{
  "saved_at_utc": "2026-07-04T10:33:03.676530+00:00",
  "stage": "stage_2_view_selection",
  "provider": "openrouter",
  "model": "qwen/qwen3-vl-30b-a3b-instruct",
  "llm_data": {
    "assembly_info": {
      "title": "Windsurf Board",
      "description": "A windsurf board designed for recreational and performance sailing, featuring a streamlined shape with integrated foot straps and a fin box for stability and maneuverability.",
      "material": "Polyethylene"
    },
    "selected_views": [
      {
        "type": "Front",
        "reason": "The Front view clearly shows the top surface of the board, including the foot strap outlines and the overall shape, which is essential for understanding the board's layout."
      },
      {
        "type": "Top",
        "reason": "The Top view provides a full profile of the board's length and width, revealing the fin box placement and the overall elongated shape necessary for manufacturing."
      },
      {
        "type": "Left",
        "reason": "The Left view offers a side profile that illustrates the board's thickness and curvature, which is critical for understanding its hydrodynamic properties."
      },
      {
        "type": "Isometric",
        "reason": "The Isometric view gives a comprehensive 3D perspective of the board, helping to visualize its form and spatial relationships between features."
      }
    ],
    "section_views": [
      {
        "symbol": "A",
        "normal": [
          0,
          0,
          1
        ],
        "origin": [
          136.22,
          197.9,
          1456.0
        ],
        "reason": "The section cut reveals the internal thickness of the board and the placement of the fin box, which are not visible in the external views."
      }
    ],
    "detail_views": [
      {
        "reference": "B",
        "base_view": "Front",
        "anchor": [
          136.22,
          197.9,
          1456.0
        ],
        "radius": 10,
        "reason": "The detail view magnifies the foot strap area, highlighting the precise shape and attachment points for accurate manufacturing."
      }
    ],
    "dimensions": {
      "Front": [
        {
          "type": "overall_width",
          "dim_type": "DistanceX",
          "match_strategy": "extreme_vertices_x",
          "value_approx": 600.4,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            136.22,
            197.9,
            1456.0
          ],
          "value_approx": 100,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Top": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 2305.9,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "center_distance",
          "dim_type": "Distance",
          "match_strategy": "between_circles",
          "circle_a": {
            "location_3d": [
              136.22,
              197.9,
              1456.0
            ],
            "radius_approx": 100
          },
          "circle_b": {
            "location_3d": [
              136.22,
              197.9,
              1456.0
            ],
            "radius_approx": 100
          },
          "value_approx": 500,
          "placement": "leader",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Left": [
        {
          "type": "overall_height",
          "dim_type": "DistanceY",
          "match_strategy": "extreme_vertices_y",
          "value_approx": 2305.9,
          "placement": "right",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            136.22,
            197.9,
            1456.0
          ],
          "value_approx": 205.5,
          "placement": "leader",
          "offset_index": 1,
          "tolerance": null
        }
      ],
      "Section A-A": [
        {
          "type": "wall_thickness",
          "dim_type": "Distance",
          "match_strategy": "nearest_parallel_edges",
          "location_3d": [
            136.22,
            197.9,
            1456.0
          ],
          "value_approx": 205.5,
          "placement": "leader",
          "offset_index": 1,
          "tolerance": null
        },
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            136.22,
            197.9,
            1456.0
          ],
          "value_approx": 100,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        }
      ],
      "Detail B": [
        {
          "type": "diameter",
          "dim_type": "Diameter",
          "match_strategy": "nearest_circle",
          "location_3d": [
            136.22,
            197.9,
            1456.0
          ],
          "value_approx": 50,
          "tolerance": "H7",
          "placement": "leader",
          "offset_index": 1
        },
        {
          "type": "linear_distance",
          "dim_type": "Distance",
          "match_strategy": "nearest_edge_pair",
          "value_approx": 20,
          "placement": "leader",
          "offset_index": 1,
          "tolerance": null
        }
      ]
    }
  }
}