/// <summary>
/// Given stream and traceCount, reads the requested number
/// of traces into memory. The given traceCount may exceed
/// the number of traces in the file;
/// in that case all the traces in the file are read.
/// Assumes the stream is at the start of the file.
/// </summary>
public virtual ISegyFile Read(Stream stream, int traceCount, IReadingProgress progress = null)
{
using (var reader = new BinaryReader(stream))
{
var fileHeader = ReadFileHeader(reader);
var traces = new List <ITrace>();
for (int i = 0; i < traceCount; i++)
{
if (progress != null)
{
// TODO: Check if stream.Length breaks when streaming from web
int percentage = (int)(100 * stream.Position / stream.Length);
progress.ReportProgress(percentage);
if (progress.CancellationPending)
{
break;
}
}
var trace = ReadTrace(reader, fileHeader.SampleFormat, fileHeader.IsLittleEndian);
if (trace == null)
{
break;
}
traces.Add(trace);
}
return(new SegyFile {
Header = fileHeader, Traces = traces
});
}
}
/// <summary>
/// Given stream and traceCount, reads the requested number
/// of traces into memory. The given traceCount may exceed
/// the number of traces in the file;
/// in that case all the traces in the file are read.
/// Assumes the stream is at the start of the file.
/// </summary>
public virtual ISegyFile Read(Stream stream, int traceCount, IReadingProgress progress = null)
{
using (var reader = new BinaryReader(stream))
{
var fileHeader = ReadFileHeader(reader);
var traces = new List<ITrace>();
for (int i = 0; i < traceCount; i++)
{
if (progress != null)
{
// TODO: Check if stream.Length breaks when streaming from web
int percentage = (int)(100 * stream.Position / stream.Length);
progress.ReportProgress(percentage);
if (progress.CancellationPending)
break;
}
var trace = ReadTrace(reader, fileHeader.SampleFormat, fileHeader.IsLittleEndian);
if (trace == null)
break;
traces.Add(trace);
}
return new SegyFile { Header = fileHeader, Traces = traces };
}
}
/// <summary>
/// Given stream, reads entire SEGY file into memory.
/// Assumes the stream is at the start of the file.
/// </summary>
public virtual ISegyFile Read(Stream stream, IReadingProgress progress = null)
{
return(Read(stream, int.MaxValue, progress));
}
/// <summary>
/// Given a file path, reads entire SEGY file into memory
/// </summary>
public virtual ISegyFile Read(string path, IReadingProgress progress = null)
{
using (var stream = File.OpenRead(path))
return(Read(stream, progress));
}
/// <summary>
/// Given stream, reads entire SEGY file into memory.
/// Assumes the stream is at the start of the file.
/// </summary>
public virtual ISegyFile Read(Stream stream, IReadingProgress progress = null)
{
return Read(stream, int.MaxValue, progress);
}
/// <summary>
/// Given a file path, reads entire SEGY file into memory
/// </summary>
public virtual ISegyFile Read(string path, IReadingProgress progress = null)
{
using (var stream = File.OpenRead(path))
return Read(stream, progress);
}