protected ShpReader(string fileName, ShapeType type)
{
//this.directoryName = System.IO.Path.GetDirectoryName(fileName);
//this.fileNameWithoutExtension = System.IO.Path.GetFileNameWithoutExtension(fileName);
if (!Shapefile.CheckAllNeededFilesExists(fileName))
{
throw new NotImplementedException();
}
ShxReader shxFile = new ShxReader(Shapefile.GetShxFileName(fileName));
using (System.IO.FileStream shpStream = new System.IO.FileStream(fileName, System.IO.FileMode.Open))
{
using (this.shpReader = new System.IO.BinaryReader(shpStream))
{
this.MainHeader = new MainFileHeader(this.shpReader.ReadBytes(ShapeConstants.MainHeaderLengthInBytes));
if ((ShapeType)this.MainHeader.ShapeType != type)
{
throw new NotImplementedException();
}
if (!MainFileHeader.CanBeForTheSameShapefile(this.MainHeader, shxFile.MainHeader))
{
throw new NotImplementedException();
}
this.elements = new ShapeCollection <T>(this.MainHeader);
int numberOfRecords = shxFile.NumberOfRecords;
for (int i = 0; i < numberOfRecords; i++)
{
int offset, contentLength02;
shxFile.GetRecord(i, out offset, out contentLength02);
shpReader.BaseStream.Position = offset * 2;
int recordNumber, contentLength;
ReadRecordHeader(out recordNumber, out contentLength);
if (contentLength != contentLength02)
{
System.Diagnostics.Trace.WriteLine("ERROR at contentLength != contentLength02: i=" + i.ToString());
//throw new NotImplementedException();
}
if (contentLength == 2)
{
continue;
}
elements.Add(ReadElement());
//4: length of the record header in words
//contentLength: length of the contents in words
//this.tempPosition = this.tempPosition - (ShapeConstants.RecordHeaderLengthInWords + contentLength);
}
}
}
}
