{
  "format": "tessera-hologram",
  "version": 2,
  "id": "s2-cathedral",
  "title": "The vaulted nave — Gothic cathedral interior",
  "subject": {
    "category": "architecture",
    "accuracy": "generic",
    "synthetic": false,
    "summary": "An interior-first, six-bay Gothic nave: paired clustered piers carry pointed arcades, a triforium and high clerestories beneath a luminous ribbed vault; a twelve-light rose terminates the long perspective. Generic designed reconstruction, not an identified cathedral or a surveyed building. All dimensions, bay counts, tracery and furnishings are inferred design choices; dust and light effects are decorative."
  },
  "units": "m",
  "seed": 217,
  "sources": [
    {
      "id": "request",
      "kind": "user_request",
      "title": "Public-showcase cathedral hologram request",
      "rights": "user_private",
      "ref": "The nave of a gothic cathedral seen from inside: two rows of piers with pointed arches, a ribbed vault overhead, clerestory windows and a rose window at the far end."
    }
  ],
  "facts": [
    {
      "key": "brief.subject",
      "value": "Gothic cathedral nave, seen from inside",
      "certainty": "user_supplied",
      "note": "The user named the subject and interior viewpoint, not a particular cathedral.",
      "source": "request"
    },
    {
      "key": "brief.piers",
      "value": "Two rows of piers with pointed arches",
      "certainty": "user_supplied",
      "note": "Requested structural rhythm; no measurements or pier counts were supplied.",
      "source": "request"
    },
    {
      "key": "brief.vault",
      "value": "Ribbed vault overhead",
      "certainty": "user_supplied",
      "note": "Requested overhead structure; no vault plan or stonework survey was supplied.",
      "source": "request"
    },
    {
      "key": "brief.windows",
      "value": "Clerestory windows and a rose window at the far end",
      "certainty": "user_supplied",
      "note": "Requested identity features; no authentic glazing design was supplied.",
      "source": "request"
    },
    {
      "key": "design.dimensions",
      "value": "48 m long nave; 14 m clear centre span; 25.6 m overall floor width; vault spring 25.6 m and crown 34.6 m",
      "certainty": "inferred",
      "note": "Chosen monumental yet slender proportions for this generic reconstruction, not historical measurements."
    },
    {
      "key": "design.bays",
      "value": 6,
      "certainty": "inferred",
      "note": "Six 8 m bays, seven piers in each row, chosen to produce a strong interior vanishing point."
    },
    {
      "key": "design.arcade",
      "value": "Pier cores at x = ±7 m; arcade spring 9.8 m, clear arch span 6.4 m and rise 4.8 m",
      "certainty": "inferred",
      "note": "Designed two-centred pointed arches and clustered supports, not a claim about a named monument."
    },
    {
      "key": "design.vault",
      "value": "Transverse pointed ribs, crossing diagonal ribs, longitudinal ridge and simplified continuous pointed web shell",
      "certainty": "inferred",
      "note": "A legible ribbed-vault interpretation. Thin web geometry simplifies masonry curvature and does not claim authentic quadripartite stereotomy."
    },
    {
      "key": "design.clerestory",
      "value": "Paired lancets and a small oculus inside each high pointed opening; blind triplet triforium below",
      "certainty": "inferred",
      "note": "A designed Gothic elevation hierarchy added to make the requested interior intelligible."
    },
    {
      "key": "design.rose",
      "value": "Twelve radial lights, petalled tracery, central roundel and an annular stone surround; centre 20 m above the floor",
      "certainty": "inferred",
      "note": "Invented geometric tracery, not copied or authenticated stained glass. No saint, donor, date, dedication or cathedral identity is asserted."
    },
    {
      "key": "design.aisles",
      "value": "Two narrow side aisles with lower pointed transverse vault ribs and lancet openings",
      "certainty": "inferred",
      "note": "Secondary spaces chosen to give the two nave arcades believable depth and support."
    },
    {
      "key": "design.furnishings",
      "value": "Three shallow sanctuary steps, a plain altar and two tall candle stands",
      "certainty": "inferred",
      "note": "Restrained designed furnishings for scale; their presence is not evidence about a specific church."
    },
    {
      "key": "design.joints",
      "value": "Small open joints between adjacent repeated masonry panels",
      "certainty": "inferred",
      "note": "Masonry-panel joints preserve legibility without coincident wireframe edges."
    },
    {
      "key": "display.life",
      "value": "Slow dust drift and candle-light breathing; architecture remains rigid",
      "certainty": "decorative",
      "note": "Atmosphere only. No moving stone, opening roof, spinning rose or fictitious structural articulation."
    },
    {
      "key": "display.review",
      "value": "Geometric validation only; no rendered visual review",
      "certainty": "decorative",
      "note": "Rendering, captures and video were explicitly excluded by the user."
    }
  ],
  "assets": [],
  "parts": [
    {
      "id": "nave-foundation",
      "label": "Continuous floor and foundation",
      "role": "mass",
      "certainty": "inferred",
      "stage": 0,
      "basis": [
        "design.dimensions"
      ],
      "shape": {
        "type": "box",
        "size": [
          25.6,
          0.5,
          51
        ]
      },
      "at": [
        0,
        -0.25,
        0
      ],
      "look": {
        "fill": "glass",
        "alpha": 0.6
      }
    },
    {
      "id": "floor-longitudinal-joints",
      "label": "Longitudinal paving courses",
      "role": "ground",
      "certainty": "inferred",
      "stage": 0,
      "basis": [
        "design.dimensions"
      ],
      "shape": {
        "type": "curve",
        "points": [
          [
            3.4,
            0.012,
            -24.8
          ],
          [
            3.4,
            0.012,
            24.8
          ]
        ],
        "smooth": false,
        "closed": false
      },
      "at": [
        0,
        0,
        0
      ],
      "mirror": "x"
    },
    {
      "id": "floor-bay-joints",
      "label": "Transverse floor courses",
      "role": "ground",
      "certainty": "inferred",
      "stage": 0,
      "basis": [
        "design.dimensions"
      ],
      "shape": {
        "type": "curve",
        "points": [
          [
            -12.3,
            0.014,
            0
          ],
          [
            12.3,
            0.014,
            0
          ]
        ],
        "smooth": false,
        "closed": false
      },
      "at": [
        0,
        0,
        -24
      ],
      "repeat": {
        "count": 13,
        "step": {
          "at": [
            0,
            0,
            4
          ]
        }
      }
    },
    {
      "id": "sanctuary-first-step",
      "label": "Sanctuary first step",
      "role": "structure",
      "certainty": "inferred",
      "stage": 0,
      "basis": [
        "design.furnishings"
      ],
      "shape": {
        "type": "box",
        "size": [
          11,
          0.14,
          6
        ]
      },
      "at": [
        0,
        0.07,
        -21.5
      ]
    },
    {
      "id": "sanctuary-second-step",
      "label": "Sanctuary second step",
      "role": "structure",
      "certainty": "inferred",
      "stage": 0,
      "basis": [
        "design.furnishings"
      ],
      "shape": {
        "type": "box",
        "size": [
          10.2,
          0.14,
          5.5
        ]
      },
      "at": [
        0,
        0.21,
        -21.75
      ]
    },
    {
      "id": "sanctuary-third-step",
      "label": "Sanctuary third step",
      "role": "structure",
      "certainty": "inferred",
      "stage": 0,
      "basis": [
        "design.furnishings"
      ],
      "shape": {
        "type": "box",
        "size": [
          9.4,
          0.14,
          5
        ]
      },
      "at": [
        0,
        0.35,
        -22
      ]
    },
    {
      "id": "pier-bases",
      "label": "Paired octagonal pier plinths",
      "role": "structure",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "brief.piers",
        "design.arcade",
        "design.bays"
      ],
      "shape": {
        "type": "cylinder",
        "radius": 1.1,
        "height": 0.48,
        "segments": 8,
        "ribs": 8
      },
      "at": [
        7,
        0,
        -24
      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
            0,
            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "pier-cores",
      "label": "Two rows of load-bearing piers",
      "role": "mass",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "brief.piers",
        "design.arcade",
        "design.bays"
      ],
      "shape": {
        "type": "cylinder",
        "radius": 0.64,
        "height": 8.62,
        "segments": 12,
        "ribs": 6
      },
      "at": [
        7,
        0.48,
        -24
      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
            0,
            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "pier-shaft-front",
      "label": "Clustered pier colonnettes front",
      "role": "structure",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "design.arcade",
        "design.bays"
      ],
      "shape": {
        "type": "cylinder",
        "radius": 0.21,
        "height": 8.62,
        "segments": 6,
        "ribs": 3
      },
      "at": [
        7,
        0.48,
        -23.39
      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
            0,
            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "pier-shaft-back",
      "label": "Clustered pier colonnettes back",
      "role": "structure",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "design.arcade",
        "design.bays"
      ],
      "shape": {
        "type": "cylinder",
        "radius": 0.21,
        "height": 8.62,
        "segments": 6,
        "ribs": 3
      },
      "at": [
        7,
        0.48,
        -24.61
      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
            0,
            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "pier-shaft-outer",
      "label": "Clustered pier colonnettes outer",
      "role": "structure",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "design.arcade",
        "design.bays"
      ],
      "shape": {
        "type": "cylinder",
        "radius": 0.21,
        "height": 8.62,
        "segments": 6,
        "ribs": 3
      },
      "at": [
        7.61,
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      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
            0,
            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "pier-capitals",
      "label": "Flared moulded capitals",
      "role": "structure",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "design.arcade"
      ],
      "shape": {
        "type": "lathe",
        "profile": [
          [
            0.68,
            0
          ],
          [
            0.72,
            0.18
          ],
          [
            0.94,
            0.44
          ],
          [
            0.98,
            0.56
          ],
          [
            0.98,
            0.7
          ]
        ],
        "segments": 12,
        "meridians": 6
      },
      "at": [
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        9.1,
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      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
            0,
            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "vault-responds",
      "label": "Unbroken engaged vault shafts",
      "role": "structure",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "design.vault",
        "design.arcade"
      ],
      "shape": {
        "type": "cylinder",
        "radius": 0.19,
        "height": 25.02,
        "segments": 6,
        "ribs": 3
      },
      "at": [
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        0.48,
        -24
      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
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            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "aisle-wall-plinths",
      "label": "Low side-aisle masonry",
      "role": "mass",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "design.aisles"
      ],
      "shape": {
        "type": "box",
        "size": [
          0.7,
          3.3,
          49.2
        ]
      },
      "at": [
        12.1,
        1.65,
        0
      ],
      "mirror": "x"
    },
    {
      "id": "aisle-wall-piers",
      "label": "Aisle wall supports",
      "role": "structure",
      "certainty": "inferred",
      "stage": 1,
      "basis": [
        "design.aisles"
      ],
      "shape": {
        "type": "box",
        "size": [
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          8.9,
          2.6
        ]
      },
      "at": [
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        7.75,
        -24
      ],
      "repeat": {
        "count": 7,
        "step": {
          "at": [
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            0,
            8
          ]
        }
      },
      "mirror": "x"
    },
    {
      "id": "arcade-spandrels",
      "label": "Masonry over the pointed arcade openings",
      "role": "mass",
      "certainty": "inferred",
      "stage": 2,
      "basis": [
        "brief.piers",
        "design.arcade",
        "design.joints"
      ],
      "shape": {
        "type": "extrude",
        "profile": [
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          [
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        ],
        "height": 0.8,
        "axis": "x"
      },
      "at": [
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      ],
      "repeat": {
        "count": 6,
        "step": {
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        }
      },
      "mirror": "x",
      "look": {
        "fill": "glass",
        "alpha": 0.38
      }
    },
    {
      "id": "pointed-arcades-near",
      "label": "Two-centred pointed arcade arch near",
      "role": "identity",
      "certainty": "inferred",
      "stage": 2,
      "basis": [
        "brief.piers",
        "design.arcade"
      ],
      "shape": {
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        "path": [
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        ],
        "radius": 0.17,
        "sides": 6,
        "samples": 1,
        "smooth": false,
        "longitudinal": 3,
        "ring_every": 0
      },
      "at": [
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      },
      "mirror": "x",
      "look": {
        "fill": "none",
        "weight": 1.35
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    },
    {
      "id": "pointed-arcades-far",
      "label": "Two-centred pointed arcade arch far",
      "role": "identity",
      "certainty": "inferred",
      "stage": 2,
      "basis": [
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        "radius": 0.17,
        "sides": 6,
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        "smooth": false,
        "longitudinal": 3,
        "ring_every": 0
      },
      "at": [
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      "repeat": {
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        "step": {
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      },
      "mirror": "x",
      "look": {
        "fill": "none",
        "weight": 1.35
      }
    },
    {
      "id": "arcade-outer-moulding",
      "label": "Outer archivolt moulding",
      "role": "structure",
      "certainty": "inferred",
      "stage": 2,
      "basis": [
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      "shape": {
        "type": "curve",
        "points": [
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        "smooth": false,
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      "at": [
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            0
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            0
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            0.972384,
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            10.271764,
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            0
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            1.163014,
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            9.697262,
            0
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            1.2,
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            0
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            1.2,
            3,
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        "closed": false
      },
      "at": [
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        0,
        -24
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    },
    {
      "id": "terminal-lancet-cap-1",
      "label": "Far-end pointed lancet spandrel",
      "role": "structure",
      "certainty": "inferred",
      "stage": 2,
      "basis": [
        "design.clerestory"
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            10.451879
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            -0.761711,
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            0.761711,
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            0.972384,
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            1.163014,
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            1.190733,
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          [
            1.2,
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          [
            1.2,
            13.2
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          [
            -1.2,
            13.2
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        "axis": "z"
      },
      "at": [
        0,
        0,
        -24.95
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    },
    {
      "id": "terminal-lancet-1",
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      "role": "structure",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.clerestory"
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      "shape": {
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            10.271764,
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            0
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            1.163014,
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            0
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          [
            1.190733,
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            0
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          [
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            0
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          [
            1.2,
            3,
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        "smooth": false,
        "closed": false
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      "at": [
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        0,
        -24
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    },
    {
      "id": "terminal-lancet-cap-2",
      "label": "Far-end pointed lancet spandrel",
      "role": "structure",
      "certainty": "inferred",
      "stage": 2,
      "basis": [
        "design.clerestory"
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      "shape": {
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            1.2,
            13.2
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            -1.2,
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        "axis": "z"
      },
      "at": [
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        0,
        -24.95
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    },
    {
      "id": "terminal-lancet-2",
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      "role": "structure",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.clerestory"
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      "shape": {
        "type": "curve",
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            0
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            0
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            10.62361,
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            0
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            11.197822,
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            0
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            11.306868,
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            0
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            0
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            3,
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        "closed": false
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      "at": [
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        0,
        -24
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      "id": "terminal-gallery-band",
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      "role": "mass",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.rose"
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      "shape": {
        "type": "box",
        "size": [
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          0.9
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      "at": [
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        14.26,
        -24.5
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    {
      "id": "rose-flanking-masonry",
      "label": "Masonry beside the circular rose opening",
      "role": "mass",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.rose"
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      "shape": {
        "type": "box",
        "size": [
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          9.36,
          0.9
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      "at": [
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        20,
        -24.5
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      "mirror": "x",
      "look": {
        "fill": "glass",
        "alpha": 0.38
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    },
    {
      "id": "rose-corner-upper-right",
      "label": "Rose opening curved corner masonry",
      "role": "mass",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.rose"
      ],
      "shape": {
        "type": "extrude",
        "profile": [
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          [
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            20.0
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            4.520533,
            21.211273
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            4.323756,
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            22.34
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            3.712894,
            22.849003
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            3.30926,
            23.30926
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            24.520533
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            0.0,
            24.68
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        ],
        "height": 0.9,
        "axis": "z"
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      "at": [
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        0,
        -24.95
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      "look": {
        "fill": "glass",
        "alpha": 0.28
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    },
    {
      "id": "rose-corner-upper-left",
      "label": "Rose opening curved corner masonry",
      "role": "mass",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.rose"
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      "shape": {
        "type": "extrude",
        "profile": [
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            -1.211273,
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            -0.610863,
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          [
            -0.0,
            24.68
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        ],
        "height": 0.9,
        "axis": "z"
      },
      "at": [
        0,
        0,
        -24.95
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      "look": {
        "fill": "glass",
        "alpha": 0.28
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    },
    {
      "id": "rose-corner-lower-right",
      "label": "Rose opening curved corner masonry",
      "role": "mass",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.rose"
      ],
      "shape": {
        "type": "extrude",
        "profile": [
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          [
            4.68,
            20.0
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          [
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            19.389137
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            18.788727
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            18.209042
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            17.66
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            17.150997
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            3.30926,
            16.69074
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            16.287106
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            2.34,
            15.947001
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            15.676244
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            15.479467
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            0.610863,
            15.360038
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          [
            0.0,
            15.32
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        ],
        "height": 0.9,
        "axis": "z"
      },
      "at": [
        0,
        0,
        -24.95
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      "look": {
        "fill": "glass",
        "alpha": 0.28
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    },
    {
      "id": "rose-corner-lower-left",
      "label": "Rose opening curved corner masonry",
      "role": "mass",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.rose"
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      "shape": {
        "type": "extrude",
        "profile": [
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            -4.68,
            15.32
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          [
            -4.68,
            20.0
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            -4.323756,
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            -3.30926,
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            -2.849003,
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            -0.610863,
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            -0.0,
            15.32
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        "height": 0.9,
        "axis": "z"
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      "at": [
        0,
        0,
        -24.95
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      "look": {
        "fill": "glass",
        "alpha": 0.28
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    },
    {
      "id": "terminal-pointed-tympanum",
      "label": "Far-end wall under the pointed vault",
      "role": "mass",
      "certainty": "inferred",
      "stage": 3,
      "basis": [
        "design.vault",
        "design.rose"
      ],
      "shape": {
        "type": "extrude",
        "profile": [
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            -7.03,
            24.68
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            7.03,
            24.68
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            25.6
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            34.6
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            -1.449444,
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        "height": 0.9,
        "axis": "z"
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      "at": [
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        0,
        -24.95
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      "look": {
        "fill": "glass",
        "alpha": 0.35
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    },
    {
      "id": "vault-web-shell",
      "label": "Thin pointed vault web envelope",
      "role": "mass",
      "certainty": "inferred",
      "stage": 4,
      "basis": [
        "brief.vault",
        "design.vault"
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    {
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      },
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    },
    {
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      "role": "structure",
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      "stage": 4,
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        "fill": "none"
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    },
    {
      "id": "vault-bosses",
      "label": "Bosses at the diagonal rib crossings",
      "role": "structure",
      "certainty": "inferred",
      "stage": 4,
      "basis": [
        "design.vault"
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      "shape": {
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      "look": {
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    },
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      "id": "nave-air-motes",
      "label": "Slow drifting dust — decorative",
      "role": "ornament",
      "certainty": "decorative",
      "stage": 7,
      "basis": [
        "display.life"
      ],
      "shape": {
        "type": "points",
        "count": 100,
        "region": {
          "box": [
            11,
            19,
            43
          ]
        },
        "sprite": "soft",
        "size_px": 1.8
      },
      "at": [
        0,
        12,
        0
      ],
      "floating": true,
      "motion": {
        "type": "bob",
        "axis": [
          0,
          1,
          0
        ],
        "distance": 0.24,
        "period": 24,
        "phase": 0.2
      }
    }
  ],
  "articulations": [],
  "labels": [],
  "anchors": {
    "base": {
      "point": [
        0,
        -0.5,
        0
      ],
      "up": [
        0,
        1,
        0
      ]
    }
  },
  "annotations": [
    {
      "id": "arcade-note",
      "text": "Two pointed arcades · inferred proportions",
      "part": "pointed-arcades-near",
      "offset": [
        -1.5,
        -0.5,
        1
      ]
    },
    {
      "id": "vault-note",
      "text": "Ribbed vault · designed reconstruction",
      "part": "vault-diagonal-forward",
      "offset": [
        0,
        0.8,
        0
      ]
    },
    {
      "id": "clerestory-note",
      "text": "High clerestory · invented tracery",
      "part": "clerestory-pointed-surrounds",
      "offset": [
        -1,
        0.5,
        0
      ]
    },
    {
      "id": "rose-note",
      "text": "Twelve-light rose · invented geometric glazing",
      "part": "rose-stone-surround",
      "offset": [
        0,
        1.1,
        0
      ]
    }
  ],
  "presentation": {
    "framing": {
      "yaw": 0,
      "pitch": -18,
      "fit": 1,
      "target": "rose-stone-surround"
    },
    "views": [
      {
        "id": "hero",
        "label": "Inside the nave toward the rose",
        "yaw": 0,
        "pitch": -18,
        "distance": 2.45,
        "target": "rose-stone-surround"
      },
      {
        "id": "nave-interior",
        "label": "Interior, slightly off axis",
        "yaw": 4,
        "pitch": -17,
        "distance": 2.25,
        "target": "rose-stone-surround"
      },
      {
        "id": "vault",
        "label": "Overhead pointed rib network",
        "yaw": 0,
        "pitch": -60,
        "distance": 0.3,
        "target": "vault-web-shell"
      },
      {
        "id": "clerestory",
        "label": "Clerestory and triforium rhythm",
        "yaw": -65,
        "pitch": -8,
        "distance": 0.63,
        "target": "clerestory-pointed-surrounds"
      },
      {
        "id": "rose",
        "label": "Rose, tracery and terminal lancets",
        "yaw": 0,
        "pitch": -10,
        "distance": 1.55,
        "target": "rose-stone-surround"
      },
      {
        "id": "construction",
        "label": "Open-front architectural cutaway",
        "yaw": 27,
        "pitch": 16,
        "distance": 1.03
      }
    ],
    "atmosphere": {
      "haze": 0.22,
      "scanlines": false,
      "vignette": true,
      "grid": false,
      "projector": false,
      "motes": 0.12
    },
    "occlusion": "xray",
    "certainty_style": "subtle",
    "background": "deep",
    "float": 0
  },
  "animation": {
    "assembly": {
      "style": "ceremony",
      "seconds": 14,
      "interference": false
    },
    "idle": {
      "life": "calm",
      "events": [
        "shimmer",
        "sweep"
      ],
      "cadence": [
        12,
        22
      ],
      "strength": 0.22
    },
    "camera": {
      "drift": 0,
      "breathe": 0.008,
      "tour": [
        {
          "view": "nave-interior",
          "at": 19,
          "fly": 5
        },
        {
          "view": "vault",
          "at": 31,
          "fly": 5
        },
        {
          "view": "rose",
          "at": 43,
          "fly": 6
        },
        {
          "view": "hero",
          "at": 56,
          "fly": 7
        }
      ]
    },
    "reduced_motion": "still"
  }
}