关于AutoCAD参数化建模中标注约束运行机制的猜想

Assumption on Dimension Constraint Operation Mechanismof AutoCAD Parametric Modeling

摘要: ObjectARX是一个能快速访问AutoCAD图形数据库的DLL，新版CAD自带的参数化功能也是利用ObjectARX对其进行二次开发实现的。这篇文章着重分析了CAD参数化功能中标注约束可能的运行机制。

Abstract: ObjectARX is a DLL that can make a quick access to AutoCAD Graphic database. The parametric function of the new version AutoCAD is also realized by ObjectARX redevelopment. This paper mainly analyses possible dimension constraint operation mechanism of CAD parametric function.