It is a new approach to explore relief Automated Generalization, based on DEM skeleton characteristic point and line to automate generalize relief, through the extraction DEM terrain skeleton c.

基于DEM骨架特征点线进行地貌的自动综合，是通过提取DEM地形骨架特征数据来实现地貌自动综合，是对地貌自动综合新方法的探索。

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Use car's sealing strips point cloud data, it is introduced in detail which car's sealing strips section characteristic curve extraction method with developed characteristic curve extraction module.

以汽车密封条转接头管状部分点云数据为实例，详细介绍了通过开发的特征线模块进行汽车密封条截面特征线提取的方法。

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