protected override void SetupChart()
{
this.flexChart1.Header.Content = "Relationship between Production and Cost";
this.flexChart1.Header.Style.Font = StyleInfo.ChartHeaderFont;
this.flexChart1.DataSource = DataService.GetUnitCostData();
this.flexChart1.ChartType = ChartType.LineSymbols;
this.flexChart1.BindingX = "Units";
var closePrice = new Series
{
Binding = "Cost",
Name = "Cost",
};
_trendLine = new C1.Win.Chart.TrendLine()
{
Name = "Trend Line",
Binding = "Cost",
Order = 4,
FitType = FitType.Linear,
};
this.flexChart1.Series.Add(closePrice);
this.flexChart1.Series.Add(_trendLine);
this.flexChart1.AxisX.Title = "Quantity";
this.flexChart1.AxisX.TitleStyle.Font = StyleInfo.AxisTitleFont;
this.flexChart1.AxisY.Title = "Per Unit Cost";
this.flexChart1.AxisY.TitleStyle.Font = StyleInfo.AxisTitleFont;
this.flexChart1.Rendered += FlexChart1_Rendered;
this.flexChart1.MouseUp += (s, e) => { _clickedItem = null; };
this.flexChart1.MouseLeave += (s, e) => { _clickedItem = null; };
this.flexChart1.MouseDown += FlexChart1_MouseDown;
this.flexChart1.MouseMove += FlexChart1_MouseMove;
}
string GetEquationString(C1.Win.Chart.TrendLine trendLine)
{
string result = String.Empty;
int X = 1, Y0 = 0;
switch (trendLine.FitType)
{
case FitType.Linear:
result = String.Format("y={1:0.0000}x{0:+0.0000;-0.0000;+0}", trendLine.Coefficients[0], trendLine.Coefficients[1]);
break;
case FitType.Exponent:
result = String.Format("y={0:0.0000}e<sup>{1:0.0000}x</sup>", trendLine.Coefficients[0], trendLine.Coefficients[1]);
break;
case FitType.Logarithmic:
result = String.Format("y={1:0.0000}ln(x){0:+0.0000;-0.0000;+0}", trendLine.Coefficients[0], trendLine.Coefficients[1]);
break;
case FitType.Power:
result = String.Format("y={0:0.0000}x<sup>{1:0.0000}</sup>", trendLine.Coefficients[0], trendLine.Coefficients[1]);
break;
case FitType.Polynom:
result = String.Format("{1:+0.0000;-0.0000;+0}x{0:+0.0000;-0.0000;+0}", trendLine.Coefficients[0], trendLine.Coefficients[1]);
for (int i = 2; i <= (int)_udOrder.Value; i++)
{
result = result.Insert(0, String.Format("{0:+0.000;-0.0000;+0}x<sup>{1}</sup>", trendLine.Coefficients[i], i));
}
result = result.Remove(0, 1).Insert(0, "y=");
break;
case FitType.Fourier:
result = String.Format("{0:+0.0000;-0.0000;+0}", trendLine.Coefficients[0]);
for (int i = 2, a = 1; i <= (int)_udOrder.Value; i++, a = i % 2 == 0 ? a + 1 : a)
{
result += String.Format("{0:+0.000;-0.0000;+0}{2}({1}x)", trendLine.Coefficients[i - 1], a == 1 ? "" : a.ToString(), (i) % 2 == 0 ? "cos" : "sin");
}
result = result.Remove(0, 1).Insert(0, "y=");
break;
case FitType.MaxX: result = "x=" + trendLine.GetValues(X).Max(); break;
case FitType.MinX: result = "x=" + trendLine.GetValues(X).Min(); break;
case FitType.MaxY: result = "y=" + trendLine.GetValues(Y0).Max(); break;
case FitType.MinY: result = "y=" + trendLine.GetValues(Y0).Min(); break;
case FitType.AverageX: result = "x=" + trendLine.GetValues(X).Average(); break;
case FitType.AverageY: result = "y=" + trendLine.GetValues(Y0).Average(); break;
}
return(result);
}
