downloading EPW file, toggling useoldres." But the results are the same.
My intentions for the analysis is to find the hot and cool spots on the groundp lanes for pedestrians so I can design a shading system (later). In a sense the grond is the geometry and the buildings are the context.
Any help on troubleshooting this would be appreciated!
DTLA_Master_MV_ladybug_edit_03.3dm (3.93 MB)
radition_analysis_01.gh (1.8 MB)
USA_CA_Los.Angeles.Downtown.722874_CTZ2010.epw (1.48 MB)
Check you normal directions. They should point outwards (dir command in rhino).
-A.
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Hi Abraham,
Thanks for your input! Changing both the mentioned items have provided me the same results…
Any other tips I should be looking at?
Thanks
I believe i answered to this in another discussion … did you posted this twice?
It has to be with thenegative distFromSurface you provided. Give a positive value, like 0.1.
-A.
Hi Abraham,
Are you sure this is not a problem with Ladybug?
I just did download the Radiation analysis file from hydrashare.github and set both boolean toggles to true and I get the same results as other users mentioned above.
I did write definition from the scratch and still get the same result.
