{
  "schema_version": 1,
  "parameters_sha256": "b81d1e97cf7d6dd148da841a2f0006420411ad9a7b6430d77ba7f76cbe1c1ffc",
  "generator_sha256": "260b3aa0bed8b13f4c98f9d2da3f2e78ab5f5174cac2eb15123ecf8451957ed0",
  "kinds": {
    "plate": {
      "rim_diameter_m": {
        "value": 0.2286,
        "status": "nominal",
        "note": "listing: 9 in maximum outer diameter"
      },
      "height_m": {
        "value": 0.04,
        "status": "nominal",
        "note": "listing: 1.6 in overall height, foot plane to rim top"
      },
      "wall_m": {
        "value": 0.0035,
        "status": "estimated",
        "note": "wheat-straw PP mouldings run 2.5-4 mm"
      },
      "floor_m": {
        "value": 0.004,
        "status": "estimated",
        "note": "floor slightly thicker than the wall"
      },
      "foot_diameter_m": {
        "value": 0.14,
        "status": "estimated",
        "note": "about 61 % of the rim; a coupe plate carries a wide foot ring"
      },
      "foot_width_m": {
        "value": 0.006,
        "status": "estimated",
        "note": "moulded ring width"
      },
      "foot_height_m": {
        "value": 0.004,
        "status": "estimated",
        "note": "recess depth under the base centre"
      },
      "side_bulge_m": {
        "value": 0.006,
        "status": "estimated",
        "note": "sagitta of the convex underside arc foot -> rim (0 = straight cone); the flat eating well is DERIVED: where the wall offset rises above the floor"
      },
      "side_rows": {
        "value": 2,
        "status": "estimated",
        "note": "collision rows along the side arc (2 -> 8 bands, 192 pieces): measured cavity intrusion 0.59 mm; 3 rows (216 pieces) would give 0.42 mm"
      },
      "grooves": {
        "value": {
          "heights_m": [],
          "depth_m": 0.0006,
          "half_width_m": 0.00125
        },
        "status": "estimated",
        "note": "no decorative grooves seen on the plate"
      },
      "mass_kg": {
        "value": 0.094625,
        "status": "measured",
        "note": "user override: plate.mass_kg=0.094625"
      }
    },
    "bowl": {
      "rim_diameter_m": {
        "value": 0.14453,
        "status": "measured",
        "note": "callipers 2026-10-29: rim outer diameter, the outer rim corner at the top (the listing's 5.8 in / 148 mm was wrong)"
      },
      "height_m": {
        "value": 0.07312,
        "status": "measured",
        "note": "callipers 2026-10-29: foot plane (the ring's base) to the rim top"
      },
      "wall_m": {
        "value": 0.0028,
        "status": "measured",
        "note": "callipers 2026-10-29: body wall; a uniform shell, the outer surface is the inner curve offset by the wall along its outward normal"
      },
      "floor_m": {
        "value": 0.003,
        "status": "estimated",
        "note": "the floor the depth scale assumes: the inner floor top foot_height + floor = 8.57 mm is the first profile point; the uniform 2.8 mm shell puts the underside at the centre at 5.77 mm"
      },
      "profile_points": {
        "value": [
          [
            0.0,
            0.00857
          ],
          [
            0.00947,
            0.00894
          ],
          [
            0.01947,
            0.01036
          ],
          [
            0.02947,
            0.01245
          ],
          [
            0.03947,
            0.01845
          ],
          [
            0.04947,
            0.02623
          ],
          [
            0.05947,
            0.04025
          ]
        ],
        "status": "measured",
        "note": "inner surface (radius, height above the foot plane) [m]: the user's 7 depth readings, 1 cm steps from the rim's inner edge read off the top of a 1 mm steel rule, scaled by depth_scale (raw readings and conversion: docs/hotec_wheatstraw_asset.md); the generator adds the rim edge (rim_diameter/2 - wall, height) and fits a PCHIP z(r) mirrored about the axis (flat centre)"
      },
      "depth_scale": {
        "value": 0.959851,
        "status": "derived",
        "note": "derived from the three heights: (73.12 - 5.57 - 3.0) / 67.25, so the floor is 3.0 mm over the measured 5.57 mm ring (the raw depths left 0.3 mm); already in profile_points, recorded here and not re-applied"
      },
      "foot_diameter_m": {
        "value": 0.06572,
        "status": "measured",
        "note": "callipers 2026-10-29: the foot ring's outer face diameter"
      },
      "foot_width_m": {
        "value": 0.00316,
        "status": "measured",
        "note": "callipers 2026-10-29: the ring's radial width (inner face at foot_diameter/2 - width = 29.70 mm)"
      },
      "foot_height_m": {
        "value": 0.00557,
        "status": "measured",
        "note": "callipers 2026-10-29: the ring's base to the body's lowest point (73.12 rim to the ring's bottom minus 67.55 rim to the base underside); enters the depth scale and the floor top; the rib runs from z = 0 up into the shell"
      },
      "side_rows": {
        "value": 4,
        "status": "estimated",
        "note": "interior collision rows on the inner curve besides the axis, the ring faces' normals and the rim, each where the curve departs most from its chord (4 -> 7 shell bands + the rib band, 192 pieces): cavity intrusion 0.61 mm by the chord check, 0.94 mm sampled on the hull faces (on the inner side a hull spans its whole 15-degree sector); 5 rows (216 pieces) give the same 0.94 mm"
      },
      "grooves": {
        "value": {
          "heights_m": [
            0.054,
            0.06,
            0.066
          ],
          "depth_m": 0.0006,
          "half_width_m": 0.00125
        },
        "status": "estimated",
        "note": "three horizontal grooves on the upper body, 6 mm pitch; visual only, collision smooth"
      },
      "mass_kg": {
        "value": 0.067375,
        "status": "measured",
        "note": "user override: bowl.mass_kg=0.067375"
      }
    },
    "cup": {
      "rim_diameter_m": {
        "value": 0.0711,
        "status": "nominal",
        "note": "listing: 2.8 in maximum width, PROVISIONAL (the listing mixes the 20-pack fluted cup and the 24-pack ringed cup)"
      },
      "height_m": {
        "value": 0.1049,
        "status": "nominal",
        "note": "listing: 4.13 in, PROVISIONAL"
      },
      "wall_m": {
        "value": 0.0025,
        "status": "estimated",
        "note": "cups are moulded thinner than plates"
      },
      "floor_m": {
        "value": 0.004,
        "status": "estimated",
        "note": ""
      },
      "base_diameter_m": {
        "value": 0.056,
        "status": "estimated",
        "note": "about 79 % of the rim: the mild taper seen in the photos"
      },
      "foot_width_m": {
        "value": 0.004,
        "status": "estimated",
        "note": "base ring width"
      },
      "foot_height_m": {
        "value": 0.002,
        "status": "estimated",
        "note": "shallow recess under the base"
      },
      "flutes": {
        "value": {
          "count": 12,
          "shape": "facet",
          "depth_m": 0.0006,
          "fade_z_m": [
            0.012,
            0.02,
            0.09,
            0.098
          ]
        },
        "status": "estimated",
        "note": "vertical facets of the original cup; count and depth to be measured; count must divide the 96-vertex ring; outer surface only"
      },
      "rings": {
        "value": {
          "heights_m": [],
          "depth_m": 0.0006,
          "half_width_m": 0.00125
        },
        "status": "estimated",
        "note": "the ringed-cup alternative: set heights_m to e.g. [0.030, 0.050, 0.070] and flutes.count to 0"
      },
      "mass_kg": {
        "value": 0.0595,
        "status": "measured",
        "note": "user override: cup.mass_kg=0.0595"
      }
    }
  },
  "measurements_requested": [
    "brimful water mass of one bowl and one cup (kitchen scale, +-1 g, water at ~20 C: 1 g ~ 1 mL)",
    "rim outer diameter, foot/base outer diameter and overall height of each kind (calipers or ruler)",
    "wall thickness at the rim and floor thickness (calipers)",
    "cup: number of vertical facets (or rings) and their depth; whether facets reach the rim",
    "bowl: heights of the three grooves above the foot plane",
    "which pack the cup belongs to (20-pack fluted or 24-pack ringed)",
    "mass of each piece (measured 2026-09-22 as 8-piece totals; authored as physics:mass via --set kind.mass_kg)"
  ],
  "capacity": {
    "plate": null,
    "bowl": {
      "rim_z_m": 0.07312,
      "headspace_z_m": 0.06812,
      "brimful_ml": 649.0372621268237,
      "brimful_us_floz": 21.946560715898443,
      "headspace_ml": 574.5386281412352,
      "mesh_brimful_ml": 648.5739831084022,
      "mesh_over_polyline": 0.9992862058229086,
      "polygon_area_factor": 0.9992862058229084,
      "method": "pi * integral r_in(z)^2 dz of the delivered inner polyline from the cavity floor to the lowest rim point (temporary horizontal closure; asset not capped); mesh cross-check = signed volume of the inner surface closed by a fan at the rim",
      "advertised_ml": 768.9117686249999,
      "advertised_us_floz": 25.999999999999996,
      "difference_ml": -119.87450649817617,
      "difference_pct": -15.59015109269829
    },
    "cup": {
      "rim_z_m": 0.1049,
      "headspace_z_m": 0.09989999999999999,
      "brimful_ml": 282.8328549552714,
      "brimful_us_floz": 9.563716578284614,
      "headspace_ml": 265.71601078674314,
      "mesh_brimful_ml": 282.6309705103141,
      "mesh_over_polyline": 0.9992862058229083,
      "polygon_area_factor": 0.9992862058229084,
      "method": "pi * integral r_in(z)^2 dz of the delivered inner polyline from the cavity floor to the lowest rim point (temporary horizontal closure; asset not capped); mesh cross-check = signed volume of the inner surface closed by a fan at the rim",
      "advertised_ml": 354.88235475,
      "advertised_us_floz": 12.0,
      "difference_ml": -72.0494997947286,
      "difference_pct": -20.302361847628212
    }
  },
  "sensitivity": {
    "plate": [],
    "bowl": [
      {
        "wall_m": 0.0018,
        "foot_diameter_m": 0.05572,
        "brimful_ml": 655.9684542886183
      },
      {
        "wall_m": 0.0018,
        "foot_diameter_m": 0.06572,
        "brimful_ml": 655.9728471650762
      },
      {
        "wall_m": 0.0018,
        "foot_diameter_m": 0.07572,
        "brimful_ml": 655.9710881708972
      },
      {
        "wall_m": 0.0028,
        "foot_diameter_m": 0.05572,
        "brimful_ml": 649.0312175773755
      },
      {
        "wall_m": 0.0028,
        "foot_diameter_m": 0.06572,
        "brimful_ml": 649.0372621268237
      },
      {
        "wall_m": 0.0028,
        "foot_diameter_m": 0.07572,
        "brimful_ml": 649.037908326807
      },
      {
        "wall_m": 0.0038,
        "foot_diameter_m": 0.05572,
        "brimful_ml": 642.0729028367343
      },
      {
        "wall_m": 0.0038,
        "foot_diameter_m": 0.06572,
        "brimful_ml": 642.0810573154405
      },
      {
        "wall_m": 0.0038,
        "foot_diameter_m": 0.07572,
        "brimful_ml": 642.0822429456761
      }
    ],
    "cup": [
      {
        "wall_m": 0.0015,
        "base_diameter_m": 0.046,
        "brimful_ml": 258.4388522411851
      },
      {
        "wall_m": 0.0015,
        "base_diameter_m": 0.056,
        "brimful_ml": 301.5557483699163
      },
      {
        "wall_m": 0.0015,
        "base_diameter_m": 0.066,
        "brimful_ml": 349.5512678813714
      },
      {
        "wall_m": 0.0025,
        "base_diameter_m": 0.046,
        "brimful_ml": 241.3722666684001
      },
      {
        "wall_m": 0.0025,
        "base_diameter_m": 0.056,
        "brimful_ml": 282.8328549552714
      },
      {
        "wall_m": 0.0025,
        "base_diameter_m": 0.066,
        "brimful_ml": 329.11143925354605
      },
      {
        "wall_m": 0.0035,
        "base_diameter_m": 0.046,
        "brimful_ml": 224.90949491120722
      },
      {
        "wall_m": 0.0035,
        "base_diameter_m": 0.056,
        "brimful_ml": 264.7256918412804
      },
      {
        "wall_m": 0.0035,
        "base_diameter_m": 0.066,
        "brimful_ml": 309.3022513752946
      }
    ]
  },
  "checks": {
    "plate": {
      "profile": {
        "simple_polygon": true,
        "polygon_crossings": 0,
        "inner_z_monotone": true,
        "min_wall_m": 0.003499779115352699,
        "min_wall_ok": true,
        "rim_flat_m": 0.0010499999999999954,
        "rim_flat_ok": true
      },
      "mesh": {
        "closed_and_oriented": true,
        "unit_normals": true,
        "min_face_area_m2": 9.381313778810852e-07,
        "material_volume_ml": 206.65463718324625,
        "points": 8642,
        "triangles": 17280
      },
      "collision": {
        "cavity_probes_open": true,
        "axis_open": true,
        "mid_radius_open": true,
        "foot_solid": true,
        "floor_solid": true,
        "max_cavity_intrusion_m": 0.00059054604753281,
        "intrusion_ok": true,
        "min_piece_volume_m3": 8.144183095406643e-08,
        "pieces": 192,
        "max_collider_radius_m": 0.11430000000053404,
        "crest_radius_m": 0.11430000000000001,
        "no_protrusion": true
      },
      "dimensions": {
        "target_size_m": [
          0.2286,
          0.2286,
          0.04
        ],
        "actual_size_m": [
          0.22860000000000003,
          0.22860000000000003,
          0.040000000000000015
        ],
        "size_error_m": [
          2.7755575615628914e-17,
          2.7755575615628914e-17,
          1.3877787807814457e-17
        ],
        "min_z_m": -1.3877787807814457e-17,
        "ok": true
      },
      "all_ok": true
    },
    "bowl": {
      "profile": {
        "simple_polygon": true,
        "polygon_crossings": 0,
        "inner_z_monotone": true,
        "min_wall_m": 0.002222381631723583,
        "min_wall_ok": true,
        "rim_flat_m": 0.002799999999999997,
        "rim_flat_ok": true
      },
      "mesh": {
        "closed_and_oriented": true,
        "unit_normals": true,
        "min_face_area_m2": 3.760278917610129e-07,
        "material_volume_ml": 89.53893006480381,
        "points": 11330,
        "triangles": 22656
      },
      "collision": {
        "cavity_probes_open": true,
        "axis_open": true,
        "mid_radius_open": true,
        "foot_solid": true,
        "floor_solid": true,
        "max_cavity_intrusion_m": 0.0006117476926037482,
        "intrusion_ok": true,
        "min_piece_volume_m3": 5.1841413226429175e-08,
        "pieces": 192,
        "max_collider_radius_m": 0.07226500000012662,
        "crest_radius_m": 0.072265,
        "no_protrusion": true
      },
      "dimensions": {
        "target_size_m": [
          0.14453,
          0.14453,
          0.07312
        ],
        "actual_size_m": [
          0.14453,
          0.14453,
          0.07312
        ],
        "size_error_m": [
          0.0,
          0.0,
          0.0
        ],
        "min_z_m": 0.0,
        "ok": true
      },
      "all_ok": true
    },
    "cup": {
      "profile": {
        "simple_polygon": true,
        "polygon_crossings": 0,
        "inner_z_monotone": true,
        "min_wall_m": 0.0024999999999999988,
        "min_wall_ok": true,
        "rim_flat_m": 0.0007500000000000007,
        "rim_flat_ok": true
      },
      "mesh": {
        "closed_and_oriented": true,
        "unit_normals": true,
        "min_face_area_m2": 1.9821347971600218e-07,
        "material_volume_ml": 54.94290984730846,
        "points": 9218,
        "triangles": 18432
      },
      "collision": {
        "cavity_probes_open": true,
        "axis_open": true,
        "mid_radius_open": true,
        "foot_solid": true,
        "floor_solid": true,
        "max_cavity_intrusion_m": 7.064235046341147e-05,
        "intrusion_ok": true,
        "min_piece_volume_m3": 1.8639778006154643e-08,
        "pieces": 168,
        "max_collider_radius_m": 0.03555000000040115,
        "crest_radius_m": 0.03555,
        "no_protrusion": true
      },
      "dimensions": {
        "target_size_m": [
          0.0711,
          0.0711,
          0.1049
        ],
        "actual_size_m": [
          0.0711,
          0.0711,
          0.1049
        ],
        "size_error_m": [
          0.0,
          0.0,
          0.0
        ],
        "min_z_m": 0.0,
        "ok": true
      },
      "all_ok": true
    }
  }
}