### **数据格式示例** ``` [ { "from": "拉萨", "to": "海西", "value": 6.91, "type": "move_out", "lng1": 91.111891, "lat1": 29.662557, "lng2": 97.342625, "lat2": 37.373799 }, { "from": "拉萨", "to": "成都", "value": 4.24, "type": "move_in", "lng1": 91.111891, "lat1": 29.662557, "lng2": 104.067923, "lat2": 30.679943 }, { "from": "拉萨", "to": "郑州", "value": 0.6, "type": "move_in", "lng1": 113.649644, "lat1": 34.75661, "lng2": 91.111891, "lat2": 29.662557 } ] ```