internal Polyline[] CollectPolygon(string pathToShapefile)
{
string filepath = System.IO.Path.HasExtension(pathToShapefile) ? pathToShapefile.Substring(0, pathToShapefile.Length - (System.IO.Path.GetExtension(pathToShapefile).Length)) : pathToShapefile;
string shpfilepath = filepath + ".shp";
FileStream fs = new FileStream(shpfilepath, FileMode.Open, FileAccess.Read);
BinaryReader binaryFile = new BinaryReader(fs);
binaryFile.BaseStream.Seek(100, SeekOrigin.Current);
MainRecord mainrecords = new MainRecord();
int shapeCount = mainrecords.GetNumRecords(pathToShapefile);
for (int i = 0; i < shapeCount; i++)
{
Polyline polygon = new Polyline();
binaryFile.ReadBytes(12);
polygon.Box[0] = binaryFile.ReadDouble();
polygon.Box[1] = binaryFile.ReadDouble();
polygon.Box[2] = binaryFile.ReadDouble();
polygon.Box[3] = binaryFile.ReadDouble();
int numParts = binaryFile.ReadInt32();
int numPoints = binaryFile.ReadInt32();
for (int j = 0; j < numParts; j++)
{
int parts = binaryFile.ReadInt32();
polygon.Parts.Add(parts);
}
for (int k = 0; k < numPoints; k++)
{
Point tempPoint = new Point();
tempPoint.X = binaryFile.ReadDouble();
tempPoint.Y = binaryFile.ReadDouble();
polygon.Points.Add(tempPoint);
}
polygons.Add(polygon);
}
return(polygons.ToArray());
}
internal Point[] CollectPoint(string pathToShapefile)
{
string filepath = System.IO.Path.HasExtension(pathToShapefile) ? pathToShapefile.Substring(0, pathToShapefile.Length - (System.IO.Path.GetExtension(pathToShapefile).Length)) : pathToShapefile;
string shpfilepath = filepath + ".shp";
FileStream fs = new FileStream(shpfilepath, FileMode.Open, FileAccess.Read);
BinaryReader binaryFile = new BinaryReader(fs);
binaryFile.BaseStream.Seek(100, SeekOrigin.Current);
binaryFile.ReadBytes(100);
MainRecord mainrecords = new MainRecord();
int shapeCount = mainrecords.GetNumRecords(pathToShapefile);
for (int i = 0; i < shapeCount; i++)
{
Point point = new Point();
//记录头8个字节和一个int(4个字节)的shapetype
//binaryFile.BaseStream.Seek(12,fs);
binaryFile.ReadBytes(12);
point.X = binaryFile.ReadDouble();
point.Y = binaryFile.ReadDouble();
points.Add(point);
}
return(points.ToArray());
}
