矿山巷道点云模型及其数据组织  

A point cloud model and its data organization of mine tunnel

作　　者：冯晶[1] 蒋胜平 郑坤[1] 

机构地区：[1]中国地质大学信息工程学院,武汉430074 [2]Autodesk,Inc,美国加利福尼亚州94082

出　　处：《测绘科学》2014年第5期134-138,共5页Science of Surveying and Mapping

摘　　要：针对三维矿山巷道点云数据的可视化效果问题,本文根据三维海量数据的可视化建模思想,提出基于扩展性四叉树、顾及可视化效果的点云数据多分辨率模型及其数据组织方式,详细研究了多分辨率LOD的细节选择算法;并基于VS2005和MapGIS TDE实现了利用一个点云数据图层插件对该模型进行显示,该方法能快速建模,满足三维矿山巷道点云数据的可视化要求。Regarding the visualization effect of 3Dpoint cloud data of mine tunnel,this paper proposed a multi-resolution model of massive 3Ddata and its data organization based on the extended quadtree and the consideration of visualization effect.By researching the multi-resolution LOD selection algorithm in detail,it developed a plug-in of the point cloud data layer by using Visual Studio 2005and MapGIS TDE for displaying the model.The experiments proved that this method could quickly establish the model to meet the visualization requirements of mass 3Dpoint cloud data of mine tunnel.

关 键 词：三维矿山巷道 点云数据 线性四叉树 多分辨率模型 

分 类 号：P208[天文地球—地图制图学与地理信息工程]