利用AutoCAD二次开发实现地形图高程点与等高线错误自动查找  

Using Secondary Development of AutoCAD to Automatically Find Errors of Elevation Points and Contour Lines in Digital Topographic Map

作　　者：刘洪 黄军胜 

机构地区：[1]广西有色勘察设计研究院,广西南宁530031 [2]广西壮族自治区水利电力设计研究院,广西南宁530023

出　　处：《测绘通报》2017年第5期100-104,共5页Bulletin of Surveying and Mapping

摘　　要：论述了数字地形图中产生高程点与等高线错误的可能原因,分析了高程点和等高线在地形图中的空间位置关系及作为判断条件的数学关系,论述了解决问题的办法和判断规则,展示了通过编制计算机程序实现找出其错误的核心代码,此研究对于减轻质检人员在检查数字地形图的高程点与等高线错误时的劳动强度和提高工作效率很有意义。This paper discusses the possible causes of the elevation point and contour errors in digital topographic map, analyzes the spatial location relationship and the mathematical relationship of the elevation point and contour in the topographic map, with the mathematical relationship working as a judgment condition. It discusses the solutions and judgment rules, and shows the realization of finding out its mistakes ＇ core codes through computer program. This research is very meaningful to reduce the labor intensity of inspection personnel while checking elevation point and contour errors in the digital topographic map so as to improve the working efficiency.

关 键 词：数字地形图 等高线 高程点 点线不符 C# 

分 类 号：P208[天文地球—地图制图学与地理信息工程]