摘要
针对B-Rep模型表达建筑物群集对象存在数据量大、更新和维护困难等问题,该文提出了一种专用于建筑物群集对象表达的改进型棱柱模型。该模型对原始棱柱模型进行改进,改进后的模型由棱柱和基底组成,且棱柱的上、下边界由一到多个表面构成。进一步提出了基于改进型棱柱模型的群集对象构建方法,该方法通过接合图生成、内部点提取和点投影生成建筑物群集对象的三维模型。试验结果表明,在不需要侧面信息情况下,改进型棱柱模型可以代替B-Rep表达群集对象,并且随着群集对象房间数的增大,比B-Rep更加节约存储空间。
In order to solve the problems of large amount of data and difficulty in updating and maintaining building cluster objects represented by B-Rep model, an improved prism model for building cluster object representation was proposed in this paper. The model was a modification of the original prism model. It consisted of a prism and footprints, and the upper and lower boundaries of the prism were composed of one or more surfaces. Furthermore, a building cluster object construction method based on the improved prism model was proposed, which generated the 3 D model of building cluster objects through jointing map making, internal point extraction and point projection. The experimental results showed that the improved prism model could replace B-Rep to represent cluster objects without the need of side information, and it could save more storage space than B-Rep as the number of cluster object rooms increases.
作者
霍志敏
史云飞
张玲玲
聂庆微
吕春光
孙华生
HUO Zhimin;SHI Yunfei;ZHANG Lingling;NIE Qingwei;LYU Chunguang;SUN Huasheeng(No.6 Geological Party,Hebei Bureau of Geology and Mineral Resources Exploration,Shijiazhuang 050080,China;Linyi University,Linyi,Shandong 276000,China;Key Laboratory of Urban Land Resources Monitoring and Simulation,Ministry of Land and Resources,Shenzhen,Guangdong 518034,China;Technology and Application Innovation Team of Resource and Environment Monitoring and Simulation,Hebei Bureau of Geology and Mineral ResourcevS Exploration,Shijiazhuang 050080,China)
出处
《测绘科学》
CSCD
北大核心
2021年第10期137-144,共8页
Science of Surveying and Mapping
基金
河北省地矿局资源环境监测仿真技术与应用创新团队资助课题项目
国土资源部城市土地资源监测与仿真重点实验室开放基金资助课题项目(KF-2018-03-034)。
