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Fast Boolean operation provides a good environment for
editing the old designs. The efficiency of Boolean
operation can be improved by reevaluating only the affected
portions of the bodies instead of the whole bodies. In this
thesis, the Topology Manager is proposed for fast reevaluation
of CSG editing operations. The Boolean trees are
embedded to the Boolean operations of the non-manifold geometric
system in order to record the history of design processes.
Therefore, the CSG editing operations can be performed
according to the operands of topology entities in merged
bodies. Several illustrations are presented to evaluate
the feasibility of the proposed algorithm.
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