基于激光点云的真三维模型在GIS中的应用  

Application of True 3D Model Based on Laser Point Cloud in GIS

作　　者：廖中平[1,2] 蔡晨光 陈立[1] LIAO Zhongping;CAI Chenguang;CHEN Li

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410114 [2]内蒙古申科国土集团公司,内蒙古呼和浩特010020

出　　处：《地理空间信息》2020年第11期51-53,I0002,共4页Geospatial Information

基　　金：湖南省科技创新计划(重点研发计划)资助项目(2018SK2011);湖南省教育厅科研资助项目(17B004);长沙理工大学研究生科研创新资助项目(CX2017SS03)。

摘　　要：针对传统三维建模精度差、仿真度低等缺陷,首先通过三维激光扫描系统获取建筑物表面点云数据,并利用Cyclone软件进行点云预处理和三维建模;再利用Google SketcheUp对三维模型进行纹理贴图和模型数据的格式转换;然后在Visual Studio(C^#)项目中引入ArcGIS Engine,调取该模型;最终实现真三维模型的可视化、模型信息查询与语音播报等功能,为建立真三维GIS数据服务系统提供了一套可行的技术解决方案。Aiming at the defects of poor accuracy and low simulation of traditional 3 D modeling, we proposed a set of technical solution to embed true 3 D model in GIS. Firstly, we used 3 D laser scanning system to obtain the point cloud data on the surface of buildings. Secondly, we used Cyclone software to proceed point cloud preprocessing and 3 D modeling. Thirdly, we used Google SketcheUp to convert the 3 D model texture map and model data format. And then, we cited ArcGIS Engine into the Visual Studio(C#) project to retrieve the model. Finally, we realized the visualization of the true 3 D model, model information query and voice broadcast and other functions, which could provide a set of feasible technical solutions for the establishment of true 3 D GIS data service system.

关 键 词：Cyclone软件 点云 三维模型 三维GIS 语音播报 

分 类 号：P208[天文地球—地图制图学与地理信息工程]