Calculate the portion of the area the shadow is occupying

grasshopper ladybug
1

Hello,

I am trying to calculate what portion of the area the shadow being cast in the simulation is occupying of the total area of the test surface. I don’t think the shadow is isolated in the result mesh (from the sun simulation) that’s why I am not getting an accurate number?

portion of shadow of the test surface area
portion of shadow of the test surface area1799×885 117 KB

Thanks!
Shadow area portion.gh (69.7 KB)

2

This is how you do it with native Grasshopper components:

image
image1126×445 48.6 KB

Shadow area portion_CWM.gh (52.0 KB)

1 Like
3

Thanks for the reply. Although, how is the shaded portion greater than the entire area of the testing surface?

Shading portion_2
Shading portion_21920×857 140 KB

4

You had two legend parameters so the study was running twice:

image
image662×559 38.5 KB

Just remove the legend parameters and the resulting area won’t be multiplied by 2.

5

Got it! Thanks heaps!