public void UpdateBody(IRangeAxis rangeAxis)
{
if (Body == null)
{
return;
}
double highPointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(High)).Value;
double lowPointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(Low)).Value;
double openPointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(Open)).Value;
double closePointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(Close)).Value;
Thickness margin;
if (openPointY > closePointY)
{
margin = new Thickness(0, highPointY - openPointY, 0, closePointY - lowPointY);
}
else
{
margin = new Thickness(0, highPointY - closePointY, 0, openPointY - lowPointY);
}
Body.Margin = margin;
}
/// <summary>
/// Overrides the range requested from the axis. The default range is
/// the range of values on to be plotted on the axis.
/// </summary>
/// <param name="rangeAxis">The axis to retrieve the range for.</param>
/// <param name="range">The range of values that are plotted on the
/// axis.</param>
/// <returns>A new range.</returns>
protected virtual Range <IComparable> OverrideRequestedAxisRange(IRangeAxis rangeAxis, Range <IComparable> range)
{
if (range.HasData)
{
double minimumCoordinate = rangeAxis.GetPlotAreaCoordinate(range.Minimum);
double maximumCoordinate = rangeAxis.GetPlotAreaCoordinate(range.Maximum);
if (ValueHelper.CanGraph(minimumCoordinate) && ValueHelper.CanGraph(maximumCoordinate))
{
minimumCoordinate -= RangeAxisMargin;
maximumCoordinate += RangeAxisMargin;
Range <IComparable> minimumOffsetRange = rangeAxis.GetPlotAreaCoordinateValueRange(minimumCoordinate);
Range <IComparable> maximumOffsetRange = rangeAxis.GetPlotAreaCoordinateValueRange(maximumCoordinate);
if (minimumOffsetRange.HasData && maximumOffsetRange.HasData)
{
return(new Range <IComparable>(
minimumOffsetRange.Minimum,
maximumOffsetRange.Maximum));
}
}
}
return(range);
}
public void UpdateBody(IRangeAxis rangeAxis)
{
if (OpenLine == null || CloseLine == null || MinMaxLine == null)
{
return;
}
Double highPointY = rangeAxis.GetPlotAreaCoordinate(High);
Double lowPointY = rangeAxis.GetPlotAreaCoordinate(Low);
Double openPointY = rangeAxis.GetPlotAreaCoordinate(Open);
Double closePointY = rangeAxis.GetPlotAreaCoordinate(Close);
OpenLine.Width = (Int32)(((DataPoint)this).Width / 2);
CloseLine.Width = (Int32)(((DataPoint)this).Width / 2);
Double openLineMargin = openPointY - lowPointY;
if ((Int32)openLineMargin >= (Int32)this.Height)
{
openLineMargin = this.Height - 1;
}
if (openLineMargin < 0.0)
{
openLineMargin = 0.0;
}
Double closeLineMargin = highPointY - closePointY;
if ((Int32)closeLineMargin >= (Int32)this.Height)
{
closeLineMargin = this.Height - 1;
}
if (closeLineMargin < 0.0)
{
closeLineMargin = 0.0;
}
OpenLine.Margin = new Thickness(0, 0, 0, openLineMargin);
CloseLine.Margin = new Thickness(0, closeLineMargin, 0, 0);
MinMaxLine.Width = 2.0;
}
/// <summary>
/// Get a point in screen coordinates.
/// </summary>
/// <param name="x">Independent value.</param>
/// <param name="function">The function.</param>
/// <param name="independent">The independent axis.</param>
/// <param name="dependent">The dependent axis.</param>
/// <returns>The point in screen coordinates.</returns>
private Point GetPoint(double x, Func <double, double> function, IRangeAxis independent, IRangeAxis dependent)
{
// Get the dependent value
double y = double.NaN;
try
{
y = function(x);
}
catch (DivideByZeroException)
{
}
// Map the actual values into coordinate values
return(new Point(
independent.GetPlotAreaCoordinate(x).Value,
Math.Min(
Math.Max(
ActualHeight - dependent.GetPlotAreaCoordinate(y).Value,
-1),
ActualHeight + 1)));
}
/// <summary>
/// Get a point in screen coordinates.
/// </summary>
/// <param name="x">Independent value.</param>
/// <param name="function">The function.</param>
/// <param name="independent">The independent axis.</param>
/// <param name="dependent">The dependent axis.</param>
/// <returns>The point in screen coordinates.</returns>
private Point GetPoint(double x, Func<double, double> function, IRangeAxis independent, IRangeAxis dependent)
{
// Get the dependent value
double y = double.NaN;
try
{
y = function(x);
}
catch (DivideByZeroException)
{
}
// Map the actual values into coordinate values
return new Point(
independent.GetPlotAreaCoordinate(x).Value,
Math.Min(
Math.Max(
ActualHeight - dependent.GetPlotAreaCoordinate(y).Value,
-1),
ActualHeight + 1));
}
public void UpdateBody(IRangeAxis rangeAxis)
{
if (Body == null)
return;
double highPointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(High)).Value;
double lowPointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(Low)).Value;
double openPointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(Open)).Value;
double closePointY = rangeAxis.GetPlotAreaCoordinate(ValueHelper.ToDouble(Close)).Value;
Thickness margin;
if (openPointY > closePointY)
{
margin = new Thickness(0, highPointY - openPointY, 0, closePointY - lowPointY);
}
else
{
margin = new Thickness(0, highPointY - closePointY, 0, openPointY - lowPointY);
}
Body.Margin = margin;
}