public EmotionsChartPresenter(
IEmotionsChart chart,
EmotionStateChannel stateChannel,
SpectrumPowerChannel alphaLeft,
SpectrumPowerChannel betaLeft,
SpectrumPowerChannel alphaRight,
SpectrumPowerChannel betaRight,
EegIndexChannel indexChannel)
{
_stateChannel = stateChannel;
_alphaLeft = alphaLeft;
_betaLeft = betaLeft;
_alphaRight = alphaRight;
_betaRight = betaRight;
_indexChannel = indexChannel;
_chart = chart;
_chart.Mode = EmotionBarMode.Wait;
_stateChannel.LengthChanged += StateChannelLengthChanged;
_indexChannel.LengthChanged += _indexChannel_LengthChanged;
_alphaLeft.LengthChanged += _alphaLeft_LengthChanged;
_betaLeft.LengthChanged += _betaLeft_LengthChanged;
_alphaRight.LengthChanged += _alphaRight_LengthChanged;
_betaRight.LengthChanged += _betaRight_LengthChanged;
}
private void CalculateSpectrum()
{
if (_spectrumChannel == null)
{
return;
}
var readLength = (int)(SamplingFrequency * WindowDuration);
if (readLength <= 0)
{
return;
}
var offset = _spectrumChannel.TotalLength - readLength;
if (offset < 0)
{
offset = 0;
readLength = _spectrumChannel.TotalLength;
}
Spectrum = new Spectrum(_spectrumChannel.Info.Name,
_spectrumChannel.ReadData(offset, readLength, WindowType));
SpectrumPower = SpectrumPowerChannel.SpectrumPower(LowFrequency, HighFrequency, Spectrum.Data,
_spectrumChannel.HzPerSpectrumSample);
}
public IndexListItem(Control context, SpectrumPowerChannel spectrumPowerChannel, IEnumerable <string> channels, float lowFreq, float highFreq, double window, double overlap)
{
_context = context;
Text = spectrumPowerChannel.Info.Name;
SubItems.Add(channels.Aggregate("", (current, chan) => current + chan + " "));
SubItems.Add($"{lowFreq} - {highFreq} Hz");
SubItems.Add($"{window}/{overlap}");
SubItems.Add("0.0");
_spectrumPowerChannel = spectrumPowerChannel;
_spectrumPowerChannel.LengthChanged += SpectrumPowerChannelLengthChanged;
}
private void OnDeviceConnected()
{
BatteryChannel = new BatteryChannel(_currentDevice);
var deviceChannels = _currentDevice.Channels
.Where(x => x.Type == ChannelType.Signal)
.ToDictionary(channelInfo => channelInfo.Name, channelInfo => new EegChannel(_currentDevice, channelInfo));
if (deviceChannels.ContainsKey("T3") && deviceChannels.ContainsKey("O1"))
{
T3O1SignalChannel = new BipolarDoubleChannel(deviceChannels["T3"], deviceChannels["O1"]);
T3O1SpectrumChannel = new SpectrumChannel(T3O1SignalChannel);
if (deviceChannels.ContainsKey("T4") && deviceChannels.ContainsKey("O2"))
{
T4O21SignalChannel = new BipolarDoubleChannel(deviceChannels["T4"], deviceChannels["O2"]);
T4O2SpectrumChannel = new SpectrumChannel(T4O21SignalChannel);
IndexChannel = new EegIndexChannel(deviceChannels["T3"], deviceChannels["T4"], deviceChannels["O1"],
deviceChannels["O2"]);
IndexChannel.SetWeights(1.00, 1.00, 0.00, 0.00);
IndexChannel.Delay = 0.0;
IndexViewChannel = new EegIndexChannel(deviceChannels["T3"], deviceChannels["T4"], deviceChannels["O1"],
deviceChannels["O2"]);
IndexViewChannel.SetWeights(1.00, 1.00, 0.00, 1.00);
IndexViewChannel.Delay = 0.0;
AlphaLeftPowerChannel = new SpectrumPowerChannel(new List <SpectrumChannel> {
T3O1SpectrumChannel
}, 8, 14, "AlphaLeft");
BetaLeftPowerChannel = new SpectrumPowerChannel(new List <SpectrumChannel> {
T3O1SpectrumChannel
}, 14, 34, "BetaLeft");
AlphaRightPowerChannel = new SpectrumPowerChannel(new List <SpectrumChannel> {
T4O2SpectrumChannel
}, 8, 14, "AlphaRight");
BetaRightPowerChannel = new SpectrumPowerChannel(new List <SpectrumChannel> {
T4O2SpectrumChannel
}, 14, 34, "BetaRight");
ChannelsChanged?.Invoke(this, null);
}
}
}
private void _createIndexButton_Click(object sender, System.EventArgs e)
{
if (!float.TryParse(_startFrequencyTextBox.Text, out var startFreq))
{
MessageBox.Show("Wrong low frequency value", "Index creation", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
if (!float.TryParse(_stopFrequencyTextBox.Text, out var stopFreq))
{
MessageBox.Show("Wrong high frequency value", "Index creation", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
if (stopFreq <= startFreq)
{
MessageBox.Show("Wrong frequencies: high frequency must be greater than low", "Index creation", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
if (!double.TryParse(_indexWindowTextBox.Text, out var window))
{
MessageBox.Show("Wrong window duration value", "Index creation", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
if (!double.TryParse(_indexWindowOverlapTextBox.Text, out var overlap))
{
MessageBox.Show("Wrong overlap value", "Index creation", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
var checkedChannels = _channelsListBox.CheckedItems.OfType <DoubleSignalChannelWrap>().ToList();
var spectrumPowerChannel = new SpectrumPowerChannel(checkedChannels.Select(x => new SpectrumChannel(x)), startFreq, stopFreq, _indexNameTextBox.Text, window, overlap);
_indicesListView.Items.Add(new IndexListItem(this, spectrumPowerChannel, checkedChannels.Select(x => x.ToString()), startFreq, stopFreq, window, overlap));
}
