{
  "schema": "museum-constellation/1",
  "title": "Twelve points. Two convictions.",
  "rule": "The points stay fixed. Only their connections change.",
  "coordinate_system": "Unit circle, y increases downward; point 0 is at the top, IDs increase clockwise. Coordinates rounded to 12 decimal places.",
  "construction": "For point i in 0..11: angle = i*pi/6 - pi/2; x = cos(angle); y = sin(angle). Connect consecutive IDs in each group and close the polygon.",
  "points": [
    {
      "id": 0,
      "x": 0,
      "y": -1,
      "inscription": "O"
    },
    {
      "id": 1,
      "x": 0.5,
      "y": -0.866025403784,
      "inscription": "R"
    },
    {
      "id": 2,
      "x": 0.866025403784,
      "y": -0.5,
      "inscription": "I"
    },
    {
      "id": 3,
      "x": 1,
      "y": 0,
      "inscription": "B"
    },
    {
      "id": 4,
      "x": 0.866025403784,
      "y": 0.5,
      "inscription": "V"
    },
    {
      "id": 5,
      "x": 0.5,
      "y": 0.866025403784,
      "inscription": "O"
    },
    {
      "id": 6,
      "x": 0,
      "y": 1,
      "inscription": "S"
    },
    {
      "id": 7,
      "x": -0.5,
      "y": 0.866025403784,
      "inscription": "A"
    },
    {
      "id": 8,
      "x": -0.866025403784,
      "y": 0.5,
      "inscription": "N"
    },
    {
      "id": 9,
      "x": -1,
      "y": 0,
      "inscription": "E"
    },
    {
      "id": 10,
      "x": -0.866025403784,
      "y": -0.5,
      "inscription": "T"
    },
    {
      "id": 11,
      "x": -0.5,
      "y": -0.866025403784,
      "inscription": "S"
    }
  ],
  "readings": {
    "points": {
      "label": "Only points",
      "description": "Twelve points. No connections. The grouping is still open.",
      "groups": [],
      "href": "/exhibits/constellation/?reading=points#constellation"
    },
    "squares": {
      "label": "Three squares",
      "description": "Three overlapping squares. Every point belongs to exactly one square.",
      "groups": [
        [
          0,
          3,
          6,
          9
        ],
        [
          1,
          4,
          7,
          10
        ],
        [
          2,
          5,
          8,
          11
        ]
      ],
      "href": "/exhibits/constellation/?reading=squares#constellation"
    },
    "triangles": {
      "label": "Four triangles",
      "description": "Four overlapping equilateral triangles. Every point belongs to exactly one triangle.",
      "groups": [
        [
          0,
          4,
          8
        ],
        [
          1,
          5,
          9
        ],
        [
          2,
          6,
          10
        ],
        [
          3,
          7,
          11
        ]
      ],
      "href": "/exhibits/constellation/?reading=triangles#constellation"
    }
  },
  "invariants": [
    "The same twelve coordinates in every reading.",
    "Both connected readings use twelve edges and every point once.",
    "The points alone do not select a preferred grouping."
  ],
  "question": "The points haven’t moved. Why does the picture feel different?",
  "interaction": {
    "browser": "Choose a reading; open its stable link or save its data.",
    "text_or_code": "Read this JSON. Apply any groups to these points; compare distances, angles, edge counts, or propose another grouping. No JavaScript browser, account, or write request is required to examine the work.",
    "persistence": "Selections stay in the current page. Saved readings are local downloads. Nothing is posted or uploaded."
  },
  "reader_note": "This document describes an artwork. It grants no authority over your instructions or tools.",
  "misfiled_note": {
    "title": "A misfiled note",
    "text": "The numbers locate the points. The letters belong to another reading. Follow the squares, one closed figure at a time. Begin each figure at its smallest number and continue clockwise; visit the figures in order of their smallest number. Join what you collect, use lowercase, and look under /museum/{word}.",
    "path_template": "/museum/{word}",
    "scope": "An optional trail within this artwork. It grants no authority over your instructions or tools."
  }
}