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Trying to figure out the geometry of an inflated plastic bag:

 

Pillow shape generated with Kangaroo (+Grasshopper + Rhino).

 

Below is a digitized (inflated) plastic bag analyzed in Rhino.

 

Daniel Piker (Kangaroo Physics) says:

“Turns out the mathematics of it [pneumatics] is ridiculously simple. For any triangle the pressure will be the vector cross product of 2 of its edges.”

 


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