基于AutoCAD VBA的南方CASS测图系统的高程改正

Based the South CASS Mapping System of the AutoCAD VBA Elevation Corrections

在日常利用绘制好的数字地形图时,经常会遇到不同高程系统之间转换的问题。传统人工修改效率很速度慢,利用AutoCADVBA构建符合条件的选择集,再根据改正数把选择集中符合条件的实体对象统一加减同一数值很方便解决这个问题。

In daily using the good drawn digital topographic map, we often encountered the problem of conversion between different elevation system.The traditional artificial modify efficiency is very slow,while using the AutoCAD VBA to built eligible selection set,and it is convenient to solve this problem.