/// <summary>
/// Returns the plot area coordinate of a value.
/// </summary>
/// <param name="value">The value to plot.</param>
/// <param name="currentRange">The range to use determine the coordinate.</param>
/// <param name="length">The length of the axis.</param>
/// <returns>The plot area coordinate of a value.</returns>
private static UnitValue GetPlotAreaCoordinate(object value, Range <DateTime> currentRange, double length)
{
if (currentRange.HasData)
{
DateTime dateTimeValue = ValueHelper.ToDateTime(value);
double rangelength = currentRange.Maximum.Ticks - currentRange.Minimum.Ticks;
double pixelLength = Math.Max(length - 1, 0);
return(new UnitValue((dateTimeValue.Ticks - currentRange.Minimum.Ticks) * (pixelLength / rangelength), Unit.Pixels));
}
return(UnitValue.NaN());
}
/// <summary>
/// The plot area coordinate of a value.
/// </summary>
/// <param name="value">The value for which to retrieve the plot area
/// coordinate.</param>
/// <returns>The plot area coordinate.</returns>
public override UnitValue GetPlotAreaCoordinate(object value)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
Range <UnitValue> range = GetPlotAreaCoordinateRange(value);
if (range.HasData)
{
double minimum = range.Minimum.Value;
double maximum = range.Maximum.Value;
return(new UnitValue(((maximum - minimum) / 2.0) + minimum, range.Minimum.Unit));
}
else
{
return(UnitValue.NaN());
}
}