駕車線路導航api
包含全球定位、數據檢索、路線規劃、實時導航等查詢功能
參見詳情：http://www.haoservice.com/docs/24
示例詳情：
{"error_code":0,
"reason":"Success",
"result":{"route":
{"origin":"116.379018,39.865026","destination":"116.321139,39.896028",
"paths":[{"steps":[{"instruction":"向東南行駛116米向左前方行駛",
"polyline":"116.37986,39.865673;.....116.380363,39.865173;116.3806,39.864799"},/*路徑*/
{"instruction":"向東行駛74米向右前方行駛進入匝道",/*導航描述*/
"polyline":"116.3806,39.864796;......116.381218,39.864899;116.381348,39.864956"},
{"instruction":"沿北京南站路行駛565米右轉",
"polyline":"116.381348,39.864956;....116.384529,39.865883;"},
{"instruction":"沿馬家堡東路向南行駛176米直行進入左側道路",
"polyline":"116.38752,39.86512;.....116.386925,39.863609"},
{"instruction":"沿馬家堡東路向南行駛702米右轉",
"polyline":"116.386925,39.863605;116.386848,39.863197;"},
{"instruction":"沿南三環西路輔路向西行駛424米向左前方行駛進入主路",
"polyline":"116.386734,39.857262;.......116.383781,39.857288;"},
{"instruction":"向東南行駛294米到達目的地",
"polyline":"116.319847,39.896862;........116.32,39.896358;116.320068,39.896332;"}
]}
]}
}
}