{
  "saved_at_utc": "2026-06-20T05:24:57.926514+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Quadcopter Drone Frame",
      "description": "This is an assembled frame for a simple quadcopter drone, designed to support the central electronics and four motor-propeller assemblies.",
      "material": "Aluminum Alloy"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view clearly shows the overall layout of the drone, including the central frame, motor mount locations, and the symmetrical arrangement of the arms."
      },
      {
        "type": "Top",
        "reason": "The Top view provides a clear view of the hexagonal central plate and the attachment points for the arms, essential for understanding the plan layout."
      },
      {
        "type": "Left",
        "reason": "The Left view reveals the depth of the frame, the thickness of the arms, and the internal mounting structure, which are not visible in the Front or Top views."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view offers a 3D perspective that helps in visualizing the complete assembly and spatial relationships between components."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          0,
          1
        ],
        "origin": [
          62.34,
          13.12,
          44.22
        ],
        "reason": "The horizontal section reveals the internal wall thickness of the central plate and the internal structure of the arms, which are not visible in external views."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
          0.0,
          0.0,
          0.0
        ],
        "radius": 15,
        "reason": "This detail magnifies the motor mount area, showing the precise location and diameter of the mounting holes for the motors."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 237.3,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 172.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            62.34,
            13.12,
            44.22
          ],
          "value_approx": 100,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Top": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 237.3,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 172.0,
          "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": 100
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 100
          },
          "value_approx": 150,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Left": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 172.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 237.3,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            62.34,
            13.12,
            44.22
          ],
          "value_approx": 5,
          "placement": "leader",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Isometric": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 237.3,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 172.0,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Section A-A": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            62.34,
            13.12,
            44.22
          ],
          "value_approx": 5,
          "placement": "leader",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            62.34,
            13.12,
            44.22
          ],
          "value_approx": 100,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            0.0,
            0.0,
            0.0
          ],
          "value_approx": 100,
          "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": 100
          },
          "circle_b": {
            "location_3d": [
              0.0,
              0.0,
              0.0
            ],
            "radius_approx": 100
          },
          "value_approx": 150,
          "placement": "below",
          "offset_index": 1,
          "tolerance": null
        }
      ]
    }
  }
}