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{
  "sample_id": 63,
  "geometry_type": "simple_spline",
  "geometry_parameters": {
    "type": "simple_spline",
    "n_control_points": "3",
    "max_height": 0.1
  },
  "rq_target": 0.000608786507392918,
  "rq_actual": 0.000608786507392918,
  "ra_actual": 0.0005034006137065411,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
    275,
    198
  ],
  "physical_dimensions": [
    0.187535280115129,
    0.06822847267337295
  ],
  "curvature_statistics": {
    "mean_slope": 0.0005628741834557857,
    "max_slope": 0.0013285061183285901,
    "height_range": 0.11686572634049854,
    "mean_height": -0.004666620191999725,
    "std_height": 0.031543633220413037
  },
  "generation_timestamp": "2025-11-08T02:29:53.939534",
  "correlation_length_x": 0.34820385753091543,
  "correlation_length_y": 0.02414580061001521,
  "orientation": 175.68065709903294,
  "anisotropy_ratio": 14.420886809878121,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 7,
    "perlin_persistence": 0.6777575468246212,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.30141989343815506,
    "fractal_modes": 67
  }
}