data.json

[
  { "waypoint_id": "wp_01", "x": 0.0, "y": 0.0 },
  { "waypoint_id": "wp_02", "x": 1.5, "y": 0.5 },
  { "waypoint_id": "wp_03", "x": 3.0, "y": 1.2 },
  { "waypoint_id": "wp_04", "x": 4.2, "y": 2.0 }
]