大比例尺地形图数据转化DLG建库数据的方法

The Method of Converting Large Scale Topograghic Map Data to DLG Database

介绍了一种把地形图数据格式转化为标准的DLG数据库格式的作业方法。通过详细地制定在Auto-CAD软件下进行地形图数据整理的方案,并制作一些AutoCAD的二次开发程序,使数据整理工作变得规范、有序而快速。整理好的数据,各要素具有唯一性,便于提取和用程序识别。经过运行自制的批处理程序,整理好的地形图数据能够自动转到ARC/INFO软件下,并自动归层和自动赋属性,使ARC/INFO下的建库工作量大大减轻,仅仅通过较少的手工操作就可以完成地形图数据在ARC/INFO下的建库。这样作业的效率得到了明显的提高,作业的质量也能得到保证。

The article introduces a method that can transfer formatting topographic map data to DLG data.After making the scheme for arranging the topographic data by AutoCAD and making some programs due to AutoCAD,the work of arranging data came to be standard,ordered,and quick.By this way,the data is unique and easy to extract and identify.The data which is arranged by the program we made can be moving by AutoCAD automatically,and also can be attributed and arranged to the right layer.