Learn AUTOCAD-AUTOLISP with Real Code Examples

Scripts are written in .lsp files and loaded into AutoCAD

Commands are defined using (defun) or (defun-c)

Interaction with drawing objects through AutoCAD entity functions

Variables and lists manage geometric and project data

Optional integration with ActiveX/VBA for extended automation

AutoLISP scripts loaded into AutoCAD session

Commands executed from command line or toolbars

Entity data accessed and modified in memory

Results rendered directly in drawing view

Optional dialogs collect user input

Function-based modular programming

Selection set and entity-centric workflow

User input handling with prompts or DCL

Batch processing for multiple drawings

Integration with external data via COM/ActiveX

Architectural drawing automation

Mechanical design batch processing

Electrical CAD schematics automation

Construction documentation generation

Civil engineering plotting and drafting

Scriptable access to AutoCAD entities and commands

Lightweight and flexible for quick automation

Integrates natively within AutoCAD environment

Support iterative and batch operations

Maintainable code using functions and modular routines

Use functions and reusable modules

Process large drawings in filtered batches

Integrate external data efficiently

Develop libraries for team-wide use

Optimize performance for complex drawings

Update older scripts to modern AutoCAD object model

Refactor code for modularity and maintainability

Replace deprecated functions with current equivalents

Test scripts across multiple AutoCAD versions

Document changes and user instructions