{
  "status": "unbounded",
  "vertices": [
    [
      349.47112173238565,
      13.302121787008087
    ],
    [
      649.0783141257873,
      24.706243940862326
    ],
    [
      704.9784261478786,
      27.221516841665565
    ],
    [
      1149.886091806679,
      84.03538833511422
    ],
    [
      1094.1078143807658,
      79.57076189541714
    ]
  ],
  "tolerance_m": 1.0000000000000001e-07,
  "diameter_infinite": true,
  "diameter_m": null,
  "recession_direction": [
    0.9973401975299315,
    0.07288710716551386
  ],
  "message": "存在非零衰退方向，区域无界，直径为无穷大"
}