How to calculate the volume of the alpha shape 3D

[Kasi]

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[Kasi]

I have built an object using the type Alpha _ shape _ 3. How do I calculate the volume of that object?

[afabri]

Iterate over the cells in the alpha shape using this iterator and sum up the volume of the tetrahedra

[stla]

See my code here (vol1 and vol2).