基于Skyline的Web三维GIS开发与实现

发布时间：2018-04-11 22:37

本文选题：三维GIS + Skyline　；参考：《昆明理工大学》2017年硕士论文

【摘要】：与传统二维GIS相比,三维GIS具有强大的空间分析能力,能够直观的、真实的、可视化的展示空间数据信息能力;其中,三维立体、互联网络交互方向的三维GIS已经逐渐成为GIS领域最为重要的发展方向和研究热点。尤其在网络环境下实现空间数据的三维可视化也越来越受到学者们的关注,与二维数据相比,三维空间数据的数据量更大更广,其包括大量的城市模型、地形、影像、纹理、矢量数据及其属性数据等,对它们的网络发布也随之成为该领域的研究热点之一。本文以梨园水电站工区和长沙市中南勘测设计院厂区为实验区,基于Skyline平台设计并实现两个区域的Web三维地理信息系统。本文的主要工作内容包括:1、根据系统需求,阐述了构建三维GIS所需的无人机多视角影像、正射影像、DEM、纹理图片、矢量数据及属性数据的获取技术和数据处理方法。2、利用Skyline建模方法对梨园水电站工区三维场景进行构建,利用倾斜摄影三维建模技术对长沙市中南勘测院区域三维实景进行构建。对比分析两种建模方式成果,体现两种建模方式各自领域的优缺点。3、利用 TerraExplorer二次开发 COM 接口和 ActiveX 控件,通过 JavaScript脚本语言设计并实现两个区域的Web三维地理信息系统。在Internet环境下实现三维场景的操作与浏览、信息编辑与查询、空间分析及用户管理功能。4、通过TerraGate和IIS方式实现对两个区域的海量矢量数据、属性数据、模型数据和三维地形数据集的网络发布。使用户在任何地方都可在网络环境下对三维场景进行浏览与访问。
[Abstract]:Compared with traditional 2D GIS, 3D GIS has powerful spatial analysis ability, and can display spatial data directly, realistically and visually.Three dimensional GIS in the direction of Internet interaction has gradually become the most important development direction and research hotspot in the field of GIS.Especially in the network environment, the 3D visualization of spatial data is paid more and more attention by scholars. Compared with two-dimensional data, 3D spatial data has more and more data, including a large number of urban models, terrain, images, textures.The distribution of vector data and its attribute data has become one of the research hotspots in this field.Taking Liyuan Hydropower Station and Changsha Zhongnan Survey and Design Institute as the experimental area, this paper designs and implements Web 3D GIS for two regions based on Skyline platform.The main work of this paper includes: 1. According to the requirement of the system, the multi-view image, orthophoto image, texture image of UAV, orthophoto image, texture image, which are needed to construct 3D GIS, are expounded.The acquisition technology and data processing method of vector data and attribute data. Skyline modeling method is used to construct the 3D scene of Liyuan Hydropower Station.The three-dimensional real scene of Changsha Zhongnan Prospecting Institute was constructed by using three-dimensional modeling technology of oblique photography.Comparing and analyzing the results of the two modeling methods, reflecting the merits and demerits of the two modeling methods, using TerraExplorer to develop the COM interface and ActiveX control, and designing and implementing the Web 3D GIS in the two regions by JavaScript script language.Under the environment of Internet, the operation and browsing of 3D scene, information editing and querying, spatial analysis and user management are realized. The massive vector data and attribute data of the two regions are realized by means of TerraGate and IIS.Network release of model data and three-dimensional terrain data sets.Users can browse and access the 3D scene anywhere in the network environment.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P208

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