CAD二次开发在轮胎胎侧字样图设计中的应用

以一个子午线胎轮胎胎侧字样图中几个类型图形元素的排列为例，介绍在AutoCAD 2012环境下，利用VB.net语言使用AutoCAD .NET API以及特定的算法编写计算机程序，让设计人员如同使用常规CAD命令一样，通过交互式的方式完成将水平字样图图形元素排列到特定弧线上的方法。通过此方法可以使设计更加规范，提高工作效率，降低设计人员的工作强度。

Application of CAD Secondary Development on Tire Sidewall Pattern Design

Just take an example for a drawing of radial tire sidewall pattern,which has arranged several types of graphic elements. This article introduces how to use VB language and Autocad.NET.API to write computer programs with specific algorithms in the Autocad 2012 environment.It can help the designer align the level sidewall drawing elements in particular arc through the interactive way just as using the regular CAD command.By using this method, it can make the design work more normative,and improve the working efficiency,and lighten the task intensity for designers.