{
  "saved_at_utc": "2026-06-27T03:02:38.235350+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Above Knee Prosthesis Knee Joint Prototype",
      "description": "A mechanical prototype of a knee joint for an above-knee prosthetic limb, designed to simulate natural knee motion and provide structural support.",
      "material": "Stainless Steel"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view clearly shows the circular main body and the symmetrical attachment points, providing the primary reference for the overall size and shape."
      },
      {
        "type": "Top",
        "reason": "The Top view reveals the vertical assembly of the upper cylinder and the horizontal base, showing the spatial relationship between components."
      },
      {
        "type": "Left",
        "reason": "The Left view displays the side profile, including the height of the upper cylinder and the connection to the base, which is critical for understanding the assembly's depth."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view provides a 3D perspective, helping to visualize the complex geometry and spatial arrangement of the components."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          0.0
        ],
        "reason": "A section cut along the Y-axis reveals the internal bore of the main cylindrical body and the connection mechanism, which are not visible in the external views."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
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          381.0,
          -56.449
        ],
        "radius": 10,
        "reason": "This detail magnifies the small cylindrical components and their connections, which are critical for the joint's functionality."
      }
    ],
    "dimensions": {
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        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 455.9,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 669.2,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            195.0,
            0.0
          ],
          "value_approx": 358.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            365.0,
            0.0
          ],
          "value_approx": 360.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              0.0,
              195.0,
              0.0
            ],
            "radius_approx": 179.0
          },
          "circle_b": {
            "location_3d": [
              0.0,
              365.0,
              0.0
            ],
            "radius_approx": 180.0
          },
          "value_approx": 170.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 455.9,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 669.2,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            195.0,
            0.0
          ],
          "value_approx": 358.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            365.0,
            0.0
          ],
          "value_approx": 360.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
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              195.0,
              0.0
            ],
            "radius_approx": 179.0
          },
          "circle_b": {
            "location_3d": [
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              365.0,
              0.0
            ],
            "radius_approx": 180.0
          },
          "value_approx": 170.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Left": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 455.9,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 669.2,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            195.0,
            0.0
          ],
          "value_approx": 358.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            365.0,
            0.0
          ],
          "value_approx": 360.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
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              0.0
            ],
            "radius_approx": 179.0
          },
          "circle_b": {
            "location_3d": [
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              0.0
            ],
            "radius_approx": 180.0
          },
          "value_approx": 170.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 455.9,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 669.2,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            195.0,
            0.0
          ],
          "value_approx": 358.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            365.0,
            0.0
          ],
          "value_approx": 360.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
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              195.0,
              0.0
            ],
            "radius_approx": 179.0
          },
          "circle_b": {
            "location_3d": [
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              365.0,
              0.0
            ],
            "radius_approx": 180.0
          },
          "value_approx": 170.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Section A-A": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            195.0,
            0.0
          ],
          "value_approx": 358.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            365.0,
            0.0
          ],
          "value_approx": 360.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            0.0,
            280.0,
            0.0
          ],
          "value_approx": 2.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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          ],
          "value_approx": 14.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
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            381.0,
            -56.449
          ],
          "value_approx": 13.388,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
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              -56.449
            ],
            "radius_approx": 7.0
          },
          "circle_b": {
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            ],
            "radius_approx": 6.694
          },
          "value_approx": 1.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ]
    }
  }
}