一种大场景Web三维注记可视化技术  

A Web 3D annotation display technique in large scenes

作　　者：周友生 倪慧珠 王杰栋 孔晖 ZHOU Yousheng;NI Huizhu;WANG Jiedong;KONG Hui(The Second Surveying and Mapping Institute of Zhejiang Province,Hangzhou 311100,China)

机构地区：[1]浙江省第二测绘院,浙江杭州311100

出　　处：《测绘通报》2020年第7期130-133,共4页Bulletin of Surveying and Mapping

摘　　要：针对目前大场景Web三维电子地图侧重模型展示、轻海量三维注记展示,不能很好地为用户提供地图语义信息的问题,本文提出了一种面向大场景Web三维的注记可视化技术,较好地实现了海量注记在三维电子地图上的立体、逐层级展示,为三维电子地图增加了明确的语义指引。基于浙江省新型基础测绘成果的三维展示试验结果表明,所提技术能够便捷地构建三维注记LOD模型,提供三维电子地图注记服务,提升三维电子地图注记效率,其研究成果可应用于天地图、自然资源空间基础信息平台、不动产登记平台等领域。Lots of researches on Web 3 D digital maps pay more attention to 3 D model displaying and despise 3 D annotation displaying,which can not provide map semantic information properly to consumers.A Web 3 D annotation display technique in the large scenes is put forward to achieve tridimensional exhibition of large amounts annotations in 3 D digital maps and provide explicit semantic guidance.3 D display experiment on Zhejiang new fundamental surveying and mapping products shows that,the technique can build 3 D annotation LOD model conveniently and provide 3 D annotation services and increase annotation efficiency.This technology can be applied to areas such as Tianditu,natural resources spatial basic information platform and real estate registration platform.

关 键 词：Web三维 注记 细节层次模型 大场景 三维电子地图 CesiumJS 

分 类 号：P208[天文地球—地图制图学与地理信息工程]