SuperMap 3D Designer关键技术及应用

三维数据采集技术及其在房产、建筑、水利、电力、交通等行业的不断发展和深入应用,对三维地理信息系统提出了新的挑战,三维空间信息在GIS平台中不再只停留在"看一看"的阶段,而需要从数据接入、处理、渲染到分析结果的输出,形成完整的闭环,为相关行业应用提供坚实的技术基础,为管理和决策提供可靠依据.本文以SuperMap GIS平台中三维地理设计(3D Designer)为基础,介绍多源异构的三维空间数据在地理信息平台中处理和应用的关键技术.首先,介绍了多源异构三维空间数据的主要来源和主要特征;然后重点阐述空间数据在三维地理信息平台中处理的和应用的难点及关键技术,包括采用快速建模方法解决传统二维数据资源在三维地理信息平台中的应用问题,采用实例化技术提升BIM数据的渲染性能问题,采用空间数据处理和分析关键算法解决模型和大场景的精确匹配问题等;最后,介绍了SuperMap 3 D Designer的主要应用方式.

Research on 3 D GIS Data Processing Based on SuperMap 3D Designer

3D data acquisition technology and its development put forward the new challenge to 3DGeographic Information System. 3D Spatial information in the GIS platform is not only stayed in a"look" stage, but also to be analysis to provide reliable information for management and decision making. Based on 3D Designer Component in SuperMap GIS platform, this paper introduces the key points of processing and analyzing the multi–source 3D spatial data. First of all, this paper introduces multi-sourced spatial data and their characteristics;and then focuses on the difficulties and key technology of spatial data processing in 3D geographic information platform, including the use of quick-modeling method based on the traditional two-dimensional data , using instanced 3D technolo-gy to enhance the performance of BIM data, using spatial data processing and algorithms to solve the model matching problems in the scene;finally, introduces some applications based on SuperMap 3D Designer.