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47. q

Ejemplo Geo2D en Moodle

Esta figura muestra una elipse definida por centro, vértice y covértice.

{
  "version": 2,
  "meta": {
    "title": "Elipse de ejemplo"
  },
  "view": {
    "xMin": -8,
    "xMax": 8,
    "yMin": -6,
    "yMax": 6,
    "showGrid": true,
    "showAxes": true,
    "lockAspect": true
  },
  "style": {
    "pointRadius": 5,
    "pointCaptureRadius": 14,
    "strokeWidth": 2,
    "fontSize": 14
  },
  "objects": [
    {
      "id": "A",
      "kind": "point",
      "def": { "kind": "free", "x": 0, "y": 0 },
      "label": "A",
      "style": { "fill": "#ea580c" },
      "draggable": true
    },
    {
      "id": "B",
      "kind": "point",
      "def": { "kind": "free", "x": 4, "y": 0 },
      "label": "B",
      "style": { "fill": "#ea580c" },
      "draggable": true
    },
    {
      "id": "C",
      "kind": "point",
      "def": { "kind": "free", "x": 0, "y": 2 },
      "label": "C",
      "style": { "fill": "#ea580c" },
      "draggable": true
    },
    {
      "id": "e1",
      "kind": "ellipse",
      "def": {
        "kind": "center-vertex-covertex",
        "center": "A",
        "vertex": "B",
        "coVertex": "C",
        "derivedPoints": {
          "antiVertex": "P1",
          "antiCoVertex": "P2"
        }
      },
      "style": { "stroke": "#9333ea" }
    },
    {
      "id": "P1",
      "kind": "point",
      "def": {
        "kind": "ellipse-derived-point",
        "ellipseId": "e1",
        "role": "antiVertex"
      },
      "label": "P1",
      "visible": false,
      "style": { "fill": "#16a34a" },
      "draggable": false
    },
    {
      "id": "P2",
      "kind": "point",
      "def": {
        "kind": "ellipse-derived-point",
        "ellipseId": "e1",
        "role": "antiCoVertex"
      },
      "label": "P2",
      "visible": false,
      "style": { "fill": "#16a34a" },
      "draggable": false
    }
  ]
}

Puedes mover A, B y C para explorar cómo cambia la elipse.