用Auto LISP建立专业图形库

SETTING UP GRAPHIC DATABASE BY AUTO LISP

本文介绍在Auto CAD内建立图形库的方法。针对形文件法和图块法无法满足按系列尺寸绘制图形的要求的缺点,提出使用Auto LISP建立图形库,找到了AutoCAD从数据文件中检索数据的方法,实现了Auto LISP与dBASEⅢ的联结。按本文所述方法建立的图形库,可以象使用Auto CAD内部命令一样调用图形库中的图形,因而实用性较强。

A way to build up one's graphic database in Auto CAD is described.In view of the fact that neither the file method nor the segment method is capable of printing out drawings to scales in a serial manner,the author proposes using the auto LIST PROCESSOR(LISP)and finds how to retrieve data from the data file,and to combine Auto LISP with dBASE Ill.The database established in this man- ner offers the same access to the stored graphs as the access to the graphs using built-in commands in Auto CAD with high practicability.