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基于矢量瓦片技术的Web电子海图优化方法
范梦琪, 宋伟东, 郑人维, 何欢
辽宁工程技术大学
摘要:
传统的基于栅格瓦片技术生产的Web电子海图虽解决了跨浏览器显示的问题,但其显示速度、渲染效果及交互能力仍无法满足现在用户的需求。为了实现Web电子海图的大规模应用,针对栅格瓦片技术支持的下电子海图中存在的缺陷,提出基于开源地图服器Geoserver与地图可视化JS库Leaflet的矢量瓦片技术优化方案,包括海图数据预处理、矢量切片的制作、矢量瓦片数据多样式显示及矢量瓦片数据要素查询等,通过在实验室海洋信息展示平台中的验证与测试,实现了矢量电子海图数据在Web页面上的多样式灵活显示及交互功能,证实了优化方案的可行性及高效性,整体提升了Web海图服务的效率。
关键词:  矢量瓦片  电子海图  Geoserver  GeoWebCache  Leaflet
DOI:10.11759/hykx20200330001
分类号:P208.2 P209
基金项目:
Electronic Chart Optimized Method Based on Vector Tiles Technology
FAN Mengqi, Song Weidong, ZHENG Renwei, HE Huan
Liaoning Technical University
Abstract:
Although traditional electronic charts based on grid tile technology solve the problem of cross-browser display, its display speed, rendering effect and interactive capabilities still cannot meet the needs of current users. Therefore, in order to achieve large-scale application of Web electronic charts and make up for defects in lower electronic charts supported by grid tile technology, this paper proposes a vector tile technology optimization scheme based on the open source Geoserver( a map server) and Leaflet(a map visualization JS library). It includes chart data preprocessing, vector slice production, vector tile data multi-style display, and vector tile data element query. Through verification and testing in the laboratory marine information display platform, the scheme has realized the multi-style flexible display and interaction of vector electronic chart data on the web page, confirmed the feasibility and efficiency of the optimization scheme and improved the overall efficiency of the web chart service.
Key words:  vector tile  electronic chart  Geoserver  GeoWebCache  Leaflet
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