【摘要】 提出了隐含约束的识别与规整方法，并利用图来描述图形实体的相互约束，用动态迭代法来处理动边变动对已有约束的影响。系统记录各咬合点，全局遍历结构约束图中的咬合点，局部规整各动边。用户可根据不同图形，设置适当的规整优先级及全局误差，增加了灵活性。更多还原

【Abstract】 In this paper a draft processing method based on rules is presented with graphical representation of constraints. It solves the constranit system by dynamic constraint iteration.With a overall record of bited points, it will process each element .This method is convenient,general and can process complex draft.更多还原