The program of secondary development are installed and processed automatically based on VisualLISP make use of the third software Inno Setup was introduced. The structure of AutoCAD registry was analyzed. The system variables were ascertained in registry. It analyzed Inno Setup script and customized the program script by VisualLISP in AutoCAD. It Provided a method for user to development installation procedure with VisualLISP.

Using the order “Wipeout” in AutoCAD to set up a graphic symbol database in chemical engineering equipment with a two dimension graphs conceal function. The method for established the hidden boundaries was introduced, and the hidden problem of non-closed boundary graphic symbol was resolved. Compare the method with the usually breaks in on lines to set up a graphic symbol database in chemical engineering equipment, It does not affect graphic edit again because that is not necessary to breaks in on lines. The method is more efficiently, and the program was written by AutoLISP in AutoCAD.

 

 

Introduced a new method to do parameter two dimension assemblage conceal with Wipeout in AutoCAD2004 or hereinbefore. By disperse scatter to dispose circle and arc, define hidden border line, define anonymous block graph, two dimension assemblage conceal with Wipeout was achieved. Compare with the methods of Boundary and Shademode to conceal, it don't affect to edit graph, and make use much simple, even achieve instant to conceal. It was realized by VisualLISP in AutoCAD.

 

AutoCAD is an open computer aided design system. The system running environment is set through its system variables. When users need exploiting the system, some related system variables in application program should be set under the necessity of applications. In fact, it's difficult for users to master the commonly used system variables. By studying AutoCAD system variables, a technique of automatic tracking system variables in AutoCAD2006 is put forward, and a Visual LISP program of automatic tracking system variables was written. The experiment shows that the program can track all system variables in AutoCAD2006. The resource codes of Visual LISP were given, and its principle and usage were described in details. A applied tool was provided for AutoCAD exploitation users.