[EnergyPlus_Support] shading surfaces

["Arno Dentel" <arno.dentel@xxxxxxxxxxxxxxx>]

Hello.
I have a question on the I/O Manual page 144.
There is an example with an overhang and the proper vertices:
The specification for this overhang in the manual is:
(C,-B,D),(C,0,D),(C+A,0,D),(C+A,-B,D)
But the upper left corner is (C,0,D) and by the convention clockwise it
is:
(C,0,D) , (C+A,0,D) , (C+A,-B,D) , (C,-B,D)
Is this correct?
To determine the outward facing normal the shading surfaces are viewed
form the outside, or?
So in the case of figure 22, from the top.
How is the convention by shading vertical surfaces on a flat roof?
 
Thanks in advance. 
Arno 
 


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