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{
  "sample_id": 174,
  "geometry_type": "simple_spline",
  "geometry_parameters": {
    "type": "simple_spline",
    "n_control_points": "3",
    "max_height": 0.1
  },
  "rq_target": 0.0028410550017461665,
  "rq_actual": 0.002841055001746166,
  "ra_actual": 0.0023168744145845785,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
    302,
    148
  ],
  "physical_dimensions": [
    0.15051962218637419,
    0.04005200268252146
  ],
  "curvature_statistics": {
    "mean_slope": 0.0006387601489083083,
    "max_slope": 0.0014354465299964494,
    "height_range": 0.1255407138135472,
    "mean_height": 0.03198106289996095,
    "std_height": 0.03291066132428444
  },
  "generation_timestamp": "2025-11-08T02:42:12.693689",
  "correlation_length_x": 0.032415208189051956,
  "correlation_length_y": 0.004653054439123635,
  "orientation": 0.9019570514373076,
  "anisotropy_ratio": 6.966436480196672,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.7930238234387058,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.4779199096872465,
    "fractal_modes": 100
  }
}