/// <summary>
/// Filters the selected points.
/// </summary>
public static void filter(Chart chart1, List <DataPoint> selectedPoints, List <DataPoint> selectedPoints2, float[] dataArray)
{
int maxLength = selectedPoints.Count;
int maxLength2 = selectedPoints2.Count;
double[] filterFrequencyD = new double[maxLength];
double[] filterTimeD;
double[] filteredData;
for (int i = 0; i < maxLength; i++)
{
if (i < maxLength2 || (maxLength - maxLength2) < i)
{
filterFrequencyD[i] = 1;
}
else
{
filterFrequencyD[i] = 0;
}
}
filterTimeD = IDFT(filterFrequencyD);
filteredData = convolution(filterTimeD, dataArray);
for (int i = 0; i < filteredData.Length; i++)
{
dataArray[i] = (float)filteredData[i];
}
WaveReader.FillChart(dataArray, chart1);
}
/// <summary>
/// Paste copied graph.
/// </summary>
public static void copyPaste(Chart chart1, List <DataPoint> selectedPoints, ref List <DataPoint> copiedPoints, float[] dataArray)
{
float[] newArray = new float[dataArray.Length + copiedPoints.Count + 1];
double[] copyData = convertPoints(copiedPoints);
int startPoint = (int)selectedPoints[0].XValue;
int endPoint = (int)selectedPoints[selectedPoints.Count - 1].XValue;
for (int i = 0; i < startPoint; i++)
{
newArray[i] = dataArray[i];
}
for (int i = startPoint, j = 0; j < copyData.Length; i++, j++)
{
newArray[i] = (float)copyData[j];
}
for (int i = copyData.Length + startPoint, j = startPoint; j < dataArray.Length; i++, j++)
{
newArray[i] = dataArray[j];
}
byte[] updatedArray = new byte[newArray.Length];
for (int i = 0; i < newArray.Length; i++)
{
updatedArray[i] = (byte)(newArray[i] + (byte)128);
}
updateAudio(updatedArray);
dataArray = newArray;
WaveReader.FillChart(newArray, chart1);
}
/// <summary>
/// Copies the selected graphs onto copiedPoints variable and deletes from graph.
/// </summary>
public static void deletePoints(Chart chart1, List <DataPoint> selectedPoints, ref List <DataPoint> copiedPoints, ref float[] dataArray)
{
if (selectedPoints == null)
{
return;
}
float[] newArray = new float[dataArray.Length - selectedPoints.Count + 1];
double[] deleteData = convertPoints(selectedPoints);
copiedPoints = selectedPoints;
int startPoint = (int)selectedPoints[0].XValue;
int endPoint = (int)selectedPoints[selectedPoints.Count - 1].XValue;
for (int i = 0; i < startPoint; i++)
{
newArray[i] = dataArray[i];
}
for (int i = endPoint; i < dataArray.Length; i++)
{
newArray[startPoint] = dataArray[i];
startPoint++;
}
byte[] updatedArray = new byte[newArray.Length];
for (int i = 0; i < newArray.Length; i++)
{
updatedArray[i] = (byte)(newArray[i] + (byte)128);
}
updateAudio(updatedArray);
dataArray = newArray;
WaveReader.FillChart(newArray, chart1);
}
private void graphToolStripMenuItem_Click(object sender, EventArgs e)
{
IntPtr winData = Recorder.getRecorded();
uint size = Recorder.getSize();
byte[] convData = new byte[size];
Marshal.Copy(winData, convData, 0, (int)size);
float[] convData2 = new float[size];
for (uint i = 0; i < size; i++)
{
convData2[i] = convData[i] - (byte)128;
}
dataArray = new float[convData2.Length];
for (int i = 0; i < dataArray.Length; i++)
{
dataArray[i] = convData2[i];
}
WaveReader.FillChart(convData2, chart1);
}
/// <summary>
/// Paste for when cut is called.
/// </summary>
public static void cutPaste(Chart chart1, List <DataPoint> selectedPoints, ref List <DataPoint> copiedPoints, float[] dataArray)
{
if (selectedPoints == null)
{
return;
}
float[] newArray = new float[dataArray.Length + copiedPoints.Count - selectedPoints.Count + 1];
int startPoint = (int)selectedPoints[0].XValue;
int endPoint = (int)selectedPoints[selectedPoints.Count - 1].XValue;
for (int i = 0; i < startPoint; i++)
{
newArray[i] = dataArray[i];
}
for (int i = startPoint, j = 0; j < copiedPoints.Count; j++, i++)
{
newArray[i] = (float)copiedPoints.ElementAt(j).YValues[0];
}
for (int i = endPoint, j = copiedPoints.Count + startPoint; i < dataArray.Length; i++, j++)
{
newArray[j] = dataArray[i];
}
byte[] updatedArray = new byte[newArray.Length];
for (int i = 0; i < newArray.Length; i++)
{
updatedArray[i] = (byte)(newArray[i] + (byte)128);
}
Form1.paste = 2;
updateAudio(updatedArray);
dataArray = newArray;
WaveReader.FillChart(newArray, chart1);
}
/// <summary>
/// Opens the selected audio file and graphs it on the the main graph.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
float[] leftArray;
float[] rightArray;
string file = "NULL";
int size = -1;
DialogResult result = openFileDialog1.ShowDialog(); // Show the dialog.
if (result == DialogResult.OK) // Test result.
{
file = openFileDialog1.FileName;
try
{
string text = File.ReadAllText(file);
size = text.Length;
}
catch (IOException)
{
}
}
Console.WriteLine(file);
if (String.ReferenceEquals(file, "NULL"))
{
Console.WriteLine("...Failed to load note");
}
else if (WaveReader.readWav(file, out leftArray, out rightArray))
{
dataArray = new float[leftArray.Length];
for (int i = 0; i < leftArray.Length; i++)
{
dataArray[i] = leftArray[i];
}
WaveReader.FillChart(leftArray, chart1);
}
}
private void windowingToolStripMenuItem_Click(object sender, EventArgs e)
{
double[] windowingPoints;
windowingPoints = Fourier.Windowing(selectedPoints);
WaveReader.FillChartDouble(Fourier.DFT(windowingPoints), chart3);
}
private void inverseFourierToolStripMenuItem_Click(object sender, EventArgs e)
{
WaveReader.FillChartDouble(Fourier.IDFT(EditChart.convertPoints(selectedPoints)), chart3);
}