基于ArcGIS及CAD确定水库数字地形建模及规划范围

3D Digital Terrain Modeling and Analysis Based on ArcGIS and Secondary Development of Auto-CAD Package in water Reservoir Engineering

文章以商丘市吴屯水库生态工程规划为例详细阐述了在地形测量数据不完整的情况下,如何通过自行构造等高线的办法补全缺失的地理信息,并对这些地理信息利用ArcGIS软件及CAD二次开发进行水库的数字地形建模,并通过分析模型确定水库的淹没范围,使规划得以顺利进行,同时也为后续设计提供了更多参考。

This paper took Wutun Reservoir Ecological Planning for example.Described in the case of lacking topographic data,how to repair the missing geographic information by way of self-structure contour.And the author built a digital terrain model based on GIS and CAD secondary development.Through the analyst of digital terrain model engineers can conclude the submerged area of reservoir.So that the plan can go on without technology obstruction,and this also provides more information for follow-up design.