The Research And Implementation Of Integrated WebGL Web Map Engine Technology

Modern electronic map developing at the points of the information quantity,map display mode,multiple device support,visual effects,and interaction.In the present electronic map service,2D map service can bear rich information then 3D map apparently,the traditional desktop client support for multiterminal unfriendly,based on the new technology research and development of the map engine can be urgent.Browser-based technology can be friendly support multi-terminal devices,WebGL,websocket the emergence of these new technologies make it possible for the implementation of new web map engine.In this paper,with the summary of the existing public map engine products all over the world,and collecting and analysising their respective advantages and disadvantages,we designed a professional analysis in GIS field,real-time and efficient,strong scalability,can be a local area network deployment,safe and reliable map engine which focus on project development process in the understanding of map engine requirements and analysis.Engine by WelGL technology mass vector data,and on the server using pre-rendered NodeJs,improve the loading speed.Among them,there are three difficult points:Web front architecture design,MapServer server architecture design and high performance based on WebGL map renderer.These difficulties had been solved by analyzed the existing professional technical route map software,refer to the map software architecture design and algorithm improvement solution,and validated it by two project in performance and function.