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Atomizer/examples/test_displacement_optimization.py

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"""
Quick Test: Displacement-Only Optimization
Tests the pipeline with only displacement extraction (which works with your OP2).
"""
from pathlib import Path
import sys
project_root = Path(__file__).parent.parent
sys.path.insert(0, str(project_root))
from optimization_engine.runner import OptimizationRunner
from optimization_engine.nx_updater import update_nx_model
from optimization_engine.result_extractors.extractors import displacement_extractor
def bracket_model_updater(design_vars: dict):
"""Update bracket model parameters."""
prt_file = project_root / "examples/bracket/Bracket.prt"
print(f"\n[MODEL UPDATE] {prt_file.name}")
for name, value in design_vars.items():
print(f" {name} = {value:.4f}")
update_nx_model(prt_file, design_vars, backup=False)
def bracket_simulation_runner() -> Path:
"""Return existing OP2 (no re-solve for now)."""
print("\n[SIMULATION] Using existing OP2")
return project_root / "examples/bracket/bracket_sim1-solution_1.op2"
if __name__ == "__main__":
print("="*60)
print("DISPLACEMENT-ONLY OPTIMIZATION TEST")
print("="*60)
config_path = project_root / "examples/bracket/optimization_config_displacement_only.json"
runner = OptimizationRunner(
config_path=config_path,
model_updater=bracket_model_updater,
simulation_runner=bracket_simulation_runner,
result_extractors={'displacement_extractor': displacement_extractor}
)
# Run 3 trials just to test
runner.config['optimization_settings']['n_trials'] = 3
print("\nRunning 3 test trials...")
print("="*60)
try:
study = runner.run(study_name="displacement_test")
print("\n" + "="*60)
print("SUCCESS! Pipeline works!")
print("="*60)
print(f"Best displacement: {study.best_value:.6f} mm")
print(f"Best parameters: {study.best_params}")
print(f"\nResults in: {runner.output_dir}")
except Exception as e:
print(f"\nERROR: {e}")
import traceback
traceback.print_exc()