摘要
单体化技术的应用对于“实景三维中国化建设”有着重要意义。目前已有单体化技术存在效率低、数据量大、属性数据更新时效性差等问题。本文结合已有矢量地形图数据,从中提取单体化要素进行单体化,提高了生产效率,并通过重采样方式简化单体化数据,实现单体化数据的轻量化;用关键字段挂接对单体化数据属性导入和更新。采用统一模型中心原点和模型区块大小的方式解决了多重模型叠加偏移问题,结合实景三维地理信息平台进行单体化数据的应用,辅助城市规划设计方案选型,为智慧城市建设奠定基础。
The application of singularization technology is of great significance to the"3D real scene Chinese construction".At present,the existing monomer technology has some problems,such as low efficiency,large data volume and poor timeliness of attribute data updating.This paper combines the existing vector topographic map data,extracts the monomer elements for monomer,improves the production efficiency,simplifies the monomer data through resampling,realizes the lightweight of the monomer data;imports and updates the monomer data properties with key fields.The central origin of the unified model and the size of the model block are used to solve the problem of multiple models superposition offset.Methods such as block size and deviation correction simultaneously realize the light weight of individualized data,improve its production efficiency,and solve the problem of multi-model stacking offset.By combining the real three-dimensional geographic information platform,it assists in the selection of urban planning and design schemes and lays the foundation for the construction of smart city.
作者
廖丽霞
童宗凯
廖水林
倪佳琦
LIAO Lixia;TONG Zongkai;LIAO Shuilin;NI Jiaqi(Zhejiang Land surveying and Planning Co.,Ltd,Hangzhou 310030,China;Zhejiang Academy of Surveying and Mapping Science and Technology,Hangzhou 310023,China;Mount Zijin Mining Zone General Safety Inspection Brigade of Shanghang County,Longyan 364201,China)
出处
《测绘与空间地理信息》
2022年第10期190-192,195,共4页
Geomatics & Spatial Information Technology
关键词
单体化
实景三维模型
模型
轻量化
monomerization
oblique photography
3D model
simplify