private Chart GenerateChart(SpectrumViewContext spectrum)
{
var chart = new Chart();
var area = chart.ChartAreas.Add("spectrum");
Series signalSeries = new Series("spectrum");
signalSeries.ChartType = SeriesChartType.Line;
signalSeries.ChartArea = "spectrum";
signalSeries.Color = spectrum.LinearGraphics.LineColor;
area.AxisX.IsLabelAutoFit = false;
var interval = (int)Math.Round((spectrum.Transformed.GetFreqSize() / 15.0) * spectrum.Transformed.GetFreqDiff());
area.AxisX.Interval = interval;
area.AxisX2.LineColor = Color.Red;
var freqs = spectrum.Transformed.GetFreqsAtTime(timeInd);
for (var i = 0; i < freqs.Length; i++)
{
var mod = freqs[i].Coords.Magnitude;
//Spectral density = |F|*|F|/T, where F - Fourier Transform, and T - time
signalSeries.Points.AddXY(freqs[i].Freq, (mod * mod) / spectrum.Origin.GetLength());
}
chart.Series.Add(signalSeries);
return(chart);
}
public Panel View(SpectrumViewContext context)
{
var pan = new TableLayoutPanel
{
Dock = DockStyle.Fill
};
lastSpectrum = views[currentView].View(context);
lastSpectrum.Dock = DockStyle.Fill;
var controlPan = new FlowLayoutPanel
{
Dock = DockStyle.Top,
FlowDirection = FlowDirection.LeftToRight
};
controlPan.Controls.Add(viewChangeBox);
controlPan.Controls.Add(configButt);
pan.RowStyles.Add(new RowStyle(SizeType.Absolute, 50));
pan.RowStyles.Add(new RowStyle(SizeType.Percent, 90));
pan.Controls.Add(controlPan, 0, 0);
pan.Controls.Add(lastSpectrum, 0, 1);
lastView = pan;
lastContext = context;
return(pan);
}
public Panel View(SpectrumViewContext context)
{
var pan = new Panel
{
Dock = DockStyle.Fill
};
var intensities = new byte[context.Transformed.GetTimeSize(), context.Transformed.GetFreqSize()];
for (var i = 0; i < intensities.GetLength(0); i++)
{
var density = context.Transformed.GetDensitiesAtTime(i)
.ToArray();
var max = density.Max();
for (var j = 0; j < intensities.GetLength(1); j++)
{
intensities[i, j] = max > 0 ? (byte)(density[intensities.GetLength(1) - j - 1] * 255 / max) : (byte)0;
}
}
var box = DrawSpectrogram(pan.ClientSize, intensities);
pan.Controls.Add(box);
return(pan);
}
public Panel View(SpectrumViewContext context)
{
var pan = new Panel
{
Dock = DockStyle.Fill
};
var chart = GenerateChart(context);
chart.Dock = DockStyle.Fill;
pan.Controls.Add(chart);
return(pan);
}
//private ScrollBar freqScroll;
//private ScrollBar timeScroll;
public Panel View(SpectrumViewContext context)
{
var pan = new TableLayoutPanel
{
Dock = DockStyle.Fill,
//FlowDirection = FlowDirection.TopDown,
};
pan.ColumnStyles.Add(new ColumnStyle(SizeType.Percent, 100));
var round = new Panel
{
Dock = DockStyle.Fill,
BackColor = Color.Green,
};
round.Paint += (sender, ev) =>
{
var freq = context.Transformed.GetFreqsAtTime(timeInd)[freqInd].Freq;
var center = context.Transformed.GetMassAtFreqTime(timeInd, freqInd);
var points = context.Origin.GetValues().Select((v, i) => Complex.FromPolarCoordinates(v, -i * freq * 2 * Math.PI / context.Origin.GetLength() /* * timeFactor */))
.ToArray();
var max = points.Select(p => p.Magnitude)
.Max();
if (max != 0)
{
points = points.Select(p => p / max).ToArray();
center /= max;
}
ev.Graphics.Clear(Color.White);
ev.Graphics.DrawImage(RoundDrawer.GetView(round.ClientSize, center, points, context.RoundGraphics), new Point(0, 0));
};
pan.RowStyles.Add(new RowStyle(SizeType.Percent, 100));
pan.Controls.Add(round);
//задаем скролл частот
if (context.Transformed.GetTimeSize() > 0)
{
var freqControl = new Panel
{
Dock = DockStyle.Fill,
AutoSize = true,
Margin = new Padding(0, 0, 0, 40)
//FlowDirection = FlowDirection.TopDown
};
var freqLabel = new Label
{
Dock = DockStyle.Top,
AutoSize = true,
Text = "Текущая частота: " + context.Transformed.GetFreqsValues()
.First()
.ToString()
};
var freqScroll = new HScrollBar
{
Minimum = 0,
Maximum = context.Transformed.GetFreqSize() - 1,
Value = freqInd,
Dock = DockStyle.Top
};
freqScroll.ValueChanged += (sender, ev) => {
freqInd = freqScroll.Value;
freqLabel.Text = String.Format("Текущая частота: {0:0.##}", context.Transformed.GetFreqsValues()
.Skip(freqScroll.Value)
.First());
round.Invalidate();
};
freqControl.Controls.Add(freqScroll);
freqControl.Controls.Add(freqLabel);
pan.RowStyles.Add(new RowStyle(SizeType.AutoSize));
pan.Controls.Add(freqControl);
}
return(pan);
}
