矢量地图渲染技术研究

Research on Vector Map Rendering Technology

地图栅格瓦片具有更新周期长、地图风格固定、无法查询检索等缺点,为丰富地图风格、实现数据快速更新,采用基于WebGL的矢量地图服务渲染引擎,在客户端快速渲染矢量地图数据,实现了矢量地图数据的实时加载和渲染绘制,提高了地图显示效率,降低了系统响应时间,提供了风格多样的地图样式。主要从矢量地图数据组织与配置、矢量地图服务引擎和矢量地图前端渲染技术等方面展开研究,在“天地图·江苏”移动端已取得了应用成效。

The map grid tile has the characteristics of long update cycle,fixed map style and unable to query and retrieve.In order to enrich the map style and realize the rapid data update,we adopted the vector map service rendering engine based on WebGL to quickly render vector map data in the client terminal,which could realize the real-time loading and rendering of vector map data,improve the map display efficiency,reduce the response time of system,and provide a variety of map styles.In this paper,we mainly studied the organization and configuration of vector map data,the vector map service engine and the front-end rendering technology of vector map.This method has achieved application results in“MapWorld Jiangsu”mobile terminal.