mathburst.fireheartjerry.chatgpt.site

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 80,
      "description": "Timeline name, up to 80 characters. Required with tracks; optional with preset."
    },
    "duration": {
      "type": "number",
      "exclusiveMinimum": 0,
      "maximum": 600,
      "description": "Length in seconds, 0..600. Required with tracks; optional with preset (its default otherwise)."
    },
    "tracks": {
      "type": "array",
      "minItems": 1,
      "maxItems": 32,
      "items": {
        "type": "object",
        "properties": {
          "target": {
            "type": "object",
            "description": "What to animate: {kind: \"object\", objectId, path} or {kind: \"camera\", path: \"x\" | \"y\" | \"zoom\"}.",
            "properties": {
              "kind": {
                "type": "string",
                "enum": [
                  "object",
                  "camera"
                ],
                "description": "\"object\" animates a field of an object; \"camera\" animates the viewport."
              },
              "objectId": {
                "type": "string",
                "description": "Object id; required when kind is \"object\"."
              },
              "path": {
                "type": "string",
                "description": "Field path, e.g. \"opacity\", \"bounds.x\", \"parameters.a\", \"section\", \"values\", \"primitives.A.at\", \"latex\"; camera: \"x\", \"y\", \"zoom\"."
              }
            },
            "required": [
              "kind",
              "path"
            ],
            "additionalProperties": false
          },
          "keyframes": {
            "type": "array",
            "minItems": 1,
            "maxItems": 200,
            "description": "Keyframes in seconds within the duration; values interpolate linearly between them.",
            "items": {
              "type": "object",
              "description": "One keyframe {time, value}.",
              "required": [
                "time",
                "value"
              ],
              "additionalProperties": false,
              "properties": {
                "time": {
                  "type": "number",
                  "minimum": 0,
                  "description": "Time in seconds from the start, 0..duration."
                },
                "value": {
                  "description": "Value at that time, matching the path: number, [x, y], number[3], number[4], number[][] or LaTeX string."
                }
              }
            }
          }
        },
        "required": [
          "target",
          "keyframes"
        ],
        "additionalProperties": false,
        "description": "One track: a target path plus its keyframes."
      },
      "description": "Up to 32 tracks, one per target path. Give this or preset."
    },
    "preset": {
      "type": "object",
      "properties": {
        "name": {
          "type": "string",
          "enum": [
            "drawIn",
            "fadeIn",
            "sweepParameter",
            "sweepSection",
            "cameraTo",
            "crossfadeLatex",
            "densityConstruct",
            "bridgeMorph",
            "attentionDrawIn",
            "geometryDependencyDraw",
            "simplexSweep",
            "partitionRows",
            "matrixSweep",
            "barycentricDrawIn"
          ],
          "description": "Preset name; the enum lists them and get_timelines describes each with its params."
        },
        "objectId": {
          "type": "string",
          "minLength": 1,
          "description": "Target object id (required by every preset except cameraTo)."
        },
        "objectIds": {
          "type": "array",
          "maxItems": 16,
          "items": {
            "type": "string",
            "minLength": 1,
            "description": "Object id."
          },
          "description": "Extra ids; bridgeMorph: equation ids to crossfade."
        },
        "seconds": {
          "type": "number",
          "exclusiveMinimum": 0,
          "maximum": 600,
          "description": "Duration in seconds; overrides the preset default."
        },
        "from": {
          "description": "Start value; defaults to the live state (section, values, latex, binEdges, viewport)."
        },
        "to": {
          "description": "End value: number (sweeps), number[4] (bridgeMorph), number[][] (matrixSweep), LaTeX (crossfadeLatex) or {x, y, zoom} (cameraTo)."
        },
        "parameter": {
          "type": "string",
          "description": "Graph parameter name for sweepParameter, e.g. \"a\"."
        }
      },
      "required": [
        "name"
      ],
      "additionalProperties": false,
      "description": "A named preset and its arguments. Give this or tracks."
    }
  },
  "additionalProperties": false,
  "examples": [
    {
      "preset": {
        "name": "drawIn",
        "objectId": "graph-1",
        "seconds": 3
      }
    },
    {
      "preset": {
        "name": "sweepParameter",
        "objectId": "graph-1",
        "parameter": "a",
        "from": 0.5,
        "to": 3,
        "seconds": 4
      }
    },
    {
      "name": "Fade the note",
      "duration": 2,
      "tracks": [
        {
          "target": {
            "kind": "object",
            "objectId": "note-1",
            "path": "opacity"
          },
          "keyframes": [
            {
              "time": 0,
              "value": 0
            },
            {
              "time": 2,
              "value": 1
            }
          ]
        }
      ]
    },
    {
      "preset": {
        "name": "cameraTo",
        "to": {
          "x": -200,
          "y": -80,
          "zoom": 1.4
        },
        "seconds": 2
      }
    }
  ]
}