【摘要】 根据协同设计环境下产品造型的特点,采用基于标识的实体模型和特征模型相结合的方法来进行产品模型的表示,有效地支持了特征编辑,并能保证协同模型的一致性。基于边界表示的变动基元集的增量传输算法,极大地减小了数据的传输量,保证了协同模型的实时同步性。更多还原

【Abstract】 This paper uses identifier-based solid model and feature model to express the product model fitting in with the needs of collaborative design environment. This expression of product model supports the feature editing effectively and maintains the consistence of collaborative model during the collaborative design. The incremental transmission algorithm of B-rep-based changed primitives is presented in this paper, reduces the model data requiring to be transmitted as far as possible, and guarantee the real-time synchronization of the collaborative model.更多还原