Hi, I think that there could be an error in the ouput from the sDA component. The sDA calculated from the DA results gives me a different result than the one from the sDA component. Am I doing the right calculations? Best regards, Federico [Capture15]

Hi, I am having the same issue. It seems sDA is too low (almost 2 or 3%) for north oriented windows with descent sizes. One thing I notice is that DA is insensitive toward occupancy schedule. I used the same approach as you illustrated in the image to calculate sDA but when I disconnect the schedul…

Hi @saram , Sometime you need to disable and enable again the component, but I do not think that this is the case. I checked the DA and sDA output for the same simulation but with different schedules, and I can see the changes. Maybe the problem is with the schedule component. Check the values wit…

@Federico587 , Thank you for double checking the results and reporting this. This looks like a bug. I checked the source code and it seems I have calculated the % of time instead of the % of area for sDA. ladybug-tools/honeybee/blob/0fc2acebbb203f03960ba7856100c102328cb5c6/honeybee/radiance…

Hi @mostapha , it is a pleasure that I can contribute just a little to this fantastic tool! If I may, since we are talking about bugs, do you mind have a look to the schedule component? As it is discussed her with @saram , it seems like the this component behavior is a little strange. It is fantas…

The original bug in sDA calculation is now fixed. I can’t recreate the issues with the schedule myself. @saram has provided me an example which will hopefully recreates the error. I will discuss the blind state discussion in a separate reply. [image] [mostaphaRoudsari] Fixed…

@saram , I think in you case the DA values didn’t go lower than 50 so it didn’t change the sDA. From the cases that I have tested the values are changing after changing the schedule. [image]

[image] saram: descent Thanks for fixing it. Please let us know when you are applying the shading algorithm to LEED sDA calculation.

Hi @saram , You should follow this topic for blinds operation implementation and share your thoughts: Blinds/shades operation in sDA calculation

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sDA calculation

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