/// <summary>
/// Read and parse data from a .mat file.
/// </summary>
/// <param name="stream">Input stream.</param>
/// <returns>Parsed contents of the file.</returns>
protected override IMatFile ReadDataFromStream(Stream stream)
{
var matFileReader = new MatFileReader(stream);
var matFile = matFileReader.Read();
return(matFile);
}
public (List <double> time, List <double> gyrox, List <double> gyroy, List <double> gyroz, List <double> accx, List <double> accy, List <double> accz) Load()
{
IMatFile matFile;
using (var fileStream = new System.IO.FileStream(_FileName, System.IO.FileMode.Open))
{
var reader = new MatFileReader(fileStream);
matFile = reader.Read();
}
IArray itime = (((matFile["data"].Value as IStructureArray)["raw", 0] as IStructureArray)["imu0", 0] as IStructureArray)["time", 0];
IArray igyrox = (((matFile["data"].Value as IStructureArray)["raw", 0] as IStructureArray)["imu0", 0] as IStructureArray)["gyrox", 0];
IArray igyroy = (((matFile["data"].Value as IStructureArray)["raw", 0] as IStructureArray)["imu0", 0] as IStructureArray)["gyroy", 0];
IArray igyroz = (((matFile["data"].Value as IStructureArray)["raw", 0] as IStructureArray)["imu0", 0] as IStructureArray)["gyroz", 0];
IArray iaccx = (((matFile["data"].Value as IStructureArray)["raw", 0] as IStructureArray)["imu0", 0] as IStructureArray)["accx", 0];
IArray iaccy = (((matFile["data"].Value as IStructureArray)["raw", 0] as IStructureArray)["imu0", 0] as IStructureArray)["accy", 0];
IArray iaccz = (((matFile["data"].Value as IStructureArray)["raw", 0] as IStructureArray)["imu0", 0] as IStructureArray)["accz", 0];
List <double> time = itime.ConvertToDoubleArray().ToList();
List <double> gyrox = igyrox.ConvertToDoubleArray().ToList();
List <double> gyroy = igyroy.ConvertToDoubleArray().ToList();
List <double> gyroz = igyroz.ConvertToDoubleArray().ToList();
List <double> accx = iaccx.ConvertToDoubleArray().ToList();
List <double> accy = iaccy.ConvertToDoubleArray().ToList();
List <double> accz = iaccz.ConvertToDoubleArray().ToList();
return(time, gyrox, gyroy, gyroz, accx, accy, accz);
}
public void Open()
{
using (var fileStream = new FileStream(_FileName, FileMode.Open))
{
var reader = new MatFileReader(fileStream);
_MatFile = reader.Read();
}
}
private void CompareTestDataWithWritingOptions(
IMatFile expected,
IMatFile actual,
MatFileWriterOptions?maybeOptions)
{
byte[] buffer;
using (var stream = new MemoryStream())
{
var writer = maybeOptions is MatFileWriterOptions options
? new MatFileWriter(stream, options)
: new MatFileWriter(stream);
writer.Write(actual);
buffer = stream.ToArray();
}
using (var stream = new MemoryStream(buffer))
{
var reader = new MatFileReader(stream);
var actualRead = reader.Read();
CompareMatFiles(expected, actualRead);
}
}