private void Calculate_Click(object sender, System.EventArgs e)
{
FC = new ForCall(Forw_proc);
Polygon_Scene Rm = PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
if (!Rm.Complete) return;
if (P == null) P = new WaveConduit(scale, new double[2] { (double)this.Param_Min.Value, (double)this.Param_Max.Value });
Rhino.Geometry.Point3d[] Src = PachTools.GetSource();
Rhino.Geometry.Point3d[] Rec = new Rhino.Geometry.Point3d[0];//PachTools.GetReceivers().ToArray();
if (Src.Length < 1 || Rm == null) Rhino.RhinoApp.WriteLine("Model geometry not specified... Exiting calculation...");
Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Dirac_Pulse;
switch (SourceSelect.Text)
{
case "Dirac Pulse":
s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Dirac_Pulse;
break;
case "Sine Wave":
s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Tone;
break;
case "Sine Pulse":
s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse;
break;
}
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(s_type, (double)Frequency_Selection.Value, 1, PachTools.GetSource());
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec);
FDTD = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, (double)Freq_Max.Value, (double)CO_TIME.Value);
M = new Rhino.Geometry.Mesh[3][] { FDTD.m_templateX, FDTD.m_templateY, FDTD.m_templateZ };
P.SetColorScale(new Pach_Graphics.HSV_colorscale(Param_Scale.Height, Param_Scale.Width, 0, 4.0 / 3.0, 1, 0, 1, 1, false, 12), new double[] { (double)Param_Min.Value, (double)Param_Max.Value });
P.Enabled = true;
if (AxisSelect.SelectedIndex == 0) Pos_Select.Maximum = FDTD.xDim - 1;
else if (AxisSelect.SelectedIndex == 1) Pos_Select.Maximum = FDTD.yDim - 1;
else if (AxisSelect.SelectedIndex == 2) Pos_Select.Maximum = FDTD.zDim - 1;
if (Map_Planes.Items.Count == 0)
{
Pos_Select.Value = Pos_Select.Maximum / 2;
AddPlane_Click(new object(), new EventArgs());
}
Loop_Click(new object(), new EventArgs());
}
private void CalculateSim_Click(object sender, EventArgs e)
{
FC = new ForCall(Forw_proc);
Polygon_Scene Rm = PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
if (!Rm.Complete)
{
return;
}
Rhino.Geometry.Point3d[] Src = PachTools.GetSource();
Rhino.Geometry.Point3d[] Rec = PachTools.GetReceivers().ToArray();
if (Src.Length < 1 || Rm == null)
{
Rhino.RhinoApp.WriteLine("Model geometry not specified... Exiting calculation...");
}
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec);
double fs = 137.8125 * Math.Pow(2, Selected_Extent.SelectedIndex);
samplefrequency = fs;
double df = 1d / ((double)CO_TIME.Value / 1000);
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, df, 1, PachTools.GetSource());
FDTD = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, fs, (double)CO_TIME.Value);
for (double f = df; f < fs; f += df)
{
FDTD.reset(f, Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse);
FDTD.RuntoCompletion();
Frequencies.Items.Add(string.Format("{0} Hz.", f), true);
}
Receiver_Choice.Text = "0";
result_signals = Mic.Recordings;
}
private void CalculateScattering_Click(object sender, EventArgs e)
{
Chosenfreq = 0;
double radius = (double)ScatteringRadius.Value;
double t = 3 * (radius + (double)Sample_Depth.Value) / C_Sound() * 1000;
if (LabCenter == null)
{
return;
}
if (Analysis_Technique.SelectedIndex == 0)
{
Polygon_Scene Rm = RC_PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, false, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
Empty_Scene Rm_Ctrl = new Empty_Scene((double)Air_Temp.Value, (double)Rel_Humidity.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked, true, Rm.Min(), Rm.Max());
Rm_Ctrl.PointsInScene(new List <Hare.Geometry.Point> {
Rm.Min(), Rm.Max()
});
Rm_Ctrl.partition();
if (!Rm.Complete && Rm_Ctrl.Complete)
{
return;
}
Hare.Geometry.Point ArrayCenter = new Hare.Geometry.Point(LabCenter.X, LabCenter.Y, LabCenter.Z + (double)Sample_Depth.Value);
Hare.Geometry.Point[] Src = new Hare.Geometry.Point[1] {
new Hare.Geometry.Point(LabCenter.X, LabCenter.Y, LabCenter.Z + radius + (double)Sample_Depth.Value)
};
List <Hare.Geometry.Point> Rec = new List <Hare.Geometry.Point>();
for (int phi = 0; phi < 18; phi++)
{
for (int theta = 0; theta < 36; theta++)
{
double anglePhi = phi * Math.PI / 18;
double angleTheta = theta * Utilities.Numerics.PiX2 / 36;
Rec.Add(ArrayCenter + radius * new Hare.Geometry.Point(Math.Cos(angleTheta) * Math.Cos(anglePhi), Math.Sin(angleTheta) * Math.Cos(anglePhi), Math.Sin(anglePhi)));
}
}
//for (int phi = 0; phi < 18; phi++)
// {
// double anglePhi = phi * Math.PI / 18;
// Rec.Add(ArrayCenter + radius * new Rhino.Geometry.Point3d(Math.Cos(anglePhi), 0, Math.Sin(anglePhi)));
// }
double fs = 62.5 * Utilities.Numerics.rt2 * Math.Pow(2, comboBox2.SelectedIndex);
t += 60 / fs;
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec.ToArray());
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, fs, 1, Src);
Numeric.TimeDomain.Acoustic_Compact_FDTD FDTDS = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, fs, t, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.ScatteringLab, Utilities.RC_PachTools.RPttoHPt(LabCenter), radius * 2, radius * 2, radius * 1.2 + (double)Sample_Depth.Value);
FDTDS.RuntoCompletion();
Numeric.TimeDomain.Microphone_Compact Micf = new Numeric.TimeDomain.Microphone_Compact(Rec.ToArray());
Numeric.TimeDomain.Signal_Driver_Compact SDf = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, fs, 1, Src);
Numeric.TimeDomain.Acoustic_Compact_FDTD FDTDF = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm_Ctrl, ref SDf, ref Micf, fs, t, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.ScatteringLab, Utilities.RC_PachTools.RPttoHPt(LabCenter), radius * 2, radius * 2, radius * 1.2 + (double)Sample_Depth.Value);
FDTDF.RuntoCompletion();
samplefrequency = FDTDS.SampleFrequency;
Mic.reset();
result_signals = Mic.Recordings[0];
Micf.reset();
result_signals = Micf.Recordings[0];
//Calculate Scattering Coefficients
double[][] TimeS = Mic.Recordings[0];
double[][] TimeF = Micf.Recordings[0];
//Zero packing
for (int i = 0; i < TimeS.Length; i++)
{
Array.Resize(ref TimeS[i], (int)(samplefrequency / 2));
Array.Resize(ref TimeF[i], (int)(samplefrequency / 2));
}
System.Numerics.Complex[][] FS = new System.Numerics.Complex[TimeS.Length][];
System.Numerics.Complex[][] FF = new System.Numerics.Complex[TimeS.Length][];
for (int i = 0; i < TimeS.Length; i++)
{
FS[i] = Audio.Pach_SP.FFT_General(TimeS[i], 0);
FF[i] = Audio.Pach_SP.FFT_General(TimeF[i], 0);
}
Scattering = new double[FS[0].Length];
for (int i = 0; i < FS[0].Length; i++)
{
System.Numerics.Complex sumFS2 = 0;
System.Numerics.Complex sumFF2 = 0;
System.Numerics.Complex sumFSFF = 0;
for (int j = 0; j < FS.Length; j++)
{
sumFS2 += System.Numerics.Complex.Pow(FS[j][i].Magnitude, 2);
sumFF2 += System.Numerics.Complex.Pow(FF[j][i].Magnitude, 2);
sumFSFF += FS[j][i] * System.Numerics.Complex.Conjugate(FF[j][i]);
//sumFS2 += System.Numerics.Complex.Pow(FS[j][i], 2);
//sumFF2 += System.Numerics.Complex.Pow(FF[j][i], 2);
//sumFSFF += FS[j][i] * System.Numerics.Complex.Conjugate(FF[j][i]);
}
System.Numerics.Complex sumReflected = sumFSFF / sumFF2;
System.Numerics.Complex Ratio = sumFF2 / sumFS2;
Scattering[i] = 1 - System.Numerics.Complex.Abs(sumReflected * sumReflected * Ratio);
}
}
else if (Analysis_Technique.SelectedIndex == 1)
{
Polygon_Scene Rm = RC_PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, false, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
Empty_Scene Rm_Ctrl = new Empty_Scene((double)Air_Temp.Value, (double)Rel_Humidity.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked, true, Rm.Min(), Rm.Max());
Rm_Ctrl.PointsInScene(new List <Hare.Geometry.Point> {
Rm.Min(), Rm.Max()
});
Rm_Ctrl.partition();
if (!Rm.Complete && Rm_Ctrl.Complete)
{
return;
}
//if (!Rm.Complete) return;
Hare.Geometry.Point ArrayCenter = new Hare.Geometry.Point(LabCenter.X, LabCenter.Y, LabCenter.Z + (double)Sample_Depth.Value);
Hare.Geometry.Point[] Src = new Hare.Geometry.Point[1] {
new Hare.Geometry.Point(LabCenter.X, LabCenter.Y, LabCenter.Z + radius + (double)Sample_Depth.Value)
};
List <Hare.Geometry.Point> Rec = new List <Hare.Geometry.Point>();
for (int phi = 0; phi < 18; phi++)
{
for (int theta = 0; theta < 36; theta++)
{
double anglePhi = phi * Math.PI / 18;
double angleTheta = theta * Utilities.Numerics.PiX2 / 36;
Rec.Add(ArrayCenter + radius * new Hare.Geometry.Point(Math.Cos(angleTheta) * Math.Cos(anglePhi), Math.Sin(angleTheta) * Math.Cos(anglePhi), Math.Sin(anglePhi)));
}
}
//for (int phi = 0; phi < 18; phi++)
// {
// double anglePhi = phi * Math.PI / 18;
// Rec.Add(ArrayCenter + radius * new Rhino.Geometry.Point3d(Math.Cos(anglePhi), 0, Math.Sin(anglePhi)));
// }
double fs = 62.5 * Utilities.Numerics.rt2 * Math.Pow(2, Analysis_Technique.SelectedIndex);
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec.ToArray());
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, fs, 1, Src);
Numeric.TimeDomain.Acoustic_Compact_FDTD FDTDS = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, fs, t, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.TransparencyLab, Utilities.RC_PachTools.RPttoHPt(LabCenter), radius * 4, radius * 4, radius * 1.2 + (double)Sample_Depth.Value);
FDTDS.RuntoCompletion();
Numeric.TimeDomain.Microphone_Compact Micf = new Numeric.TimeDomain.Microphone_Compact(Rec.ToArray());
Numeric.TimeDomain.Signal_Driver_Compact SDf = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, fs, 1, Src);
Numeric.TimeDomain.Acoustic_Compact_FDTD FDTDF = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm_Ctrl, ref SDf, ref Micf, fs, t, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.ScatteringLab, Utilities.RC_PachTools.RPttoHPt(LabCenter), radius * 4, radius * 4, radius * 1.2 + (double)Sample_Depth.Value);
FDTDF.RuntoCompletion();
int start = (int)Math.Round((2.25 * radius / Rm.Sound_speed(Src[0])) / FDTDS.dt);
samplefrequency = FDTDS.SampleFrequency;
Mic.reset();
result_signals = Mic.Recordings[0];
//Calculate Scattering Coefficients
double[][] TimeS = Mic.Recordings[0];
double[][] TimeF = Micf.Recordings[0];
System.Numerics.Complex[][] FS = new System.Numerics.Complex[TimeS.Length][];
System.Numerics.Complex[][] FF = new System.Numerics.Complex[TimeS.Length][];
for (int i = 0; i < TimeS.Length; i++)
{
double[] ts = new double[TimeS[i].Length - start];
double[] tf = new double[TimeS[i].Length - start];
for (int ti = start; ti < TimeS[i].Length; ti++)
{
ts[ti - start] = TimeS[i][ti];
tf[ti - start] = TimeF[i][ti];
}
FS[i] = Audio.Pach_SP.FFT_General(ts, 0);
FF[i] = Audio.Pach_SP.FFT_General(TimeF[i], 0);
}
Scattering = new double[FS[0].Length];
for (int i = 0; i < FS[0].Length; i++)
{
System.Numerics.Complex sumFF2 = 0;
for (int j = 0; j < FS.Length; j++)
{
sumFF2 += System.Numerics.Complex.Pow(FS[j][i], 2) / System.Numerics.Complex.Pow(FF[j][i], 2);
}
Scattering[i] = Utilities.AcousticalMath.SPL_Pressure(System.Numerics.Complex.Abs(sumFF2));
}
}
Update_Scattering_Graph(null, null);
}
private void Calculate_Click(object sender, System.EventArgs e)
{
FC = new ForCall(Forw_proc);
Polygon_Scene Rm = RC_PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, false, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
if (!Rm.Complete)
{
return;
}
if (P == null)
{
P = new WaveConduit(scale, new double[2] {
(double)this.Param_Min.Value, (double)this.Param_Max.Value
});
}
Hare.Geometry.Point[] Src = RC_PachTools.GetSource();
Hare.Geometry.Point[] Rec = new Hare.Geometry.Point[0];//PachTools.GetReceivers().ToArray();
if (Src.Length < 1 || Rm == null)
{
Rhino.RhinoApp.WriteLine("Model geometry not specified... Exiting calculation...");
}
Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Dirac_Pulse;
switch (SourceSelect.Text)
{
case "Dirac Pulse":
s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Dirac_Pulse;
break;
case "Sine Wave":
s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Tone;
break;
case "Sine Pulse":
s_type = Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse;
break;
}
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(s_type, (double)Frequency_Selection.Value, 1, RC_PachTools.GetSource());
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec);
FDTD = new Numeric.TimeDomain.Acoustic_Compact_FDTD_RC(Rm, ref SD, ref Mic, (double)Freq_Max.Value, (double)CO_TIME.Value, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.Freefield, null, 0, 0, 0);
//FDTD = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, (double)Freq_Max.Value, (double)CO_TIME.Value, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.ScatteringLab, new Hare.Geometry.Point(0,0,0), 8, 6, 5);
M = new Rhino.Geometry.Mesh[3][] { FDTD.m_templateX, FDTD.m_templateY, FDTD.m_templateZ };
P.SetColorScale(new Pach_Graphics.HSV_colorscale(Param_Scale.Height, Param_Scale.Width, 0, 4.0 / 3.0, 1, 0, 1, 1, false, 12), new double[] { (double)Param_Min.Value, (double)Param_Max.Value });
P.Enabled = true;
if (AxisSelect.SelectedIndex == 0)
{
Pos_Select.Maximum = FDTD.xDim - 1;
}
else if (AxisSelect.SelectedIndex == 1)
{
Pos_Select.Maximum = FDTD.yDim - 1;
}
else if (AxisSelect.SelectedIndex == 2)
{
Pos_Select.Maximum = FDTD.zDim - 1;
}
if (Map_Planes.Items.Count == 0)
{
Pos_Select.Value = Pos_Select.Maximum / 2;
AddPlane_Click(new object(), new EventArgs());
}
Loop_Click(new object(), new EventArgs());
}
private void CalculateSim_Click(object sender, EventArgs e)
{
EigenFrequencies.Items.Clear();
Chosenfreq = 0;
FC = new ForCall(Forw_proc);
Polygon_Scene Rm = RC_PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, false, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
if (!Rm.Complete)
{
return;
}
Hare.Geometry.Point[] Src = RC_PachTools.GetSource();
List <Hare.Geometry.Point> Rec = RC_PachTools.GetReceivers();
if (Src.Length < 1 || Rm == null)
{
Rhino.RhinoApp.WriteLine("Model geometry not specified... Exiting calculation...");
}
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec.ToArray());
double fs = 62.5 * Utilities.Numerics.rt2 * Math.Pow(2, Eigen_Extent.SelectedIndex);
//samplefrequency = fs;
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, 1000, 1, RC_PachTools.GetSource());
FDTD = new Numeric.TimeDomain.Acoustic_Compact_FDTD_RC(Rm, ref SD, ref Mic, fs, (double)CO_TIME.Value, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.Freefield, null, 0, 0, 0);
FDTD.RuntoCompletion();
samplefrequency = FDTD.SampleFrequency;
Mic.reset();
result_signals = Mic.Recordings[0];
//System.Numerics.Complex[] source_response = SD.Frequency_Response(result_signals[0].Length);
//double f_limit = 0.8 * fs / samplefrequency * result_signals[0].Length;
//double f_top = 1.3 * f_limit;
//double dpi = Utilities.Numerics.PiX2 / (f_top - f_limit);
//for (int c = 0; c < result_signals.Length; c++)
//{
// System.Numerics.Complex[] result_response = Audio.Pach_SP.FFT_General(result_signals[c],0);
// Array.Resize(ref result_response, result_response.Length / 2);
// for (int s = 0; s < result_response.Length; s++)
// {
// System.Numerics.Complex mod = source_response[s].Magnitude;
// if (s > f_limit) mod /= System.Numerics.Complex.Pow(source_response[s], (.5 * Math.Tanh((s-f_limit) * dpi) + 0.5));
// result_response[s] /= mod.Magnitude;
// }
// result_signals[c] = Audio.Pach_SP.IFFT_Real_General(Audio.Pach_SP.Mirror_Spectrum(result_response), 0);
//}
//Find Eigenfrequencies
if (EigenFrequencies.Items.Count > 0)
{
return;
}
EigenFrequencies.Items.Clear();
Find_EigenFrequencies();
Receiver_Choice.Items.Clear();
for (int i = 0; i < result_signals.Length; i++)
{
Receiver_Choice.Items.Add(i);
}
Time = new double[result_signals[0].Length];
for (int i = 0; i < Time.Length; i++)
{
Time[i] = (double)i / samplefrequency;
}
Receiver_Choice.SelectedIndex = 0;
Receiver_Choice.Update();
}
private void CalculateSim_Click(object sender, EventArgs e)
{
EigenFrequencies.Items.Clear();
Chosenfreq = 0;
FC = new ForCall(Forw_proc);
Polygon_Scene Rm = PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
if (!Rm.Complete) return;
Rhino.Geometry.Point3d[] Src = PachTools.GetSource();
Rhino.Geometry.Point3d[] Rec = PachTools.GetReceivers().ToArray();
if (Src.Length < 1 || Rm == null) Rhino.RhinoApp.WriteLine("Model geometry not specified... Exiting calculation...");
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec);
double fs = 62.5 * Utilities.Numerics.rt2 * Math.Pow(2, Selected_Extent.SelectedIndex);
//samplefrequency = fs;
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, 1000, 1, PachTools.GetSource());
FDTD = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, fs, (double)CO_TIME.Value);
FDTD.RuntoCompletion();
samplefrequency = FDTD.SampleFrequency;
Mic.reset();
result_signals = Mic.Recordings[0];
//System.Numerics.Complex[] source_response = SD.Frequency_Response(result_signals[0].Length);
//double f_limit = 0.8 * fs / samplefrequency * result_signals[0].Length;
//double f_top = 1.3 * f_limit;
//double dpi = Utilities.Numerics.PiX2 / (f_top - f_limit);
//for (int c = 0; c < result_signals.Length; c++)
//{
// System.Numerics.Complex[] result_response = Audio.Pach_SP.FFT_General(result_signals[c],0);
// Array.Resize(ref result_response, result_response.Length / 2);
// for (int s = 0; s < result_response.Length; s++)
// {
// System.Numerics.Complex mod = source_response[s].Magnitude;
// if (s > f_limit) mod /= System.Numerics.Complex.Pow(source_response[s], (.5 * Math.Tanh((s-f_limit) * dpi) + 0.5));
// result_response[s] /= mod.Magnitude;
// }
// result_signals[c] = Audio.Pach_SP.IFFT_Real_General(Audio.Pach_SP.Mirror_Spectrum(result_response), 0);
//}
//Find Eigenfrequencies
if (EigenFrequencies.Items.Count > 0) return;
EigenFrequencies.Items.Clear();
Find_EigenFrequencies();
Receiver_Choice.Items.Clear();
for (int i = 0; i < result_signals.Length; i++) Receiver_Choice.Items.Add(i);
Time = new double[result_signals[0].Length];
for (int i = 0; i < Time.Length; i++) Time[i] = (double)i / samplefrequency;
Receiver_Choice.SelectedIndex = 0;
Receiver_Choice.Update();
}
private void CalculateScattering_Click(object sender, EventArgs e)
{
Chosenfreq = 0;
double radius = (double)ScatteringRadius.Value;
double t = 4 * (radius + (double)Sample_Depth.Value) / C_Sound() * 1000;
if (LabCenter == null)
{
return;
}
Polygon_Scene Rm = PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
Empty_Scene Rm_Ctrl = new Empty_Scene((double)Air_Temp.Value, (double)Rel_Humidity.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked, true, Rm.Min(), Rm.Max());
Rm_Ctrl.PointsInScene(new List <Hare.Geometry.Point> {
Rm.Min(), Rm.Max()
});
Rm_Ctrl.partition();
if (!Rm.Complete && Rm_Ctrl.Complete)
{
return;
}
Rhino.Geometry.Point3d ArrayCenter = new Rhino.Geometry.Point3d(LabCenter.X, LabCenter.Y, LabCenter.Z + (double)Sample_Depth.Value);
Rhino.Geometry.Point3d[] Src = new Rhino.Geometry.Point3d[1] {
new Rhino.Geometry.Point3d(LabCenter.X, LabCenter.Y, LabCenter.Z + radius + (double)Sample_Depth.Value)
};
List <Rhino.Geometry.Point3d> Rec = new List <Rhino.Geometry.Point3d>();
for (int phi = 0; phi < 18; phi++)
{
for (int theta = 0; theta < 36; theta++)
{
double anglePhi = phi * Math.PI / 18;
double angleTheta = theta * Utilities.Numerics.PiX2 / 36;
Rec.Add(ArrayCenter + radius * new Rhino.Geometry.Point3d(Math.Cos(angleTheta) * Math.Cos(anglePhi), Math.Sin(angleTheta) * Math.Cos(anglePhi), Math.Sin(anglePhi)));
}
}
//for (int phi = 0; phi < 18; phi++)
// {
// double anglePhi = phi * Math.PI / 18;
// Rec.Add(ArrayCenter + radius * new Rhino.Geometry.Point3d(Math.Cos(anglePhi), 0, Math.Sin(anglePhi)));
// }
double fs = 62.5 * Utilities.Numerics.rt2 * Math.Pow(2, Scatter_Extent.SelectedIndex);
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec.ToArray());
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, fs, 1, Src);
Numeric.TimeDomain.Acoustic_Compact_FDTD FDTDS = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, fs, t, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.ScatteringLab, Utilities.PachTools.RPttoHPt(LabCenter), radius * 2, radius * 2, radius * 1.2 + (double)Sample_Depth.Value);
FDTDS.RuntoCompletion();
Numeric.TimeDomain.Microphone_Compact Micf = new Numeric.TimeDomain.Microphone_Compact(Rec.ToArray());
Numeric.TimeDomain.Signal_Driver_Compact SDf = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, fs, 1, Src);
Numeric.TimeDomain.Acoustic_Compact_FDTD FDTDF = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm_Ctrl, ref SDf, ref Micf, fs, t, Numeric.TimeDomain.Acoustic_Compact_FDTD.GridType.ScatteringLab, Utilities.PachTools.RPttoHPt(LabCenter) + new Hare.Geometry.Point(0, 0, (double)Sample_Depth.Value), radius * 2, radius * 2, radius * 1.2 + (double)Sample_Depth.Value);
FDTDF.RuntoCompletion();
samplefrequency = FDTDS.SampleFrequency;
Mic.reset();
result_signals = Mic.Recordings[0];
Micf.reset();
result_signals = Micf.Recordings[0];
//Calculate Scattering Coefficients
double[][] TimeS = Mic.Recordings[0];
double[][] TimeF = Micf.Recordings[0];
System.Numerics.Complex[][] FS = new System.Numerics.Complex[TimeS.Length][];
System.Numerics.Complex[][] FF = new System.Numerics.Complex[TimeS.Length][];
for (int i = 0; i < TimeS.Length; i++)
{
FS[i] = Audio.Pach_SP.FFT_General(TimeS[i], 0);
FF[i] = Audio.Pach_SP.FFT_General(TimeF[i], 0);
}
Scattering = new double[FS[0].Length];
for (int i = 0; i < FS[0].Length; i++)
{
System.Numerics.Complex sumFS2 = 0;
System.Numerics.Complex sumFF2 = 0;
System.Numerics.Complex sumFSFF = 0;
for (int j = 0; j < FS.Length; j++)
{
sumFS2 += System.Numerics.Complex.Pow(FS[j][i].Magnitude, 2);
sumFF2 += System.Numerics.Complex.Pow(FF[j][i].Magnitude, 2);
sumFSFF += FS[j][i] * System.Numerics.Complex.Conjugate(FF[j][i]);
//sumFS2 += System.Numerics.Complex.Pow(FS[j][i], 2);
//sumFF2 += System.Numerics.Complex.Pow(FF[j][i], 2);
//sumFSFF += FS[j][i] * System.Numerics.Complex.Conjugate(FF[j][i]);
}
System.Numerics.Complex sumReflected = sumFSFF / sumFF2;
System.Numerics.Complex Ratio = sumFF2 / sumFS2;
Scattering[i] = 1 - System.Numerics.Complex.Abs(sumReflected * sumReflected * Ratio);
}
Update_Scattering_Graph(null, null);
}
private void CalculateSim_Click(object sender, EventArgs e)
{
FC = new ForCall(Forw_proc);
Polygon_Scene Rm = PachTools.Get_Poly_Scene((double)Rel_Humidity.Value, (double)Air_Temp.Value, (double)Air_Pressure.Value, Atten_Method.SelectedIndex, EdgeFreq.Checked);
if (!Rm.Complete) return;
Rhino.Geometry.Point3d[] Src = PachTools.GetSource();
Rhino.Geometry.Point3d[] Rec = PachTools.GetReceivers().ToArray();
if (Src.Length < 1 || Rm == null) Rhino.RhinoApp.WriteLine("Model geometry not specified... Exiting calculation...");
Numeric.TimeDomain.Microphone_Compact Mic = new Numeric.TimeDomain.Microphone_Compact(Rec);
double fs = 137.8125 * Math.Pow(2, Selected_Extent.SelectedIndex);
samplefrequency = fs;
double df = 1d / ((double)CO_TIME.Value / 1000);
Numeric.TimeDomain.Signal_Driver_Compact SD = new Numeric.TimeDomain.Signal_Driver_Compact(Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse, df, 1, PachTools.GetSource());
FDTD = new Numeric.TimeDomain.Acoustic_Compact_FDTD(Rm, ref SD, ref Mic, fs, (double)CO_TIME.Value);
for (double f = df; f < fs; f += df)
{
FDTD.reset(f, Numeric.TimeDomain.Signal_Driver_Compact.Signal_Type.Sine_Pulse);
FDTD.RuntoCompletion();
Frequencies.Items.Add(string.Format("{0} Hz.", f), true);
}
Receiver_Choice.Text = "0";
result_signals = Mic.Recordings;
}
