基于AutoCAD的三维多段线转多段线方法分析

Analysis on the Methods of Converting 3D Polylines to Polylines based on AutoCAD

Arc GIS是一个非常强大的软件,它可以很快速地将不闭合的线图形转换为一个个闭合的面图形。但是通过Arc GIS完成线转面后,原来的多段线会变成三维多段线,这改变了矢量数据的属性,导致Auto CAD或南方CASS等基于Auto CAD二次开发的软件无法进行下一步的编辑操作。本文介绍了三种利用Auto CAD2012软件将三维多段线转换成多段线的方法,最后通过比较这三种方法在使用中的分解步骤和实践操作中的响应时间和效率,本文得出了基于Auto CAD平台的C#编程的第三种方法操作最简便,操作效率最高的结论。

ArcGIS is a very powerful software, it can convert unenclosed graphics which were made of lines into closed surface graphics quickly. However, after the lines were converted to surfaces through ArcGIS, the original poly-lines would become 3D polylines, which changed the properties of the vector data, as a result, the South CASS and AutoCAD or other softwarebased on AutoCAD secondary development can’t proceed to the next editing operation. This article introduced three methods of using AutoCAD2012 software to convert 3D polylines to polylines. Finally, by comparing these three methods in decomposition steps and the response time and efficiency of the operation, it is concluded in this paper that the third method which was based on the C# programming of AutoCAD platform is the easiest and most efficient method.