/// <summary>
/// Determines the Ticks to be plotted for a given TimeUnit and Value.
/// </summary>
/// <param name="timespan">The TimeSpane for the calculation.</param>
/// <param name="datetime">The DateTime for which the calculation is being made.</param>
/// <param name="timeunit">The TimeUnit for the increase.</param>
/// <param name="timevalue">The number of TimeUnits for which the increase is to be made.</param>
/// <returns>Tick value for teh specified parameters.</returns>
internal static long GetTickIncrease(TimeSpan timespan, DateTime datetime, TimeFrequency.TimeUnit timeunit, int timevalue)
{
long ticks;
DateTime forwardDate;
switch (timeunit)
{
case TimeFrequency.TimeUnit.Year:
// Determine the number of ticks represented by the increase
forwardDate = datetime.AddYears(timevalue);
ticks = forwardDate.Ticks - datetime.Ticks;
break;
case TimeFrequency.TimeUnit.Month:
// Determine the number of ticks represented by the increase
forwardDate = datetime.AddMonths(timevalue);
ticks = forwardDate.Ticks - datetime.Ticks;
break;
case TimeFrequency.TimeUnit.Week:
case TimeFrequency.TimeUnit.Day:
case TimeFrequency.TimeUnit.Hour:
case TimeFrequency.TimeUnit.Minute:
case TimeFrequency.TimeUnit.Second:
// Just add the normal ticks
ticks = timespan.Ticks;
break;
default:
// Just add the normal ticks
ticks = timespan.Ticks;
break;
}
return(ticks);
}
/// <summary>
/// Determines the Ticks to be plotted for a given TimeUnit and Value rounded to the interval.
/// </summary>
/// <param name="timespan">The TimeSpane for the calculation.</param>
/// <param name="datetime">The DateTime for which the calculation is being made.</param>
/// <param name="timeunit">The TimeUnit for the increase.</param>
/// <param name="timevalue">The number of TimeUnits for which the increase is to be made.</param>
/// <returns>Tick value for teh specified parameters.</returns>
internal static long GetTickIncreaseRounded(TimeSpan timespan, DateTime datetime, TimeFrequency.TimeUnit timeunit, int timevalue)
{
long ticks = AxisHelper.GetTickIncrease(timespan, datetime, timeunit, timevalue);
DateTime endTime = datetime.AddTicks(ticks);
// Round Up to the nearest Interval
double remainingTicks = endTime.Ticks % ticks;
long ticksToAdd = ticks - (long)remainingTicks;
if (endTime.Ticks + ticksToAdd < DateTime.MaxValue.Ticks)
{
ticks += ticksToAdd;
}
return(ticks);
}
