public new static ShapefileDataWriter Open(string path)
{
ShapefileHeader header;
int recordNumber;
using (BinaryReader reader = new BinaryReader(new FileStream(Path.ChangeExtension(path, ".shx"), FileMode.Open)))
{
header = ShapefileHeader.Read(reader);
recordNumber = ((int)(reader.BaseStream.Length - 100) / 8) + 1;
}
ShapefileDataWriter writer = new ShapefileDataWriter(path, header, FileMode.Append, FileAccess.Write);
writer._writerShape.BaseStream.Seek(0, SeekOrigin.End);
writer._writerIndex.BaseStream.Seek(0, SeekOrigin.End);
writer._recordNumber = recordNumber;
writer._filePos = (int)writer._writerShape.BaseStream.Length / 2;
// Need to push dbf reader to end of file.
writer._dbf = DbfFile.Open(Path.ChangeExtension(path, ".dbf"));
writer._currentRecord = new DbfRecord(writer._dbf.Header);
return(writer);
}
public static ShapefileDataWriter Create(string path, DbfHeader dbfHeader, ShapefileHeader shapeHeader)
{
ShapefileDataWriter writer = new ShapefileDataWriter(path, shapeHeader, FileMode.CreateNew, FileAccess.Write);
writer._writerShape.BaseStream.Seek(100L, SeekOrigin.Begin);
writer._writerIndex.BaseStream.Seek(100L, SeekOrigin.Begin);
writer._dbf = DbfFile.Create(Path.ChangeExtension(path, ".dbf"), dbfHeader);
writer._currentRecord = new DbfRecord(dbfHeader);
writer._recordNumber = 1;
writer._filePos = 50;
return writer;
}
public static ShapefileDataWriter Create(string path, DbfHeader dbfHeader, ShapefileHeader shapeHeader)
{
ShapefileDataWriter writer = new ShapefileDataWriter(path, shapeHeader, FileMode.CreateNew, FileAccess.Write);
writer._writerShape.BaseStream.Seek(100L, SeekOrigin.Begin);
writer._writerIndex.BaseStream.Seek(100L, SeekOrigin.Begin);
writer._dbf = DbfFile.Create(Path.ChangeExtension(path, ".dbf"), dbfHeader);
writer._currentRecord = new DbfRecord(dbfHeader);
writer._recordNumber = 1;
writer._filePos = 50;
return(writer);
}
public static new ShapefileDataWriter Open(string path)
{
ShapefileHeader header;
int recordNumber;
using (BinaryReader reader = new BinaryReader(new FileStream(Path.ChangeExtension(path, ".shx"), FileMode.Open)))
{
header = ShapefileHeader.Read(reader);
recordNumber = ((int)(reader.BaseStream.Length - 100) / 8) + 1;
}
ShapefileDataWriter writer = new ShapefileDataWriter(path, header, FileMode.Append, FileAccess.Write);
writer._writerShape.BaseStream.Seek(0, SeekOrigin.End);
writer._writerIndex.BaseStream.Seek(0, SeekOrigin.End);
writer._recordNumber = recordNumber;
writer._filePos = (int)writer._writerShape.BaseStream.Length / 2;
// Need to push dbf reader to end of file.
writer._dbf = DbfFile.Open(Path.ChangeExtension(path, ".dbf"));
writer._currentRecord = new DbfRecord(writer._dbf.Header);
return writer;
}
