extern static System.Int32 FFT_translateToSpectrum(out System.Double p_delte_hz, out System.Double p_amplitude, out FFT_Complex p_dst, FFT_Complex[] p_src, System.Int32 num_of_points, System.Double hz);
private void btnFileRead_Click(object sender, EventArgs e)
{
string[] s_arr = null;
lvInput.Items.Clear();
lvOutput.Items.Clear();
m_fft_in = null;
m_fft_out = null;
m_fft_out2 = null;
m_real = null;
chartInput.Series["實數"].Points.Clear();
chartInput.Series["虛數"].Points.Clear();
if (ofdInput.ShowDialog(this) != DialogResult.OK)
{
return;
}
s_arr = System.IO.File.ReadAllLines(ofdInput.FileName);
m_fft_in = new FFT_Complex[s_arr.Length - 1];
m_fft_out = new FFT_Complex[s_arr.Length - 1];
m_fft_out2 = new FFT_Complex[s_arr.Length - 1];
m_real = new double[s_arr.Length - 1];
m_amplitude = new double[(s_arr.Length - 1) / 2];
m_hz = double.Parse(s_arr[0]);
switch (cmbFileRead.SelectedIndex)
{
case 0:
PointPairList[] list = new PointPairList[2];
GraphPane pane = zgcTest.GraphPane;
list[0] = new PointPairList();
list[1] = new PointPairList();
for (int i = 0; i < (s_arr.Length - 1); i++)
{
string[] arr = s_arr[i + 1].Split(',');
m_fft_in[i].real = double.Parse(arr[0]);
m_fft_in[i].imag = double.Parse(arr[1]);
ListViewItem item = lvInput.Items.Add((i + 1).ToString());
item.SubItems.Add(m_fft_in[i].real.ToString());
item.SubItems.Add(m_fft_in[i].imag.ToString());
chartInput.Series["實數"].Points.AddY(m_fft_in[i].real);
chartInput.Series["虛數"].Points.AddY(m_fft_in[i].imag);
list[0].Add(i + 1, m_fft_in[i].real);
list[1].Add(i + 1, m_fft_in[i].imag);
}
pane.AddCurve("", list[0], Color.IndianRed, SymbolType.None);
pane.AddCurve("", list[1], Color.CadetBlue, SymbolType.None);
zgcTest.AxisChange();
zgcTest.Refresh();
break;
case 1:
for (int i = 0; i < (s_arr.Length - 1); i++)
{
m_fft_in[i].real = double.Parse(s_arr[i + 1]);
m_fft_in[i].imag = 0.0f;
ListViewItem item = lvInput.Items.Add((i + 1).ToString());
item.SubItems.Add(m_fft_in[i].real.ToString());
item.SubItems.Add(m_fft_in[i].imag.ToString());
chartInput.Series["實數"].Points.AddY(m_fft_in[i].real);
chartInput.Series["虛數"].Points.AddY(m_fft_in[i].imag);
}
break;
case 2:
for (int i = 0; i < (s_arr.Length - 1); i++)
{
m_fft_in[i].real = 0.0f;
m_fft_in[i].imag = double.Parse(s_arr[i + 1]);;
ListViewItem item = lvInput.Items.Add((i + 1).ToString());
item.SubItems.Add(m_fft_in[i].real.ToString());
item.SubItems.Add(m_fft_in[i].imag.ToString());
chartInput.Series["實數"].Points.AddY(m_fft_in[i].real);
chartInput.Series["虛數"].Points.AddY(m_fft_in[i].imag);
}
break;
}
}
extern static System.Int32 FFT_translate(out FFT_Complex p_dst, FFT_Complex[] p_src, System.Int32 num_of_points);