Hi TIG
Many thanks for your detailed answer
I had planned to orient my model: the file was sent so that you realize the complexity of modeling and understanding why SP crashes
In fatc, I realize a PHPP (PassivHaus : energetic standard for buildings) study which asks for EACH bay leaf a correction factor (one for winter and one for summer) which indicates how much of the solar radiation hits the window surface relative to the radiation that would occur without this shading element (hence the complement of the % SP).
I thought I would take the average between the most favorable and the worst of each period (winter / summer)
The many small shadows created by the slatted handrails are too complicated to manually calculate this % : taht's the reason I pass through SketchUP + SP !
The rounding of 1.65 to 1.7m ² is against a real problem for the precision of the result : can SP be more precise ?
I do not understand when you explain : *"it should probably be simpler for you to get over the surfaces of the shaded areas [or the bed areas ], get the area [s] of selected face [s] from Entity Info"
The result will not be the same as the % given by ShadowProject ? Why do it if SP gives it to me directly, knowing that the model is too complex to draw manually ?
Sorry, I'm trying to understand at best ...
Thanks a lot for your help to a beginner (but probably your answer can help anothers who wonder how SP can answer to ...)
Laurent
