面向矢量数据高效可视化的瓦片化组织策略  

Vector Tile Organization Strategies for Efficient Map Visualization of Vector Data

作　　者：蒉露超 张一鸣[1] 占伟伟 KUI Luchao;ZHANG Yiming;ZHAN Weiwei(The 28th Research Institute of China Electronics Technology Group Corporation,Nanjing 210007,China)

机构地区：[1]中国电子科技集团公司第二十八研究所,南京210007

出　　处：《指挥信息系统与技术》2020年第3期65-69,共5页Command Information System and Technology

基　　金：装备发展部“十三五”预研课题资助项目。

摘　　要：针对现有矢量瓦片解决方案难以动态投影绘制和属性信息重复存储的问题,提出了一种几何属性解耦的矢量瓦片数据组织方法。基于经纬度相对坐标存储几何信息,利用瓦片关联策略实现几何信息和属性信息的单独和关联存储。试验结果表明,该方法能够有效支持大规模矢量数据的高效绘制,并且降低了数据存储压力。Aimed to the problems of the current vector tile solution about difficultly mapping with dy⁃namical projection transform and repeatedly storing attribute data,a vector tile data organizing method with decoupling geometric information and attribute information is proposed.The geometric informa⁃tion is stored with the relative coordinates of longitude and latitude.Adopting the tile association strat⁃egy,the geometric information and attribute information are separately and correlatedly stored.Experi⁃mental result show that the method can efficiently support the efficient mapping from large amount of vector data,and the data storing pressure is reduced.

关 键 词：矢量数据 矢量瓦片 几何信息 属性信息 地图可视化 

分 类 号：P208[天文地球—地图制图学与地理信息工程] TP319[天文地球—测绘科学与技术]