private void createAxis()
{
//Configuration of X-Axis label
progressionChart.AxisX.Clear(); //Clear to redraw X-Axis labels
Axis xAxis = new Axis();
xAxis.LabelFormatter = (Func <double, string>)((IRLVProgressionChartVM)ViewModel).XLabelFormatter;
xAxis.Title = ((IRLVProgressionChartVM)ViewModel).XAxisTitle;
var chartPointsCount = chartValues.Count;
if (chartPointsCount <= 0)
{
return;
}
double max = chartValues.Select(a => a.Time).Max();
double min = chartValues.Select(a => a.Time).Min();
double max_min = max - min;
double step = max_min / 20;
if (step > 0 || chartPointsCount == 1)
{
if (chartPointsCount == 1)
{
step = max / 20;
}
var newStep = Math.Ceiling(max / step);
if (chartPointsCount <= 10 && chartPointsCount > 1)
{
newStep = 10;
}
xAxis.Separator = new LiveCharts.Wpf.Separator {
Step = step, IsEnabled = false
};
xAxis.LabelsRotation = 20;
progressionChart.AxisX.Add(xAxis); //Add back X-Axis to chart
//Configuration of Y-Axis label
progressionChart.AxisY.Clear(); //Clear to redraw Y-Axis labels
Axis yAxis = new Axis();
yAxis.LabelFormatter = (Func <double, string>)((IRLVProgressionChartVM)ViewModel).YLabelFormatter;
yAxis.Title = ((IRLVProgressionChartVM)ViewModel).YAxisTitle;
progressionChart.AxisY.Add(yAxis); //Add back Y-Axis to chart
progressionChart.Zoom = ZoomingOptions.Xy;
}
}
public async Task WhenCreatingViewModelForMetricChartWithDataThenThenItIsCreatedSuccessfully()
{
// Create view model
MetricChartPropertyControlViewModel viewModel = await this.CreateViewModel();
// Verify results
Assert.IsFalse(viewModel.ReadChartValuesTask.IsRunning);
ChartValues <DateTimePoint> points = viewModel.ReadChartValuesTask.Result;
Assert.IsNotNull(points);
Enumerable.SequenceEqual(this.timestamps, points.Select(p => p.DateTime));
Enumerable.SequenceEqual(this.values, points.Select(p => p.Value));
}
public static (SeriesCollection ValueSeries, List <string> Labels) GetOhlcChartData(IReadOnlyList <IStockQuoteFromDataSource> stockQuoteFromDataSources)
{
var stockSeries = new ChartValues <OhlcPoint>();
var labels = new List <string>();
foreach (IStockQuoteFromDataSource item in stockQuoteFromDataSources)
{
stockSeries.Add(new OhlcPoint
{
Open = (double)item.OpenPrice,
High = (double)item.HighPrice,
Low = (double)item.LowPrice,
Close = (double)item.ClosePrice
});
labels.Add(item.TradeDateTime.ToShortDateString());
}
var seriesCol = new SeriesCollection
{
new OhlcSeries()
{
Title = stockQuoteFromDataSources[0].StockId,
Values = stockSeries
},
new LineSeries
{
Title = stockQuoteFromDataSources[0].StockId,
Values = new ChartValues <double>(stockSeries.Select(x => x.Close)),
Fill = Brushes.Transparent
}
};
return(seriesCol, labels);
}
// static readonly CancellationTokenSource s_cts = new CancellationTokenSource();
public Graph()
{
InitializeComponent();
var mapper = Mappers.Xy <MeasureModel>()
.X(model => model.ValueX) //use DateTime.Ticks as X
.Y(model => model.ValueY); //use the value property as Y
Charting.For <MeasureModel>(mapper);
// ChartValues = new ChartValues<MeasureModel>();
ChartValues = SQLAdapter.FetchAsync().Result;
LineSeries lineSeries = new LineSeries
{
Title = "Длина волны",
Values = ChartValues,
StrokeThickness = 1,
Stroke = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(0, 0, 0)),
Fill = System.Windows.Media.Brushes.Transparent,
LineSmoothness = 0,
PointGeometrySize = 0,
PointForeground = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(0, 0, 0)),
Opacity = 0,
OpacityMask = new System.Windows.Media.SolidColorBrush(System.Windows.Media.Color.FromRgb(0, 0, 0))
};
SeriesCollection = new SeriesCollection();
SeriesCollection.Add(lineSeries);
MaxX = ChartValues.Select(x => x.ValueX).Max();
MinX = ChartValues.Select(x => x.ValueX).Min();
MinY = 0;
DataContext = this;
}
private void CalculateRegression()
{
var x = Vector.Create(ChartValues.Select(v => v.NDouble).ToArray());
var y = Vector.Create(ChartValues.Select(v => v.TotDouble).ToArray());
_regression = new SimpleRegressionModel(y, x);
_regression.Fit();
UpperValues.Clear();
LowerValues.Clear();
RegressionValues.Clear();
NToNValues.Clear();
XAxis.Clear();
YAxis.Clear();
var max = ChartValues.Max(p => p.NDouble);
XAxis.Add(new ObservablePoint(0, 0));
XAxis.Add(new ObservablePoint(0, max));
YAxis.Add(new ObservablePoint(0, 0));
YAxis.Add(new ObservablePoint(max, 0));
NToNValues.Add(new ObservablePoint(0, 0));
NToNValues.Add(new ObservablePoint(max, max));
var ci = _regression.GetPredictionInterval(0, .99);
UpperValues.Add(new ObservablePoint(0, ci.UpperBound));
LowerValues.Add(new ObservablePoint(0, ci.LowerBound));
RegressionValues.Add(new ObservablePoint(0, ci.Center));
ci = _regression.GetPredictionInterval(max, .99);
UpperValues.Add(new ObservablePoint(max, ci.UpperBound));
LowerValues.Add(new ObservablePoint(max, ci.LowerBound));
RegressionValues.Add(new ObservablePoint(max, ci.Center));
var above = 0.0;
var below = 0.0;
foreach (var point in ChartValues)
{
var interval = _regression.GetPredictionInterval(point.NDouble, .99);
if (point.TotDouble <= interval.UpperBound && point.TotDouble > interval.Center)
{
above++;
}
else if (point.TotDouble <= interval.Center && point.TotDouble >= interval.LowerBound)
{
below++;
}
}
Console.WriteLine("Above Center: " + above / ChartValues.Count);
Console.WriteLine("Below Center: " + below / ChartValues.Count);
}
private void GetButton_Click(object sender, RoutedEventArgs e)
{
ushort[] b = ModbusCommand.command.Operation(Getter.channel_ch1);
var x = (double)((float)b[0]) / 1000 + 1520; //26 page nm
var y = (double)Utility.GetSingle(0, b[1]);
string s = x.ToString("R") + " " + y.ToString("R") + Environment.NewLine;
Showblock.Text += s;
MeasureModel measureModel = new MeasureModel()
{
ValueX = x, ValueY = y
};
if (_values.Count > 800)
{
_values.RemoveAt(0);
}
_values.Add(measureModel);
Graph2.MaxX = _values.Select(m => m.ValueX).Max();
Graph2.MinX = _values.Select(m => m.ValueX).Min();
Graph2.MinY = 0;
// Graph2.max = 0;
}
private void LoadJson(string fileFullPath)
{
try
{
ohlcChartValues.Clear();
volumeChartValues.Clear();
string jsonString = File.ReadAllText(fileFullPath);
var candles = JsonConvert.DeserializeObject <List <MarketCandle> >(jsonString);
foreach (var candle in candles.Take(250))
{
var ohlc = new OhlcPoint((double)candle.OpenPrice, (double)candle.HighPrice, (double)candle.LowPrice, (double)candle.ClosePrice);
ohlcChartValues.Add(ohlc);
volumeChartValues.Add(new VolumePair(candle.QuoteCurrencyVolume, (ohlc.Close >= ohlc.Open)));
}
Y2Max = volumeChartValues.Select(v => v.Volume).Max() * 5; // stretch the y-axis by 5x.
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}