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DO:4.5 NON-MANIFOLD PARTS

• A manifold part makes sense mathematically. A non-manifold part may be interpreted in a number of ways, when dealing with general cases.

• Some examples below show manifold/non-manifold shapes

• Non-manifold parts have,

- vertices with less than 3 adjoining faces

- edges with more or less than two adjoining faces

- etc.

• Non-manifold parts are required for,

- composite material modeling in a single part

- assembly modeling where parts touch or overlap (press fit)

- other Future Applications ????