private void button1_Click(object sender, EventArgs e)
{
using (OpenFileDialog ofd = new OpenFileDialog())
{
ofd.Filter = "txt files (*.txt)|*.txt";
ofd.InitialDirectory = @"D:\stud_repo\astu\DS\FourierTransform\FourierTransform\test";
ofd.RestoreDirectory = true;
if (ofd.ShowDialog() == DialogResult.OK)
{
var profileKey = Regex.Replace(Path.GetFileNameWithoutExtension(ofd.FileName), "[0-9]", "");
if (!_profiles.ContainsKey(profileKey))
{
profileKey = "default";
}
var rawContent = File.ReadAllText(ofd.FileName);
var splittedText = rawContent.Split(new Char[] { '\n', '\r', ' ' }, StringSplitOptions.RemoveEmptyEntries);
_rawSource = splittedText.Select((item, index) => new SignalPoint {
X = index, Y = Convert.ToDouble(item.Replace(".", ","))
}).ToList();
_transformedSource = SignalConverter.ConvertWithProfile(_rawSource, _profiles[profileKey]);
sourceChart.DataSource = _transformedSource;
sourceChart.Series["SourceSignal"].XValueMember = "X";
sourceChart.Series["SourceSignal"].YValueMembers = "Y";
sourceChart.ChartAreas["ChartArea1"].AxisX.Title = _profiles[profileKey].XLabel;
sourceChart.ChartAreas["ChartArea1"].AxisY.Title = _profiles[profileKey].YLabel;
sourceChart.DataBind();
}
}
}
public List <SignalPoint> ReadWav(string path)
{
try
{
using (FileStream wavStream = new FileStream(path,
FileMode.Open, FileAccess.Read))
{
int readHeader = wavStream.Read(head, 0, H);
int length =
(((int)head[43]) << 24) +
(((int)head[42]) << 16) +
(((int)head[41]) << 8) +
(int)head[40];
var content = new byte[length];
wavStream.Read(content, 0, length);
List <SignalRepresentation.SignalPoint> rawwav = new List <SignalRepresentation.SignalPoint>();
for (int i = 0; i < length / 2; i++)
{
byte byteOne = content[i * 2];
byte byteTwo = content[i * 2 + 1];
rawwav.Add(new SignalPoint {
X = i, Y = (int)(short)(byteOne | byteTwo << 8)
});
}
return(SignalConverter.ConvertWithProfile(rawwav, wav));
}
}
catch (FileNotFoundException ex)
{
return(null);
}
}
private List <SignalPoint> ReadData(string path, string profile)
{
List <SignalPoint> sourceSignal;
var rawContent = File.ReadAllText(path);
var splittedText = rawContent.Split(new Char[] { '\n', '\r', ' ' }, StringSplitOptions.RemoveEmptyEntries);
//List<SignalPoint> rawSignal = new List<SignalPoint>();
//for (int i = 0; i < splittedText.Length; i++)
//{
// rawSignal.Add(new SignalPoint { X = i, Y = Convert.ToDouble(splittedText[i].Replace(".", ",")) });
//}
List <SignalPoint> rawSignal = splittedText.Select((item, index) => new SignalPoint {
X = index, Y = Convert.ToDouble(item)
}).ToList();
sourceSignal = SignalConverter.ConvertWithProfile(rawSignal, _profiles[profile]);
return(sourceSignal);
}