利用DEM数据重构三维矢量图

Reconstruct 3D Vector Graphics with DEM Data

对于二维的成果数据重新引入立体进行修正更新,其高程不匹配是首要问题。收集该区域的DEM数据,采用VirtuoZo全数字摄影测量系统,利用DEM数据重构三维矢量图,纠正原二维数据成果,使其高程与立体影像基本匹配,为修正更新工作正常进行奠定了基础。

Height mismatch is the first and most important problem in reintroducing three-dimension to modify and update the two-dimension data. Collecting DEM data in a certain area to reconstruct the 3D vector graph by VirtuoZo all digital photogrammetry system and modifying the 2D data to match the height and stereoscopic image, is the basement of updating work.