该算法基于点簇对约束网络图进行归约，求得归约序列然后重构几何模型，具有求解速度快、可靠性高、应用范围广等优点。
The reduction is carried out by using geometric constraint graph based on the point clusters. Then the sequence of reduction is computed and the geometric model is rebuilded.
本文提出了一种基于图结构描述的二维图形几何约束模型的建立及存储方法。
In this paper, a method to build geometric constraint model of 2 dimensional drawing based on undirected graph is presented.
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