Re: Water surface in hexahedron

The irregular hexahedron is a kind of tank. It can be oriented at
different angles so water surface gets different areas (fitting to the
shape of the tank). So I have the vector normal to the surface I also
know the vertices of the tank. It is convex hexahedron for simplicity.
The shape of the water volume can be quite complicated - not only
tetrahedron. I can imagine polyhedra shape of the volume occupied by
water.
I think also that the volume of the water is one of the key data needed
to get the area of the surface of the water.

.

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