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{
  "sample_id": 73,
  "geometry_type": "simple_spline",
  "geometry_parameters": {
    "type": "simple_spline",
    "n_control_points": "3",
    "max_height": 0.1
  },
  "rq_target": 0.0005729233242559903,
  "rq_actual": 0.0005729233242559903,
  "ra_actual": 0.0004687029970046008,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
    362,
    165
  ],
  "physical_dimensions": [
    0.15443692556977287,
    0.035469188476704716
  ],
  "curvature_statistics": {
    "mean_slope": 0.00019199818432736826,
    "max_slope": 0.0004574395659484587,
    "height_range": 0.06311758768508566,
    "mean_height": 0.0315420574721936,
    "std_height": 0.01839996898987633
  },
  "generation_timestamp": "2025-11-08T02:29:55.152867",
  "correlation_length_x": 0.07503347345884676,
  "correlation_length_y": 0.010576943706379287,
  "orientation": 78.17352057035254,
  "anisotropy_ratio": 7.094060017885101,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 8,
    "perlin_persistence": 0.8154081451684374,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.44872282944056396,
    "fractal_modes": 90
  }
}