{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "definitions": {
    "vect3d": {
      "type": "object",
      "properties": {
        "x": {
          "type": "number"
        },
        "y": {
          "type": "number"
        },
        "z": {
          "type": "number"
        }
      },
      "required": [
        "x",
        "y",
        "z"
      ]
    }
  }
}