Version 12 introduces FilteredEntityClass, which allows you to represent a class of entities that satisfy a condition. The condition can be any Boolean-valued property or—using EntityFunction—an arbitrary expression.
Represent the class of all convex "Polyhedron" entities.
Use SampledEntityClass to represent a slice of the convex polyhedra.
Retrieve a Graphics3D for each entity in the sample.
Show the net graph and an image of the result in a Dataset.