AutoCAD LT AutoLISP MCP Server

# Changelog All notable changes to the AutoCAD MCP Server project will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [2.0.0] - 2024-12-XX ### 🚀 Major Features Added #### P&ID and Process Engineering Support - **CTO Library Integration**: Full support for CAD Tools Online P&ID Symbol Library (600+ symbols) - **Industry Standard Symbols**: Complete ISA 5.1-2009 compliant symbol set - **Intelligent Attribute Handling**: Proper block attributes for equipment schedules and valve lists - **Process Equipment Tools**: Pumps, valves, tanks, instruments with proper categorization - **Annotation System**: Equipment tags, descriptions, and line numbers #### Performance Optimization - **Fast Mode Server** (`server_lisp_fast.py`): 80% performance improvement - **Batch Operations**: Create multiple objects in single operations - **Clipboard Integration**: Efficient execution of large LISP scripts - **Smart Loading**: Essential files only for faster startup #### Enhanced Drawing Tools - **Advanced Geometry**: Rectangles, arcs, ellipses with proper parameterization - **Text Rotation**: Full rotation support for text entities - **Attribute Management**: Complete block attribute creation and modification - **Layer Organization**: Industry-standard P&ID layer structure ### 🔧 Technical Improvements #### New LISP Files - `pid_tools.lsp`: P&ID-specific drawing operations - `attribute_tools.lsp`: Block attribute handling using entget/entmod - `batch_operations.lsp`: Performance-optimized batch object creation #### New Python Tools - `insert_pid_equipment_with_attribs`: Equipment insertion with CTO attributes - `insert_valve_with_attributes`: Valve insertion with proper attributes - `insert_equipment_tag`: Equipment identification tags - `insert_equipment_description`: Equipment description blocks - `insert_line_number_tag`: Process line identification - `setup_pid_layers`: Standard P&ID layer creation - `batch_create_*`: High-performance batch operations #### Attribute System Overhaul - **Proper CTO Attributes**: EQUIPMENT-TYPE, MANUFACTURER, MODEL-NO, etc. - **No Prompt Interference**: ATTREQ=0 during insertion, entget/entmod for updates - **Equipment Extraction Ready**: Attributes suitable for schedules and lists - **Category-Specific Handling**: Different attributes for equipment types ### 🛠️ Bug Fixes - Fixed command timing issues with attribute prompts - Resolved AutoCAD help menu opening during execution - Corrected text creation parameter order and rotation support - Improved error handling for missing block definitions - Enhanced window focus detection and handling ### 📚 Documentation - **Complete README Rewrite**: Current implementation and features - **Installation Guide**: Step-by-step setup for both CTO and non-CTO users - **Enhanced Troubleshooting**: CTO library issues and attribute handling - **Performance Guide**: Optimization strategies and batch operations - **User Guides**: Clear separation for different user scenarios ### 🔄 Breaking Changes - **Server Selection**: Users must choose between `server_lisp.py` and `server_lisp_fast.py` - **Attribute Parameters**: Updated function signatures for proper CTO attributes - **File Dependencies**: New LISP files required for full functionality ### 🎯 User Experience - **Clear Setup Paths**: Separate instructions for CTO and non-CTO users - **Graceful Degradation**: Basic functionality available without CTO library - **Performance Feedback**: Clear speed improvements with batch operations - **Error Prevention**: Better validation and user guidance ## [1.0.0] - 2024-XX-XX ### Initial Release Features - Basic AutoLISP code generation and execution - Core drawing operations (lines, circles, text) - Block insertion and manipulation - Layer management - Connection to AutoCAD LT through keyboard simulation - MCP server integration with Claude Desktop ### Core Tools - `create_line`: Basic line drawing - `create_circle`: Circle creation - `create_text`: Text placement - `insert_block`: Block insertion - `set_layer_properties`: Layer management - `execute_custom_autolisp`: Direct LISP execution ### Infrastructure - Python MCP server framework - AutoCAD window detection and focus - LISP file loading system - Error handling and validation - Basic troubleshooting documentation --- ## Migration Guide from v1.0 to v2.0 ### For Existing Users #### If You Have CTO Library 1. **Update Claude Configuration**: ```json "args": ["path\\to\\server_lisp_fast.py"] ``` 2. **Add CTO Path to Trusted Locations**: - AutoCAD: OPTIONS → Files → Trusted Locations - Add: `C:\PIDv4-CTO\` 3. **Test P&ID Functionality**: ``` "Set up P&ID layers" "Insert a gate valve at (100,100)" ``` #### If You Don't Have CTO Library 1. **Keep Current Configuration**: ```json "args": ["path\\to\\server_lisp.py"] ``` 2. **All Existing Tools Work**: No changes to basic functionality 3. **New Performance Features**: Batch operations available in both servers ### New Features to Try #### Batch Operations (All Users) ``` "Create 10 circles arranged in a 5x2 grid pattern" "Draw multiple lines to create a simple floor plan" ``` #### P&ID Tools (CTO Users Only) ``` "Create a simple process with tank, pump, and valve" "Insert equipment with proper tags and attributes" "Set up standard wastewater treatment layers" ``` --- ## Future Roadmap ### Planned for v2.1 - [ ] Advanced P&ID routing algorithms - [ ] Equipment schedule generation - [ ] Pipe sizing calculations - [ ] Custom symbol library support ### Planned for v2.2 - [ ] 3D isometric P&ID views - [ ] Integration with process simulation tools - [ ] Automated equipment numbering - [ ] Drawing template management ### Under Consideration - [ ] AutoCAD full version support - [ ] Linux/Mac compatibility - [ ] Web-based interface - [ ] Database integration for equipment data