Antoine/Atomizer
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
8b14f6e800ab1db86efc79653da050a2ca5d203a
Atomizer/CHANGELOG.md
Anto01 8b14f6e800 feat: Add robust NX expression import system for all expression types 
Major Enhancement:
- Implemented .exp file-based expression updates via NX journal scripts
- Fixes critical issue with feature-linked expressions (e.g., hole_count)
- Supports ALL NX expression types including binary-stored ones
- Full 4D design space validation completed successfully

New Components:
1. import_expressions.py - NX journal for .exp file import
   - Uses NXOpen.ExpressionCollection.ImportFromFile()
   - Replace mode overwrites existing values
   - Automatic model update and save
   - Comprehensive error handling

2. export_expressions.py - NX journal for .exp file export
   - Exports all expressions to text format
   - Used for unit detection and verification

3. Enhanced nx_updater.py
   - New update_expressions_via_import() method
   - Automatic unit detection from .exp export
   - Creates study-variable-only .exp files
   - Replaces fragile binary .prt editing

Technical Details:
- .exp Format: [Units]name=value (e.g., [MilliMeter]beam_length=5000)
- Unitless expressions: name=value (e.g., hole_count=10)
- Robustness: Native NX functionality, no regex failures
- Performance: < 1 second per update operation

Validation:
- Simple Beam Optimization study (4D design space)
  * beam_half_core_thickness: 10-40 mm
  * beam_face_thickness: 10-40 mm
  * holes_diameter: 150-450 mm
  * hole_count: 5-15 (integer)

Results:
✅ 3-trial validation completed successfully
✅ All 4 variables update correctly in all trials
✅ Mesh adaptation verified (hole_count: 6, 15, 11 → different mesh sizes)
✅ Trial 0: 5373 CQUAD4 elements (6 holes)
✅ Trial 1: 5158 CQUAD4 + 1 CTRIA3 (15 holes)
✅ Trial 2: 5318 CQUAD4 (11 holes)

Problem Solved:
- hole_count expression was not updating with binary .prt editing
- Expression stored in feature parameter, not accessible via text regex
- Binary format prevented reliable text-based updates

Solution:
- Use NX native expression import/export
- Works for ALL expressions (text and binary-stored)
- Automatic unit handling
- Model update integrated in journal

Documentation:
- New: docs/NX_EXPRESSION_IMPORT_SYSTEM.md (comprehensive guide)
- Updated: CHANGELOG.md with Phase 3.2 progress
- Study: studies/simple_beam_optimization/ (complete example)

Files Added:
- optimization_engine/import_expressions.py
- optimization_engine/export_expressions.py
- docs/NX_EXPRESSION_IMPORT_SYSTEM.md
- studies/simple_beam_optimization/ (full study)

Files Modified:
- optimization_engine/nx_updater.py
- CHANGELOG.md

Compatibility:
- NX 2412 tested and verified
- Python 3.10+
- Works with all NX expression types

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-17 12:34:06 -05:00

122 lines
4.7 KiB
Markdown
Raw Blame History

# Changelog
All notable changes to Atomizer will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
## [Unreleased]
### Phase 3.2 - Integration & NX Enhancements (In Progress)
#### Added
- **NX Expression Import System** (2025-11-17)
- Robust .exp file-based expression updates via NX journal scripts
- Supports ALL NX expression types including binary-stored ones
- Automatic unit detection and formatting
- Fixes issue with `hole_count` and other feature-linked expressions
- Documentation: [NX_EXPRESSION_IMPORT_SYSTEM.md](docs/NX_EXPRESSION_IMPORT_SYSTEM.md)
- New journal: `import_expressions.py` for .exp file import
- Enhanced `nx_updater.py` with `update_expressions_via_import()` method
- **4D Design Space Validation** (2025-11-17)
- Validated full 4-variable optimization (beam_half_core_thickness, beam_face_thickness, holes_diameter, hole_count)
- All variables now updating correctly in optimization loop
- Mesh adaptation verified across different hole_count values
### Phase 2 - LLM Integration (Completed 85%)
- Natural language interface for optimization configuration
- Feature registry with capability catalog
- Claude skill for Atomizer navigation
- LLM workflow analyzer and extractor orchestration
- Dynamic code generation for hooks and extractors
---
## [0.2.0] - 2025-01-16
### Phase 1 - Plugin System & Infrastructure ✅
#### Added
- **Plugin Architecture**
- Hook manager with lifecycle execution at `pre_solve`, `post_solve`, and `post_extraction` points
- Plugin auto-discovery from `optimization_engine/plugins/` directory
- Priority-based hook execution
- Context passing system for hooks (output_dir, trial_number, design_variables, results)
- **Logging Infrastructure**
- Detailed per-trial logs in `optimization_results/trial_logs/`
- Complete iteration trace with timestamps
- Design variables, configuration, execution timeline
- Extracted results and constraint evaluations
- High-level optimization progress log (`optimization.log`)
- Configuration summary header
- Trial START and COMPLETE entries (one line per trial)
- Compact format for easy progress monitoring
- **Logging Plugins**
- `detailed_logger.py` - Creates detailed trial logs
- `optimization_logger.py` - Creates high-level optimization.log
- `log_solve_complete.py` - Appends solve completion to trial logs
- `log_results.py` - Appends extracted results to trial logs
- `optimization_logger_results.py` - Appends results to optimization.log
- **Project Organization**
- Studies folder structure with standardized layout
- Comprehensive studies documentation ([studies/README.md](studies/README.md))
- Model files organized in `model/` subdirectory (`.prt`, `.sim`, `.fem`)
- Intelligent path resolution system (`atomizer_paths.py`)
- Marker-based project root detection
- **Test Suite**
- `test_hooks_with_bracket.py` - Hook validation test (3 trials)
- `run_5trial_test.py` - Quick integration test (5 trials)
- `test_journal_optimization.py` - Full optimization test
#### Changed
- Renamed `examples/` folder to `studies/`
- Moved bracket example to `studies/bracket_stress_minimization/`
- Consolidated FEA files into `model/` subfolder
- Updated all test scripts to use `atomizer_paths` for imports
- Runner now passes `output_dir` to all hook contexts
#### Removed
- Obsolete test scripts from examples/ (14 files deleted)
- `optimization_logs/` and `optimization_results/` from root directory
#### Fixed
- Log files now correctly generated in study-specific `optimization_results/` folder
- Path resolution works regardless of script location
- Hooks properly registered with `register_hooks()` function
---
## [0.1.0] - 2025-01-10
### Initial Release
#### Core Features
- Optuna integration with TPE sampler
- NX journal integration for expression updates and simulation execution
- OP2 result extraction (stress, displacement)
- Study management with folder-based isolation
- Web dashboard for real-time monitoring
- Precision control (4-decimal rounding for mm/degrees/MPa)
- Crash recovery and optimization resumption
---
## Development Timeline
- **Phase 1** (✅ Completed 2025-01-16): Plugin system & hooks
- **Phase 2** (🟡 Starting): LLM interface with natural language configuration
- **Phase 3** (Planned): Dynamic code generation for custom objectives
- **Phase 4** (Planned): Intelligent analysis and surrogate quality assessment
- **Phase 5** (Planned): Automated HTML/PDF report generation
- **Phase 6** (Planned): NX MCP server with full API documentation
- **Phase 7** (Planned): Self-improving feature registry
---
**Maintainer**: Antoine Polvé (antoine@atomaste.com)
**License**: Proprietary - Atomaste © 2025
Reference in New Issue View Git Blame Copy Permalink