In this paper, a general method for meta-graph recognition is proposed based on curve fitting and separation of line and smooth curve.

本文针对图纸矢量化中的图元识别技术，提出了系统的基于线弧分离和拟合识别方法。

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Now, the main methodology of AGD includes: numeric based method, symbol based method, rule base method and graph based method.

目前，几何自动推理的主要方法有：基于数值计算的方法、基于符号计算的方法、基于规则的方法和基于图论的方法。

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And then the control method based on weighted graph was presented.

然后提出了一种基于加权无向图的控制方法。

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