{
  "saved_at_utc": "2026-06-23T04:46:41.524320+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Jet Engine Assembly",
      "description": "This is a detailed technical drawing of a modern jet engine, used in aircraft propulsion. The assembly includes a compressor, combustion chamber, turbine, and exhaust system, designed for high-efficiency thrust generation.",
      "material": "High-strength titanium alloys and nickel-based superalloys"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view provides a clear representation of the engine's axial compressor and turbine stages, showing the internal blade arrangements and overall diameter."
      },
      {
        "type": "Top",
        "reason": "The Top view reveals the engine's longitudinal layout, including the fan, compressor, combustion chamber, and turbine, allowing for the visualization of the entire engine's length and component alignment."
      },
      {
        "type": "Left",
        "reason": "The Left view offers a side profile of the engine, showcasing the fan inlet, core length, and exhaust nozzle, which is essential for understanding the engine's overall dimensions and spatial relationships."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view provides a 3D perspective, helping to visualize the complex internal components and their spatial arrangement, which is crucial for assembly and maintenance."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "This section cut along the Y-axis reveals the internal structure of the compressor and turbine stages, showing the blade arrangements and internal passages."
      },
      {
        "symbol": "B",
        "normal": [
          0,
          0,
          1
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "This horizontal section cut reveals the internal combustion chamber and turbine components, providing insight into the engine's internal flow paths and structural integrity."
      }
    ],
    "detail_views": [
      {
        "reference": "C",
        "base_view": "Front",
        "anchor": [
          0.0,
          0.0,
          0.0
        ],
        "radius": 100,
        "reason": "This detail view magnifies the compressor blade arrangement, highlighting the intricate design and spacing of the blades for manufacturing clarity."
      },
      {
        "reference": "D",
        "base_view": "Top",
        "anchor": [
          0.0,
          0.0,
          0.0
        ],
        "radius": 150,
        "reason": "This detail view focuses on the fan blades and their mounting, providing a clear view of the blade profile and attachment points."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 3620.4,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 2435.7,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 1158.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 2216.6,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 3620.4,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 1158.5
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 1000.0
          },
          "value_approx": 158.5,
          "placement": "below",
          "offset_index": 2,
          "tolerance": null
        }
      ],
      "Left": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 2216.6,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 2435.7,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 2216.6,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 3620.4,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Section A-A": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 10.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 1158.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Section B-B": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 10.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 1158.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Detail C": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 1000.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 1000.0
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 800.0
          },
          "value_approx": 100.0,
          "placement": "below",
          "offset_index": 2,
          "tolerance": null
        }
      ],
      "Detail D": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 1158.5,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 1158.5
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 1000.0
          },
          "value_approx": 79.25,
          "placement": "below",
          "offset_index": 2,
          "tolerance": null
        }
      ]
    }
  }
}