The result of this method is content to contour line matching by building variant feature quality, constructing data structure, dealing with matching process's detail.
该方法通过提取曲线的相对不变特征量，构建数据结构，细致地处理匹配过程的细节，对轮廓曲线的部分匹配有着较为满意的匹配效果。
A new strategy of constructing and managing the parametric model is used in used in this method. It extends usual graphics data structure to describe geometric constraint.
该方法引入了建立和管理参数化模型的策略，通过扩展一般的图形数据结构统一表示几何约束。
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