webgis地理信息系统可研报告

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4、2)Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF永泽科技WebGIS地理信息系统可行性研究报告目录§第一章WebGIS立项依据11.1WebGIS产业政策11.1.1政策引导11.1.2研发支持21.1.3技术导向31.1.4展望未来41.2WebGIS发

5、展现状61.2.1国外地理信息系统(GIS)应用发展状况61.2.2我国地理信息系统(GIS)应用发展状况81.3WebGIS技术先进性，对相关领域技术进步的推动作用101.3.1WebGIS技术先进性101.3.2信息技术(IT)对GIS的影响111.3.3互联网上的GIS的构件模型131.4WebGIS目前进展情况13§第二章WebGIS技术方案152.1WebGIS基础平台功能设计152.1.1编辑专题152.1.2图层的显示与隐藏162.1.3地图浏览操作162.1.4图层属性表172.1.5图层

6、的属性182.1.6专题的属性192.1.7坐标系统202.1.8查询系统212.1.9空间运算212.1.10线图层转换网络图层222.1.11网络分析——最短路径232.1.12缓冲分析24Selection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Sel

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