DOM与DEM数据的管理和三维可视化

Management & Three Dimensional Virtualization of the DOM & DEM Data

为了统一管理数字正射影像 (DOM)和数字高程模型 (DEM)数据 ,提出建立一个实用系统 ,该系统基于数据库技术统一管理海量的 DOM和 DEM数据。为了达到充分利用 DOM和 DEM数据的目的 ,在该系统中实现了DOM和 DEM数据叠加二维浏览、自动生成等高线、生成三维景观图、数字正射影像地形图。

To manage lost of digital orthomap(DOM)data and digital elevation model(DEM)data,this paper presents an idea of building a system based on database technologies.To make full use of these data,the system have many functions,such as 2-D viewing of DOM with DEM overlapped,automatically creating contours,creating landscape model for visualization,and creating topographic map.