基于矢量切片的河南省地震构造查询系统

Seismic structure query system of Henan Province based on vector slice

为促进河南省地震构造填图成果更好地服务于社会和相关地震地质研究,在填图数据深入加工处理基础上,设计并开发河南省地震构造查询系统。针对传统Web GIS系统加载地图慢、响应时间长的问题,在系统建设中引入矢量切片的思想,对矢量数据进行重新组织,结合HTML5 Canvas技术,对地图数据进行渲染,最终实现矢量数据在浏览器上地快速显示。同时考虑用户需要,实现地震、第四纪活动断层和断层剖面等数据的查询、显示与管理等综合应用。

In order to promote the better application of seismic tectonic mapping in public service and relative research, the seismic structure query system of Henan Province designed and developed based on the deep processing of mapping data. Aiming at the problem of slow loading map and long response time in traditional Web GIS system, in the construction of this system, the vector data is reorganized by introducing the idea of vector slice. Combined with HTML5 Canvas technology, the vector data can finally display on the browser quickly. Considering the need of the users, the comprehensive application of data query, display and management of destructive earthquakes, quaternary active faults and fault sections is realized.