顾及制图规则的道路Snake移位模型改进  

Improvement of Snake Displacement Model for Roads Considering Cartographic Rules

作　　者：郭庆胜[1,2] 周林[1] 王琳[1] 孙雅庚 李萱[1] 

机构地区：[1]武汉大学资源与环境科学学院,湖北武汉430079 [2]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079 [3]武汉市测绘研究院,湖北武汉430022

出　　处：《武汉大学学报（信息科学版）》2017年第11期1629-1634,共6页Geomatics and Information Science of Wuhan University

基　　金：国家自然科学基金(41471384)~~

摘　　要：在地图综合中,一条道路的不同路段之间,或者两条道路之间,都有可能存在空间冲突,需要进行道路移位。目前,道路的移位方法主要以能量最小化方法为代表,但是模型参数的控制和移位传播的距离仍有待深入研究。为了有效控制道路移位,基于道路移位制图规则,利用移位传播障碍点设置、移位传播距离计算和模型参数自动调整等措施,优化道路移位的能量最小化模型。实验结果验证了所提方法的可行性和有效性。In map generalization,spatial conflicts may occur either between different sections of one single road or between two different roads.Displacement is required when such conflicts emerge.At present,the energy minimization approach is the dominant method for understanding road displacement;but model parameter control and displacement propagation need to be studied further in order to control road displacement effectively.The energy minimization model is improved by setting up obstacle points,calculating distance of displacement propagation,and adjusting model parameters automatically.These improvement measures are all guided by cartographic rules.The effectiveness and availability of this proposed method are verified by experiments.

关 键 词：地图综合 移位 道路 能量最小化 参数 

分 类 号：P283.1[天文地球—地图制图学与地理信息工程]