基于WebGIS的土地信息发布技术

Techniques of Web Publication for Land Information Based on WebGIS

介绍了WebGIS的几种运行模式 ,分析了网上发布图件的技术和土地信息自身的特点。网上土地信息发布的关键是相关图件的网上传输 ,且传输的图件应能够实现客户端的地图显示、放大、缩小、平移、漫游、多种选择查询及缓冲区分析、数据编辑等功能 ,要实现这一功能 ,必须实现图件的矢量传输 ,但是 ,土地信息的相关图件的数据量大 ,传输时间长。因此 ,本文对一些相关的技术作了一些研究。

In this paper, we introducs several modes of WebGIS, and analyzes techniques of Web publication for land information's map and analyzes its character. According to user's requirements, we think, the keys of land information publication in internet is map delivering, and the delivery map can be displayed, zoom out, reduced, moved, cruised, inquired buffer analyzed and can be copy-edit. If you want to do these, you must be realized vector delivery of map, but the data of land information's map is very much, and these maps delivery will be delayed. So we must realize these techniques, we have done some research for them.