基于地理信息网络服务的矢量瓦片数据模型设计  

Design of vector tiles model based on geographic information network service

作　　者：苏旭明 任志国 赵宁 SU Xuming;REN Zhiguo;ZHAO Ning(Unit 31009,Beijing 100088,China;Star Map Press,Beijing 100088,China)

机构地区：[1]31009部队,北京100088 [2]星球地图出版社,北京100088

出　　处：《测绘科学与工程》2019年第3期56-60,78,共6页Geomatics Science and Engineering

摘　　要：矢量数据瓦片化克服了栅格瓦片无法实现用户的交互操作与数据分析的不足,被越来越多的用户广泛使用。但目前矢量数据瓦片化技术没有统一的数据模型、数据格式等相关标准,本文针对现有地理信息网络服务中矢量数据的应用现状及使用需求,介绍了全球空间瓦片模型,研究了地理网格剖分及其编码设计,确定了矢量瓦片的切分规则,设计了矢量瓦片的概念模型、逻辑模型和物理模型。这为矢量瓦片作为矢量数据的载体,实现基于矢量瓦片的矢量数据表达奠定了数据模型基础。Vector tiles sare widely used because they can overcome the shortcomings of raster tiles in user interaction and da-ta analysis.However,there are no unified standards for data model or format of the vector tiling technology.Based on the appli-cation status and requirements of vector data in geographic information network service,the global space tiles model is intro-duced,and the geographic mesh generation model and its code designing are studied.Then the segmentation rules of vector tiles are determined,and the conceptual model,logical model and physical model of vector tiles are designed.In this way,the vector tiles can be the carrier of vector data,and the data model basis for the vector data expression based on vector tiles is provided.

关 键 词：栅格瓦片 矢量传输 矢量瓦片 数据模型 金字塔模型 网格剖分 

分 类 号：P208[天文地球—地图制图学与地理信息工程]