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测绘学报  2015 

道路网层次骨架控制的道路选取方法

DOI: 10.11947/j.AGCS.2015.20130787, PP. 453-461

Keywords: 制图综合,道路选取,道路层次,stroke,中介中心性

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Abstract:

提出了基于路网层次骨架控制的道路自动选取方法.首先,该方法以stroke为单位,利用中介中心性值对stroke进行层次结构划分;其次,采用结构特征识别完善道路层次骨架;第三,基于层次骨架间的连通关系建立逐层传递的stroke重要性计算模型;最后,通过该计算模型自上而下的逐层计算,得到stroke重要性,并据此完成道路网选取.采用3种典型道路网数据,对本方法与其他主要常规stroke选取方法进行对比,试验结果表明本方法不但对语义的依赖性极低,同时消除了中介中心性在评价道路重要性时对边缘道路的不利影响,在保持道路网整体结构和层次性上有较为明显的优势,可适用于各种形态的道路网选取.

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