利用NewMap API实现Web地图的地理数据可视化  

Based on the NewMap API Web front-end geographic data visualization

作　　者：路文娟[1] 李成名[1] 孙伟[2] LU Wenjuan;LI Chengming;SUN Wei(Chinese Academy of Surveying & Mapping,Beijing 100830,China;College of Geomatics,Shandong University of Science and Technology,Qingdao,Shandong 266590,China)

机构地区：[1]中国测绘科学研究院,北京100830 [2]山东科技大学测绘科学与工程学院,山东青岛266590

出　　处：《测绘科学》2019年第9期171-175,190,共6页Science of Surveying and Mapping

基　　金：国家基础测绘项目(A1705)

摘　　要：随着时空数据呈现出爆炸式增长,传统的统计图表无法充分挖掘海量数据中隐含的时空信息的问题,该文面向用户设计并构建通用专题数据可视分析系统。通过对Web前端地理数据可视化技术和Cassandra数据库进行研究,基于中国测绘科学研究院GIS所自主研发的NewMap软件,开发Web前端地理数据可视化接口,实现地理数据的时空信息在地图上的充分展示。该文以潍坊市为研究区域,分别从降雨量分析、人口综合分析专题等方面出发,通过专题数据可视化效果将时空数据的特点充分展现出来。与此同时,所采用Cassandra分布式数据库,亦可对大数据进行存储、管理、分析,在一定程度上减轻了前端地图绘制的压力,并具有良好的查询分析效率及快速的处理能力。With the explosive growth of spatio-temporal data,traditional statistical charts were not available for exploiting the hidden spatio-temporal information from massive data comprehensively.This paper designed and developed a general thematic data visual analysis system.Through the analysis of Web front-end visualization technology and Cassandra database,based on the NewMap software developed by Chinese Academy of Surveying and Mapping,the Web front-end geographic data visualization interface was developed.The spatio-temporal information of geographical data could be fully displayed on the map.In this paper,taking Weifang city as the study area,from the aspect of the precipitation and population analysis,by using the thematic data visualization technology,the characteristics of spatiotemporal data was illustrated.Furthermore,the Cassandra distributed database can store,manage and analyze big data efficiently,reduce the stress of front-end map drawing,and has good query and analysis efficiency and fast processing ability.

关 键 词：NewMap WEB 地理数据 可视化 Echarts 时空数据 

分 类 号：P208[天文地球—地图制图学与地理信息工程]