[Bldg-sim] External shading device design tool

[JH Choi]

Dear Colleagues,

I am looking for a software for external shading device design.
I can recall a software that I used long time ago, which has a visual
interface to show a size of overhang / fin based on input. Unfortunately, I
cannot remember the name.

Please recommend any software which has similar functions.

Thanks in advance,

Bryan
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