Learning AutoLISP & Visual LISP

Learn the fundamentals of LISP for AutoCAD, so that you can start using this language to simplify monotonous tasks and ease the implementation of standardization.

Introduction

• Welcome
• Exercise files

1. LISP Formatting

• History
• Visual LISP IDE

2. LISP Functionality

• Creating a defined function
• Creating and using variables
• Getting and setting variables
• Using an if condition function
• Using a cond condition function

3. Visual LISP Introduction

• Function: vl-Load-Com
• Function: vlax-get-acad-object
• Function: vla-get-preferences
• Function: vla-get-activedocument
• Function and command: vl-cmdf

4. Working with Strings

• Function: strcase
• Function: strcat
• Function: strlen
• Function: substr
• Visual LISP methods

5. Working with Lists

• List and dotted pairs overview
• Functions: nth and length
• CDR, CAR, CADR, and more
• Function: append
• Function: subst
• Visual LISP methods

6. Getting Data From Users

• Function: getstring
• Function: getpoint
• Function: getdist
• Function: getreal
• Functions: getkword and initget
• Functions: entsel and entget
• Funtion: getfiled

7. Loops

• Function: while
• Function: repeat
• Function: foreach

8. Selection Sets

• Function: ssget
• Functions: sslength and ssname
• Selection set filters

9. Working with Geometry

• Function: polar
• Function: angle
• Function: distance
• Function: inters

10. Creating and Editing Graphic Entities

• Functions: assoc and subst
• Function: subst
• Function: entmod
• Function: entmake
• Function: entdel
• Visual LISP entity functions

11. Creating and Editing Non-Graphic Entities

• Function: tblsearch
• Function: tblobjname
• Visual LISP methods

12. Storing Data

• Function: namedobjdict
• Visual LISP dictionary functions
• Reading and writing to the registry

13. Loading LISPs and Error Trapping

• Loading a LISP file
• Using acad.lsp and acaddoc.lsp
• Error trapping

Conclusion

• Next steps