AutoCAD中尺寸公差的自动标注

Automatic Indication of Dimensional Tolerance in AutoCAD

AutoCAD绘图软件为用户提供了标注尺寸公差的功能,但用户必须输入每个极限偏差的具体数值,使用很不方便。通过对AutoCAD系统中尺寸及尺寸公差标注的分析,设计并实现了1种标注尺寸公差的方法。用户只需在对话框中选择公差带代号,即可标注出对应的极限偏差数值。这种方法简单、易操作、具有广泛的适用性,对AutoCAD的推广应用和CAD技术的进一步普及具有一定的实用价值。

AutoCAD provides functions of automatic indication of dimensional tolerance. But users must input the concrete value of limits of deviation. It is not convencent to do so. By analyzing the dimensions and the indication of dimensional tolerance in this system, the article designs and implements a method to dimensional tolerance. Users only need to choose the code name for tolerance zone in the dialogue box and the value of limits of deviation is marked. This approach can be operated easily and applied widely, and has some practical value for extending the use of AutoCAD and popularizing CAD technology.