public static void CentroidToShapefile()
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "文本文件|*.txt;*.csv";
ofd.RestoreDirectory = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
StreamReader sr = new StreamReader(ofd.FileName);
//string[] header = sr.ReadLine().Split(',');
IFeatureSet oFS = new FeatureSet(FeatureType.Point);
oFS.Projection = ProjectionInfo.FromEpsgCode(4326);
oFS.Name = "BusStop";
oFS.DataTable.Columns.Add("Name", typeof(string));
while (!sr.EndOfStream)
{
string[] line = sr.ReadLine().Split(',');
double x = double.Parse(line[2]);
double y = double.Parse(line[3]);
var xyCorrection = CoordinateTransformUtil.bd09towgs84(x, y);
var fe = oFS.AddFeature(new Point(xyCorrection[0], xyCorrection[1]));
fe.DataRow.BeginEdit();
fe.DataRow["Name"] = line[0];
fe.DataRow.EndEdit();
}
oFS.SaveAs("BusStop.shp", true);
sr.Close();
Console.WriteLine("Shapefile转换成功！");
Console.ReadKey();
}
}
private static void TransformGPS()
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "文本文件|*.txt;*.csv";
ofd.RestoreDirectory = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
using (TextReader sr = new StreamReader(ofd.FileName /*,Encoding.GetEncoding("GB2312")*/))
{
var csv = new CsvReader(sr);
csv.Configuration.Delimiter = "\t";
var records = csv.GetRecords <RefPoints>().ToList();
foreach (var item in records)
{
double[] newPoints = CoordinateTransformUtil.bd09towgs84(item.X, item.Y);
item.X = newPoints[0];
item.Y = newPoints[1];
//double[] newStart = CoordinateTransformUtil.bd09towgs84(item.StartX, item.StartY);
//double[] newEnd = CoordinateTransformUtil.bd09towgs84(item.EndX, item.EndY);
//item.StartX = newStart[0];
//item.StartY = newStart[1];
//item.EndX = newEnd[0];
//item.EndY = newEnd[1];
}
StreamWriter sw = new StreamWriter("newRef_points_hefei.csv", false, Encoding.UTF8);
var csvwriter = new CsvWriter(sw);
csvwriter.WriteRecords(records);
sw.Close();
}
Console.WriteLine("Data Transform Completed!");
Console.ReadKey();
}
}
private static void ProcessingGPSTrajectories()
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "文本文件|*.txt;*.csv";
ofd.RestoreDirectory = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
StreamWriter sw = new StreamWriter("newTraces.txt");
var gpsData = GPSIO.GPSTrajectoryReader.ReadAll(ofd.FileName);
foreach (var item in gpsData.GPSTrajectoriesData)
{
sw.Write(item.UserID + "\t");
for (int i = 0; i < item.GPSCount; i++)
{
double[] newPoint = CoordinateTransformUtil.bd09towgs84(item[i].X, item[i].Y);
sw.Write(string.Format("{0},{1},{2}", item[i].TimeStamp, newPoint[0], newPoint[1]));
if (i != item.GPSCount - 1)
{
sw.Write("|");
}
}
sw.Write(Environment.NewLine);
}
sw.Close();
Console.WriteLine("Data Transform Completed!");
Console.ReadKey();
}
}
