{
  "saved_at_utc": "2026-06-18T06:20:45.194463+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Toyota 1NZ Engine Assembly",
      "description": "This is a detailed 3D model of the Toyota 1NZ engine, a compact inline-4 cylinder engine used in various vehicles. The model captures the complex internal and external components, including the cylinder block, crankshaft, camshaft, and ancillary systems.",
      "material": "Cast Iron, Aluminum Alloy"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view provides the primary orthographic projection, clearly showing the engine's overall layout, including the cylinder block, timing belt cover, and accessory drive components. It is essential for understanding the engine's profile and external interfaces."
      },
      {
        "type": "Top",
        "reason": "The Top view reveals the arrangement of the cylinder heads, intake manifold, and exhaust manifold, which are critical for understanding the engine's internal architecture and airflow path. It is necessary to see features not visible from the front."
      },
      {
        "type": "Left",
        "reason": "The Left view shows the side profile, highlighting the engine's depth, the crankshaft, and the transmission mounting flange. It provides a unique perspective on the engine's side-mounted components and overall length."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view offers a 3D perspective that helps visualize the complex spatial relationships between all components, making it easier to understand the assembly's overall form and how parts fit together."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "A section cut along the Y-axis (normal = [0, 1, 0]) through the center of the engine reveals the internal bore of the cylinders, the crankshaft, and the connecting rod arrangement. This is crucial for understanding the engine's core mechanical function."
      },
      {
        "symbol": "B",
        "normal": [
          0,
          0,
          1
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "A horizontal section cut along the Z-axis (normal = [0, 0, 1]) at the mid-height of the engine exposes the camshaft, valve train, and the internal passages for oil and coolant. This is important for showing the internal mechanisms of the valvetrain."
      }
    ],
    "detail_views": [
      {
        "reference": "C",
        "base_view": "Front",
        "anchor": [
          11.893,
          -62.166,
          120.3
        ],
        "radius": 20,
        "reason": "This detail magnifies the main bearing bore, showing the precise diameter and location of the crankshaft journal. This is a critical feature for manufacturing and assembly."
      },
      {
        "reference": "D",
        "base_view": "Top",
        "anchor": [
          -0.022,
          -21.0,
          -0.5
        ],
        "radius": 15,
        "reason": "This detail focuses on the oil pan and the bolt pattern for the main bearing caps, which are essential for structural integrity and oil containment."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 577.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 832.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            -0.022,
            -21.0,
            -0.5
          ],
          "value_approx": 325.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              11.893,
              -62.166,
              120.3
            ],
            "radius_approx": 43.5
          },
          "circle_b": {
            "location_3d": [
              -0.022,
              -21.0,
              -0.5
            ],
            "radius_approx": 162.75
          },
          "value_approx": 150.0,
          "placement": "below",
          "offset_index": 3,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            81.995,
            -21.0,
            141.61
          ],
          "value_approx": 22.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            97.982,
            -21.0,
            142.251
          ],
          "value_approx": 10.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 5
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 577.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 832.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            -0.022,
            -21.0,
            -0.5
          ],
          "value_approx": 325.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            81.995,
            -21.0,
            141.61
          ],
          "value_approx": 22.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            97.982,
            -21.0,
            142.251
          ],
          "value_approx": 10.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            145.343,
            -21.0,
            -12.753
          ],
          "value_approx": 76.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 5
        }
      ],
      "Left": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 577.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 832.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            96.9
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 5
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 577.1,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 832.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        }
      ],
      "Section A-A": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            96.9
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 5
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 23.4,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 6
        }
      ],
      "Section B-B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 10.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 5
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 10.0,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 6
        }
      ],
      "Detail C": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            96.9
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 23.4,
          "tolerance": null,
          "placement": "leader",
          "offset_index": 4
        }
      ],
      "Detail D": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            -0.022,
            -21.0,
            -0.5
          ],
          "value_approx": 325.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            120.3
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 4
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            11.893,
            -62.166,
            205.0
          ],
          "value_approx": 112.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 5
        }
      ]
    }
  }
}