摘要
基于二维矢量数据的单要素资源管理方式无法满足当前自然资源管理立体化、统一化的发展需求,三维GIS的发展为自然资源数据管理与可视化提供新的方法和管理应用模式。本文提出一种面向大范围面状矢量要素转三维实体要素的数据组织与构建方法,将二维面状矢量要素与地形数据融合构建三维实体要素模型,并创建多层LOD,实现大范围场景下面状要素与地形数据有效叠加融合。
The single-element resource management method based on two-dimensional vector data cannot meet the current needs for three-dimensional and unified development of natural resource management.The development of three-dimensional GIS provides new methods and management application models for natural resource data management and visualization.This paper proposes a data organization and construction method for the conversion of large-scale area vector elements to three-dimensional entity elements.The two-dimensional area vector elements and terrain data are merged to build a three-dimensional entity element model,and a multi LODs is created.The method realizes the effective superposition and fusion of the underlying features and terrain data in a large-scale scene.
作者
刘局科
詹勇
谭涵
LIU Juke;ZHAN Yong;TAN Han(Chongqing Survey Institute,Chongqing 401120,China)
出处
《测绘通报》
CSCD
北大核心
2020年第S01期236-238,267,共4页
Bulletin of Surveying and Mapping
基金
科技部国家重点研发计划项目(2018YFB0505400课题3)
关键词
自然资源管理
面状矢量要素
三维实体要素
数据融合
natural resource management
area vector elements
three-dimensional entity elements
data fusion
