static void updateAndInterpolateCarIDTxts(string originalDataFolder, string writeFolder, string dateStr, string fullCarIDsTxtPath) // 这个不用了
{
CreateDictionary(fullCarIDsTxtPath, dateStr);
if (!Directory.Exists(writeFolder)) // G:\interpolation_data\01AllCar\
{
Directory.CreateDirectory(writeFolder);
}
string[] names = Directory.GetFiles(originalDataFolder);
for (int pathIndex = 0; pathIndex < names.Length; pathIndex++) // 读取第二遍，写第一遍
{
string path = names[pathIndex];
//Console.WriteLine("将原数据塞入carIDwithInfo，读取进度：{0}/{1} ", pathIndex, names.Length);
StreamReader sr = new StreamReader(path, Encoding.Default); string line;
//读取第二遍原始数据
while ((line = sr.ReadLine()) != null)
{
CarState carState;
string[] oneRecord = line.Split('|');
string objectID = oneRecord[0];
string GPStime = oneRecord[9];
double longitude = Convert.ToDouble(oneRecord[10]);
double latitude = Convert.ToDouble(oneRecord[11]);
int state = Convert.ToInt32(oneRecord[3]); //是否空车
if (state == 1)
{
carState = CarState.Vacant;
}
else
{
carState = CarState.InUse;
}
if (GPStime.Length < "2016-08-01 11:00:00".Length)
{
continue;
}
if (DateTime.Parse(GPStime) >= DateTime.Parse("2016-08-" + dateStr + " 00:00:00") && DateTime.Parse(GPStime) < DateTime.Parse("2016-08-" + dateStr + " 23:59:59"))
{
OnePoint oneCarInfo = new OnePoint(new GISVertex(longitude, latitude), carState, objectID, GPStime);
TrackPoints oneCarTrack = carIDwithInfo[objectID]; //key:carID -> ListofCarID
oneCarTrack.addTrackPoint(oneCarInfo); //调用ListOfCarID的方法，将文件中一行的carInfo加到Dictionaty的ListOfCarID中
}
}
}
//int itemCount = 0;
foreach (var item in carIDwithInfo)
{
// itemCount++;
//遍历每一ID对应的item
if (item.Value.ShowCarTrackNum() != 0)
{
List <OnePoint> thisCarTrack = item.Value.GetThisCarTrack();
string objectID = null;
List <double> newLatList = new List <double>(); List <double> newLngList = new List <double>();
List <string> newGPStimeList = new List <string>(); List <string> newStateList = new List <string>();
double last_longitude = thisCarTrack[0].CarLocation.x;
double last_latitude = thisCarTrack[0].CarLocation.y;
DateTime last_GPStime = DateTime.Parse(thisCarTrack[0].GPSTime);
string last_state = thisCarTrack[0].State.ToString(); //OneJourney oneJourney = null;
for (int i = 1; i < thisCarTrack.Count; i++)
{
objectID = thisCarTrack[i].CarID;
double current_longitude = thisCarTrack[i].CarLocation.x;
double current_latitude = thisCarTrack[i].CarLocation.y;
DateTime current_GPStime = DateTime.Parse(thisCarTrack[i].GPSTime);
string current_state = thisCarTrack[i].State.ToString();
if (current_GPStime.Minute - last_GPStime.Minute > 1)
{
int step_num = current_GPStime.Minute - last_GPStime.Minute;
for (int j = 0; j < step_num; j++)
{
//插值，3s-6s 插入4s 5s 6s
DateTime interpolate_time = last_GPStime.AddMinutes(j + 1);
string time = interpolate_time.ToShortDateString() + " " + interpolate_time.Hour.ToString() + ":"
+ interpolate_time.Minute + ":" + "00"; //time格式化为：2016/8/3 11:2:18
double latitude = current_latitude + (DateTime.Parse(time).TimeOfDay.TotalSeconds - current_GPStime.TimeOfDay.TotalSeconds) * (current_latitude - last_latitude) / (current_GPStime - last_GPStime).TotalSeconds; //线性插值公式进行插值
double longitude = current_longitude + (DateTime.Parse(time).TimeOfDay.TotalSeconds - current_GPStime.TimeOfDay.TotalSeconds) * (current_longitude - last_longitude) / (current_GPStime - last_GPStime).TotalSeconds; //线性插值公式进行插值
newLatList.Add(latitude); newLngList.Add(longitude); newStateList.Add(current_state); newGPStimeList.Add(DateTime.Parse(time).ToString()); //time格式化为：2016/8/3 11:02:18
}
}
if (current_GPStime.Minute - last_GPStime.Minute == 1 || current_GPStime.Minute - last_GPStime.Minute == -59)
{
string time = current_GPStime.ToShortDateString() + " " + current_GPStime.Hour.ToString() + ":"
+ current_GPStime.Minute + ":" + "00"; //time格式化为：2016/8/3 11:2:18
double latitude = current_latitude + (DateTime.Parse(time).TimeOfDay.TotalSeconds - current_GPStime.TimeOfDay.TotalSeconds) * (current_latitude - last_latitude) / (current_GPStime - last_GPStime).TotalSeconds; //线性插值公式进行插值
double longitude = current_longitude + (DateTime.Parse(time).TimeOfDay.TotalSeconds - current_GPStime.TimeOfDay.TotalSeconds) * (current_longitude - last_longitude) / (current_GPStime - last_GPStime).TotalSeconds; //线性插值公式进行插值
newLatList.Add(latitude); newLngList.Add(longitude); newStateList.Add(current_state);
newGPStimeList.Add(DateTime.Parse(time).ToString()); //time格式化为：2016/8/3 11:02:18
}
last_GPStime = current_GPStime; last_latitude = current_latitude; last_longitude = current_longitude; last_state = current_state;
//写第一遍原始数据
//sw.WriteLine(thisCarTrack[i].CarID + "," + thisCarTrack[i].CarLocation.x + "," + thisCarTrack[i].CarLocation.y + "," + thisCarTrack[i].GPSTime + "," + thisCarTrack[i].State);
}
//Console.WriteLine("将原数据塞入各自id的txt，写入进度：{0}/{1} ",itemCount,carIDwithInfo.Count);
string WritePath = writeFolder + item.Key + "_Intepolation.txt";
FileStream fs = new FileStream(WritePath, FileMode.Create);
StreamWriter sw = new StreamWriter(fs);
for (int i = 0; i < newGPStimeList.Count; i++)
{
//写第二遍插值后的原数据
sw.WriteLine(objectID + "," + newLngList[i] + "," + newLatList[i] + "," + newGPStimeList[i] + "," + newStateList[i]);
}
//清空缓冲区
sw.Flush();
//关闭流
sw.Close();
fs.Close();
}
}
}
static void updatedRecordsIntoCarIDTxts(string originalDataFolder, string writeFolder, string dateStr, string fullCarIDsTxtPath)
{
CreateDictionary(fullCarIDsTxtPath, dateStr);
if (!Directory.Exists(writeFolder)) // G:\interpolation_data\01AllCar\
{
Directory.CreateDirectory(writeFolder);
}
string[] names = Directory.GetFiles(originalDataFolder);
for (int pathIndex = 0; pathIndex < names.Length; pathIndex++) // 读取第二遍，写第一遍
{
string path = names[pathIndex];
//Console.WriteLine("将原数据塞入各自id的txt，读取进度： " + path);
StreamReader sr = new StreamReader(path, Encoding.Default); string line;
//读取第二遍原始数据
while ((line = sr.ReadLine()) != null)
{
CarState carState;
string[] oneRecord = line.Split('|');
string objectID = oneRecord[0];
string GPStime = oneRecord[9];
double longitude = Convert.ToDouble(oneRecord[10]);
double latitude = Convert.ToDouble(oneRecord[11]);
int state = Convert.ToInt32(oneRecord[3]); //是否空车
if (state == 1)
{
carState = CarState.Vacant;
}
else
{
carState = CarState.InUse;
}
if (GPStime.Length < "2016-08-01 11:00:00".Length)
{
continue;
}
if (DateTime.Parse(GPStime) >= DateTime.Parse("2016-08-" + dateStr + " 00:00:00") && DateTime.Parse(GPStime) < DateTime.Parse("2016-08-" + dateStr + " 23:59:59"))
{
OnePoint oneCarInfo = new OnePoint(new GISVertex(longitude, latitude), carState, objectID, GPStime);
TrackPoints oneCarTrack = carIDwithInfo[objectID]; //key:carID -> ListofCarID
oneCarTrack.addTrackPoint(oneCarInfo); //调用ListOfCarID的方法，将文件中一行的carInfo加到Dictionaty的ListOfCarID中
}
}
}
//将Dictionary中的数据导出
foreach (var item in carIDwithInfo)
{
if (item.Value.ShowCarTrackNum() != 0)
{
string writePath = writeFolder + item.Key + ".txt";
FileStream fs = new FileStream(writePath, FileMode.Append);
StreamWriter sw = new StreamWriter(fs);
List <OnePoint> thisCarTrack = item.Value.GetThisCarTrack();
for (int i = 0; i < thisCarTrack.Count; i++)
{
//写第一遍原始数据
sw.WriteLine(thisCarTrack[i].CarID + "," + thisCarTrack[i].CarLocation.x + "," + thisCarTrack[i].CarLocation.y + "," + thisCarTrack[i].GPSTime + "," + thisCarTrack[i].State);
}
sw.Flush(); sw.Close(); fs.Close();
}
//Console.WriteLine("将原数据塞入各自id的txt，写入进度： " + item.Key);
}
//Console.WriteLine("time duration: {0}", TimeDiff(start, end));
}