public void ReadHeader(string filePath)
{
using (var stream1 = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None))
{
stream1.Position = 0;
using (var reader = new BinaryReader(stream1))
{
while (stream1.Position < FILE_HEADER_SIZE)
{
Header = HeaderFromReader(reader);
}
}
}
}
private static FILEHEADER HeaderFromReader(BinaryReader reader)
{
FILEHEADER result = new FILEHEADER();
result.FileSignature = Encoding.UTF8.GetChars(reader.ReadBytes(4));
result.FileSourceID = reader.ReadUInt16();
result.GlobalEncoding = reader.ReadUInt16();
result.PIDData1 = reader.ReadUInt32();
result.PIDData2 = reader.ReadUInt16();
result.PIDData3 = reader.ReadUInt16();
result.PIDData4 = reader.ReadBytes(8);
result.VersionMajor = reader.ReadByte();
result.VersionMinor = reader.ReadByte();
result.SystemIdentifier = Encoding.UTF8.GetChars(reader.ReadBytes(32));
result.GeneratingSoftware = Encoding.UTF8.GetChars(reader.ReadBytes(32));
result.FileCreationDayofYear = reader.ReadUInt16();
result.FileCreationYear = reader.ReadUInt16();
result.HeaderSize = reader.ReadUInt16();
result.OffsetToPointData = reader.ReadUInt32();
result.NumberOfVariableLengthRecords = reader.ReadUInt32();
result.PointDataRecFormat = reader.ReadByte();
result.PointDataRecLength = reader.ReadUInt16();
result.LegacyNumberOfPointRecs = reader.ReadUInt32();
result.LegacyNumberOfPointByReturn = reader.ReadBytes(20);
result.XScaleFactor = reader.ReadDouble();
result.YScaleFactor = reader.ReadDouble();
result.ZScaleFactor = reader.ReadDouble();
result.XOffset = reader.ReadDouble();
result.YOffset = reader.ReadDouble();
result.ZOffset = reader.ReadDouble();
result.MaxX = reader.ReadDouble();
result.MaxY = reader.ReadDouble();
result.MaxZ = reader.ReadDouble();
result.MinX = reader.ReadDouble();
result.MinY = reader.ReadDouble();
result.MinZ = reader.ReadDouble();
result.StartOfWaveformDataPacketRec = reader.ReadUInt64();
result.StartOfFirstExtdVariableLenRec = reader.ReadUInt64();
result.NumberOfExtdVariableLengthRecs = reader.ReadUInt32();
result.NumberOfPointRecs = reader.ReadUInt64();
result.NumberOfPointsByReturn = reader.ReadBytes(120);
return(result);
}
