摘要
结构复杂的道路交叉口的地图综合既要正确表达三维空间复杂的跨越关系、分支路段通达拓扑结构、交通流量各分支差异性,又要获得图形简化的表达效果,该要素化简操作具有一定难度。对种类繁多的道路交叉口进行分析归纳,基于道路网建立典型道路交叉口模板库,并针对道路网综合过程中交叉口处的图形简化和冲突处理提出了相关模板的图形化简方法,构建了道路交叉口简化表达的图形规则。利用开源开放街道数据进行实验,结果表明,该方法有较好的可视化效果。
Map generation of complex road intersections,which is necessary to correctly express the complex three-dimensional space spanning relationships,branch road access topology,difference between the traffic flow of each branch,but also to obtain the expression of simplified graphics,have a certain degree of difficulty.This paper attempts to analyze and summarize a large variety of road intersections,build a typical road-crossing template library based on the road network,and proposes a simplified method for the template simplification and conflict handling at the intersection in the road network generation process.The graphic rules for the simplified expression of road intersections are constructed.Using open source data OSM experiments,the results show that the method has better visualization effect.
作者
王颖
艾廷华
WANG Ying;AI Tinghua(School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China)
出处
《测绘地理信息》
2018年第2期97-100,共4页
Journal of Geomatics
关键词
道路网
地图综合
可视化规则
图形简化表达
road network
map generation
visualization rules
graphically simplified expression
