惠安惠达新需求：增加起始里程和结束里程修改

本文展示了如何处理和解析车辆轨迹数据，包括起始位置、行驶路径、停留时间和运行时间等详细信息。通过分析一系列子路径的数据，揭示了整体行程的全貌。

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修改代码：

给前台的json数据：


{
	hostId: 2616,
	hostNo: 闽C0C133,
	list: [{
		pathDate: 2017-02-22,
		startTime: 2017-02-2209: 21: 19,
		endTime: 2017-02-2217: 56: 21,
		startAddress: 泉州市惠安县西苑路85号,
		startLon: 118.791344,
		startLat: 25.034976,
		endAddress: 泉州市晋江市德泰路4-2号,
		endLon: 118.556072,
		endLat: 24.877144,
		trackKm: 47.573,
		stopTimeLen: null,
		runTimeLen: 1小时18分2秒,
		partList: [{
			pathDate: null,
			startTime: 2017-02-2209: 21: 19,
			endTime: 2017-02-2209: 22: 43,
			startAddress: 泉州市惠安县西苑路85号,
			startLon: 118.791344,
			startLat: 25.034976,
			endAddress: 泉州市惠安县西苑路75号,
			endLon: 118.7924,
			endLat: 25.033736,
			trackKm: 0.184,
			stopTimeLen: 2小时59分27秒,
			runTimeLen: 1分24秒,
			partList: null,
			startTrackKm: null,
			endTrackKm: null,
			extraMap: null
		},
		{
			pathDate: null,
			startTime: 2017-02-2212: 22: 10,
			endTime: 2017-02-2212: 23: 17,
			startAddress: 泉州市惠安县科山路22号,
			startLon: 118.792088,
			startLat: 25.034026,
			endAddress: 泉州市惠安县西苑路85号,
			endLon: 118.791304,
			endLat: 25.035106,
			trackKm: 0.221,
			stopTimeLen: 2小时26分28秒,
			runTimeLen: 1分7秒,
			partList: null,
			startTrackKm: null,
			endTrackKm: null,
			extraMap: null
		},
		{
			pathDate: null,
			startTime: 2017-02-2214: 49: 45,
			endTime: 2017-02-2214: 51: 10,
			startAddress: 泉州市惠安县西苑路85号,
			startLon: 118.791256,
			startLat: 25.035078,
			endAddress: 泉州市惠安县西苑路75号,
			endLon: 118.792408,
			endLat: 25.033748,
			trackKm: 0.205,
			stopTimeLen: 33分17秒,
			runTimeLen: 1分25秒,
			partList: null,
			startTrackKm: null,
			endTrackKm: null,
			extraMap: null
		},
		{
			pathDate: null,
			startTime: 2017-02-2215: 24: 27,
			endTime: 2017-02-2215: 29: 15,
			startAddress: 泉州市惠安县科山路20号,
			startLon: 118.79168,
			startLat: 25.033708,
			endAddress: 泉州市惠安县科山路18号,
			endLon: 118.79208,
			endLat: 25.033472,
			trackKm: 0.326,
			stopTimeLen: 22分2秒,
			runTimeLen: 4分48秒,
			partList: null,
			startTrackKm: null,
			endTrackKm: null,
			extraMap: null
		},
		{
			pathDate: null,
			startTime: 2017-02-2215: 51: 17,
			endTime: 2017-02-2215: 54: 43,
			startAddress: 泉州市惠安县科山路20号,
			startLon: 118.792192,
			startLat: 25.033548,
			endAddress: 泉州市惠安县科山路36号,
			endLon: 118.793112,
			endLat: 25.036988,
			trackKm: 0.59,
			stopTimeLen: 48分41秒,
			runTimeLen: 3分26秒,
			partList: null,
			startTrackKm: null,
			endTrackKm: null,
			extraMap: null
		},
		{
			pathDate: null,
			startTime: 2017-02-2216: 43: 24,
			endTime: 2017-02-2217: 22: 51,
			startAddress: 泉州市惠安县科山路36号,
			startLon: 118.793184,
			startLat: 25.036998,
			endAddress: 泉州市丰泽区段湖路134号,
			endLon: 118.58272,
			endLat: 24.926766,
			trackKm: 37.128,
			stopTimeLen: 7分5秒,
			runTimeLen: 39分27秒,
			partList: null,
			startTrackKm: null,
			endTrackKm: null,
			extraMap: null
		},
		{
			pathDate: null,
			startTime: 2017-02-2217: 29: 56,
			endTime: 2017-02-2217: 56: 21,
			startAddress: 泉州市丰泽区段湖路134号,
			startLon: 118.582736,
			startLat: 24.926868,
			endAddress: 泉州市晋江市德泰路4-2号,
			endLon: 118.556072,
			endLat: 24.877144,
			trackKm: 8.919,
			stopTimeLen: ,
			runTimeLen: 26分25秒,
			partList: null,
			startTrackKm: null,
			endTrackKm: null,
			extraMap: null
		}],
		startTrackKm: 1728.565,
		endTrackKm: 1776.138,
		extraMap: null
	}],
	retCode: 0,
	retMsg: ,
	pkId: null,
	extraMap: null
}

可以看出有startTrackKm: 1728.565,endTrackKm: 1776.138都在list里面，OK