{
  "saved_at_utc": "2026-06-20T06:33:47.045999+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Centrifugal Nozzle Spray System for Agricultural Drone",
      "description": "A compact, high-pressure spray system designed for integration with agricultural drones to enable efficient crop treatment. The assembly features a central rotating mechanism and a flanged base for secure mounting.",
      "material": "Aluminum Alloy"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view provides the primary orthographic projection, clearly showing the overall height, the central cylindrical shaft, and the top and bottom flanges. It is essential for establishing the main dimensions and alignment."
      },
      {
        "type": "Top",
        "reason": "The Top view reveals the circular symmetry of the base flange and the arrangement of the mounting holes, which are critical for installation. It also shows the top mounting interface."
      },
      {
        "type": "Left",
        "reason": "The Left view is necessary to show the side profile of the top assembly and the side-mounted port, which is not visible in the Front or Top views. It provides a complete understanding of the part's depth and side features."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view offers a 3D perspective that helps visualize the spatial relationship between all components, aiding in assembly and orientation."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          1,
          0
        ],
        "origin": [
          0.0,
          0.0,
          -181.8
        ],
        "reason": "This vertical section along the YZ plane cuts through the central shaft and the internal bore, revealing the wall thickness and the internal channel for fluid flow, which is not visible in any orthographic view."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Top",
        "anchor": [
          0.0,
          0.0,
          0.0
        ],
        "radius": 15,
        "reason": "This detail magnifies the bolt pattern on the base flange, allowing for clear specification of the hole locations and sizes, which are critical for secure mounting."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 363.7,
          "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": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            -363.7
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            -181.8
          ],
          "value_approx": 50.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 87.0
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              -363.7
            ],
            "radius_approx": 87.0
          },
          "value_approx": 363.7,
          "placement": "left",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Top": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "bolt_pattern",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 87.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 50.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 3
        }
      ],
      "Left": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 363.7,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            -181.8
          ],
          "value_approx": 50.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Isometric": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 363.7,
          "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,
            -181.8
          ],
          "value_approx": 5.0,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            -181.8
          ],
          "value_approx": 50.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Detail B": [
        {
          "type": "bolt_pattern",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 87.0,
          "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": 10.0,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 2
        }
      ]
    }
  }
}