I’ve been wanting to run a daylight optimization of a test typical room for a project in Antarctica through Ladybug and Honeybee in grasshopper. When I run a simulation, no results pop up and the ill. file is empty.
Replacing a weather file by something else (Sydney), everything runs fine.
With LB, I looked in the file and can’t see anything wrong about it, apart from 0 illuminance for several months - which is correct…
I tried to run the scenario of only a couple of daylight months and even that doesn’t give me any results, since ill. the file isn’t written from the first instance and analysis period to be set up after the clacs.
In LB forum, I’ve been recommended to raise the question here.
It might have something to do with all the zero values for Direct Normal and Diffuse Horizontal radiation during daytime in the WEA file for Antarctica. It seems that gendaylit, the program referred to in the above error message, fails if both direct-normal and diffuse-horizontal radiation are zero.
Does anyone have any thoughts on the matter?