{
  "saved_at_utc": "2026-05-25T06:21:21.586853+00:00",
  "stage": "stage_2_view_selection",
  "provider": "anthropic",
  "model": "claude-haiku-4-5-20251001",
  "llm_data": {
    "assembly_info": {
      "title": "Luna Hybrid VTOL UAV Fuselage Section",
      "description": "Central fuselage pod for a hybrid vertical takeoff and landing unmanned aerial vehicle, housing battery and fuel tank compartments with structural support for motor mounts and control systems. Designed for 11-hour endurance with 6kg fuel capacity and dual-battery electric propulsion.",
      "material": "Composite/aluminum structure with internal compartments"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "Primary view showing overall height, width, tapered fuselage profile, central pod geometry, and vertical structural features essential for understanding the main body shape and proportions"
      },
      {
        "type": "Top",
        "reason": "Reveals top-down footprint, width distribution, and the '8.5L' capacity marking; critical for understanding fuel/battery compartment layout and lateral symmetry"
      },
      {
        "type": "Left",
        "reason": "Shows side profile with curved fuselage contour, depth variation, and mounting bracket positions; essential for understanding the aerodynamic shape and internal cavity depth"
      },
      {
        "type": "Isometric",
        "reason": "Provides 3D spatial context showing how the tapered pod integrates with motor mounts, control linkages, and overall assembly orientation for manufacturing and assembly reference"
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          1,
          0,
          0
        ],
        "origin": [
          0.0,
          0.0,
          250.0
        ],
        "reason": "Vertical section through centerline (YZ plane at X=0) reveals internal compartment structure, wall thickness, central cavity for fuel/battery storage, and vertical load-bearing ribs"
      },
      {
        "symbol": "B",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          -34.0,
          280.0
        ],
        "reason": "Horizontal section through mid-fuselage (XZ plane at Y=-34) shows lateral wall thickness, compartment width, and internal bracing structure for structural integrity"
      }
    ],
    "detail_views": [
      {
        "reference": "C",
        "base_view": "Front",
        "anchor": [
          0.0,
          -1.6,
          470.8
        ],
        "radius": 25,
        "reason": "Magnifies top antenna/sensor mounting boss (13mm bore with 16mm flange) showing precise bore diameter and mounting interface geometry"
      },
      {
        "reference": "D",
        "base_view": "Top",
        "anchor": [
          0.0,
          82.5,
          305.6
        ],
        "radius": 30,
        "reason": "Magnifies upper fuselage connector interface showing 24mm, 30mm, and 34mm concentric flanges with precise step geometry for control system integration"
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 456,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 236,
          "placement": "above",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            -1.6,
            470.8
          ],
          "value_approx": 13,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            82.5,
            305.6
          ],
          "value_approx": 24,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            82.5,
            305.6
          ],
          "value_approx": 30,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 187,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 236,
          "placement": "above",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_width",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 188,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              103.0,
              -14.4,
              213.2
            ],
            "radius_approx": 6.5
          },
          "circle_b": {
            "location_3d": [
              -103.0,
              -14.4,
              213.2
            ],
            "radius_approx": 6.5
          },
          "value_approx": 206,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            103.0,
            -14.4,
            213.2
          ],
          "value_approx": 13,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Left": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 456,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 188,
          "placement": "above",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 250,
          "placement": "left",
          "offset_index": 2,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            -65.0,
            425.7
          ],
          "value_approx": 47,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Section A-A": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 236,
          "placement": "above",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            0.0,
            0.0,
            250.0
          ],
          "value_approx": 4.5,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 150,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            -57.8,
            284.2
          ],
          "value_approx": 297,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Section B-B": [
        {
          "type": "overall_width",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 188,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            0.0,
            -34.0,
            280.0
          ],
          "value_approx": 4.5,
          "placement": "above",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 120,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Detail C": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            -1.6,
            470.8
          ],
          "value_approx": 13,
          "tolerance": "H8",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            -1.6,
            470.8
          ],
          "value_approx": 16,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 5,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Detail D": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            82.5,
            305.6
          ],
          "value_approx": 24,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            82.5,
            305.6
          ],
          "value_approx": 30,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            97.5,
            305.6
          ],
          "value_approx": 34,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 10,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        }
      ]
    }
  }
}