/// <summary>
/// Gets the adjusted start date of the Axis based on the data supplied and the time interval.
/// </summary>
/// <param name="startTime">System.DateTime for the Start axis time.</param>
/// <param name="endTime">System.DateTime for the End axis time.</param>
/// <param name="frequency">TimeFrequency to be used for calculating the axis end date.</param>
internal static void AdjustAxisStartDate(ref DateTime startTime, ref DateTime endTime, TimeFrequency frequency)
{
// see if points are less than the visible window and if so adjust start date
long tickRange = endTime.Ticks - startTime.Ticks;
if (tickRange < frequency.Ticks)
{
DateTime adjustedTime;
long pastTicks, majorTicks;
pastTicks = frequency.Ticks - tickRange;
if (startTime.Ticks > pastTicks)
{
if (frequency.Unit == TimeFrequency.TimeUnit.Year)
{
adjustedTime = startTime.AddTicks(-pastTicks);
adjustedTime = new DateTime(adjustedTime.Year, 1, 1);
}
else
{
majorTicks = AxisHelper.GetTickIncrease(frequency.MajorInterval, startTime, frequency.MajorUnit, frequency.MajorValue);
adjustedTime = startTime.AddTicks(-pastTicks + majorTicks);
adjustedTime = AxisHelper.GetAxisStartDate(adjustedTime, frequency);
}
}
else
{
adjustedTime = DateTime.MinValue;
}
// have to adjust the start and end dates but not lower the end date
DateTime newStartTime = adjustedTime;
DateTime newEndTime = adjustedTime.AddTicks(frequency.Ticks);
if (newEndTime < endTime)
{
if (frequency.Unit == TimeFrequency.TimeUnit.Year)
{
// set the start time but only if still lowers the start date
if (newStartTime.AddYears(1) < startTime)
{
newStartTime = newStartTime.AddYears(1);
}
newEndTime = newEndTime.AddYears(1);
}
else
{
majorTicks = AxisHelper.GetTickIncrease(frequency.MajorInterval, newEndTime, frequency.MajorUnit, frequency.MajorValue);
newEndTime = newEndTime.AddTicks(majorTicks);
// increment the start time but only if still lowers the start date
majorTicks = AxisHelper.GetTickIncrease(frequency.MajorInterval, newStartTime, frequency.MajorUnit, frequency.MajorValue);
if (newStartTime.AddTicks(majorTicks) < startTime)
{
newStartTime = newStartTime.AddTicks(majorTicks);
}
}
}
// set the new start and end time
startTime = newStartTime;
endTime = newEndTime;
}
return;
}
/// <summary>
/// Gets the Axis design based on the interval.
/// </summary>
/// <param name="visibleWindowTicks">Number of ticks in the visible window.</param>
/// <returns>Returns TimeFrequency with Major and Minor intervals based on the graph interval.</returns>
internal static TimeFrequency GetAxisDesign(long visibleWindowTicks)
{
TimeSpan timeSpanOfWindow = new TimeSpan(visibleWindowTicks);
TimeFrequency frequency = new TimeFrequency();
if (timeSpanOfWindow == TimeSpan.FromMinutes(5))
{
// 5 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 5;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Second;
frequency.MinorValue = 30;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromMinutes(10))
{
// 10 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 10;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromMinutes(15))
{
// 15 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 15;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromMinutes(30))
{
// 30 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 30;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 5;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(1))
{
// 1 Hour
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 1;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 15;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 5;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(2))
{
// 2 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 2;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 30;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 10;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(4))
{
// 4 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 4;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 15;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(6))
{
// 6 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 6;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 30;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(8))
{
// 8 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 8;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(12))
{
// 12 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 12;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 4;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(24))
{
// 24 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 24;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 6;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(36))
{
// 36 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 36;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 6;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 3;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHourDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHourDay;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(48))
{
// 48 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 48;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 12;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 3;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHourDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHourDay;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(72))
{
// 72 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 72;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 24;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 6;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHourDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHourDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(5))
{
// 5 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 5;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 12;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(7))
{
// 1 Week or 7 Days
frequency.Unit = TimeFrequency.TimeUnit.Week;
frequency.Value = 1;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 12;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(10))
{
// 10 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 10;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(14))
{
// 2 Weeks or 14 Days
frequency.Unit = TimeFrequency.TimeUnit.Week;
frequency.Value = 2;
frequency.MajorUnit = TimeFrequency.TimeUnit.Week;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(15))
{
// 15 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 15;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(20))
{
// 20 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 20;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 5;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(28))
{
// 4 Weeks or 28 Days
frequency.Unit = TimeFrequency.TimeUnit.Week;
frequency.Value = 4;
frequency.MajorUnit = TimeFrequency.TimeUnit.Week;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(30))
{
// 30 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 30;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 10;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 5;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(31))
{
// 1 Month
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 1;
frequency.MajorUnit = TimeFrequency.TimeUnit.Week;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonth;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonth;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(62))
{
// 2 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 2;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Week;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonth;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonth;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(92))
{
// 3 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 3;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Week;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonth;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonth;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(184))
{
// 6 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 6;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Week;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(276))
{
// 9 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 9;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(366))
{
// 1 Year or 12 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 12;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(550))
{
// 18 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 18;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(731))
{
// 2 Years or 24 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 24;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 6;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 2;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(1827))
{
// 5 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 5;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 3;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(3653))
{
// 10 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 10;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 6;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(7305))
{
// 20 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 20;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 5;
frequency.MinorUnit = TimeFrequency.TimeUnit.Year;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(36525))
{
// 100 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 100;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 20;
frequency.MinorUnit = TimeFrequency.TimeUnit.Year;
frequency.MinorValue = 5;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
System.Diagnostics.Debug.Assert(frequency.Value != 0, GraphingResources.AxisHelperInvalidFrequency);
return(frequency);
}
/// <summary>
/// Gets the end date for the Axis based on the data supplied and the time frequency.
/// </summary>
/// <param name="dateTime">System.DateTime for the last data point.</param>
/// <param name="frequency">TimeFrequency to be used for calculating the axis end date.</param>
/// <returns>DateTime to be used for the last interval.</returns>
internal static DateTime GetAxisEndDate(DateTime dateTime, TimeFrequency frequency)
{
DateTime endTime = DateTime.MaxValue;
DateTime intervalTime;
long ticks;
int month, days;
switch (frequency.MajorUnit)
{
case TimeFrequency.TimeUnit.Year:
case TimeFrequency.TimeUnit.Month:
case TimeFrequency.TimeUnit.Week:
// ensure aligned to the minor boundary
if (frequency.MinorUnit == TimeFrequency.TimeUnit.Year)
{
// ensure last day of the year
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
intervalTime = dateTime.AddTicks(ticks);
endTime = new DateTime(intervalTime.Year, 12, 31);
// now ensure that the actual end time is the first day of the next period
endTime = endTime.AddDays(1);
}
else if (frequency.MinorUnit == TimeFrequency.TimeUnit.Month)
{
// ensure last day of the month
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
intervalTime = dateTime.AddTicks(ticks);
month = (((intervalTime.Month - 1) / frequency.MinorValue) + 1) * frequency.MinorValue;
days = DateTime.DaysInMonth(intervalTime.Year, month);
endTime = new DateTime(intervalTime.Year, month, days);
// now ensure that the actual end time is the first day of the next period
endTime = endTime.AddDays(1);
}
else if (frequency.MinorUnit == TimeFrequency.TimeUnit.Week)
{
// ensure last day of the week
TimeSpan tt = dateTime.Subtract(DateTime.MinValue);
days = (int)tt.TotalDays;
days = days - (days % 7) + 7 + (frequency.MinorValue * 7);
endTime = DateTime.MinValue.Add(new TimeSpan(days, 0, 0, 0));
}
else
{
ticks = AxisHelper.GetTickIncreaseRounded(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
endTime = dateTime.AddTicks(ticks);
}
break;
case TimeFrequency.TimeUnit.Day:
case TimeFrequency.TimeUnit.Hour:
case TimeFrequency.TimeUnit.Minute:
case TimeFrequency.TimeUnit.Second:
default:
ticks = AxisHelper.GetTickIncreaseRounded(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
endTime = dateTime.AddTicks(ticks);
break;
}
return(endTime);
}
/// <summary>
/// Renders the X Axis line.
/// </summary>
/// <param name="time">Time of the axis.</param>
/// <param name="frequency">Frequency of the axis.</param>
/// <param name="majorInterval">Value indicating whether the current axis is major interval.</param>
/// <returns>A value indicating whether the rendering was successful.</returns>
private bool TryDrawVerticalAxisLine(DateTime time, TimeFrequency frequency, bool majorInterval)
{
// thise code is for the lines on the Dynamic pLotting area. They extend up for scolling, and need to reach to max y
// value.
double x = this.GetXForDate(time);
if (this.ShowGridLines == GridLineVisibility.Both || this.ShowGridLines == GridLineVisibility.Vertical)
{
if (majorInterval || (this.ShowMinorGridLines == GridLineVisibility.Vertical || this.ShowMinorGridLines == GridLineVisibility.Both))
{
Path path = new Path();
path.Stroke = this.GridLineBrush;
path.StrokeThickness = this.GridLineThickness;
LineGeometry geo = this.GetXAxisGridLine(x);
path.Data = geo;
if (!this.Minimized)
{
this.DynamicPlotLayer.Children.Add(path);
}
else
{
this.MinimizedPlotLayer.Children.Add(path);
}
}
}
TextBlock axisLabel = null;
if (majorInterval)
{
axisLabel = this.xaxisLabelTemplate.LoadContent() as TextBlock;
axisLabel.FontFamily = this.FontFamily;
if (axisLabel != null)
{
axisLabel.Text = time.ToString(frequency.LabelFormat, CultureInfo.CurrentCulture);
}
}
bool showTicks = this.CanShowXAxisTicks(majorInterval);
this.PlotTimeTextBlock(axisLabel, x, showTicks);
return true;
}
/// <summary>
/// Gets the start date of the Axis based on the data supplied and the time interval.
/// </summary>
/// <param name="dateTime">System.DateTime for the first data point.</param>
/// <param name="frequency">TimeFrequency to be used for calculating the axis end date.</param>
/// <returns>DateTime to be used for the first interval.</returns>
internal static DateTime GetAxisStartDate(DateTime dateTime, TimeFrequency frequency)
{
DateTime startTime = DateTime.MinValue;
DateTime intervalTime;
TimeSpan tt;
long ticks;
int month;
switch (frequency.MajorUnit)
{
case TimeFrequency.TimeUnit.Year:
case TimeFrequency.TimeUnit.Month:
case TimeFrequency.TimeUnit.Week:
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
if (dateTime.Ticks > ticks)
{
// ensure year aligned to the major boundary - start of year
intervalTime = dateTime.AddTicks(-ticks);
if (frequency.MajorUnit == TimeFrequency.TimeUnit.Year)
{
startTime = new DateTime(intervalTime.Year, 1, 1);
}
else if (frequency.MajorUnit == TimeFrequency.TimeUnit.Month)
{
// ensure month aligned to major boundary value - start of month
month = intervalTime.Month - ((intervalTime.Month - 1) % frequency.MajorValue);
startTime = new DateTime(intervalTime.Year, month, 1);
}
else
{
// ensure week aligned to major boundary value - start of week
tt = intervalTime.Subtract(DateTime.MinValue);
int days = (int)tt.TotalDays;
days -= (days % 7);
startTime = DateTime.MinValue.Add(new TimeSpan(days, 0, 0, 0));
}
}
break;
case TimeFrequency.TimeUnit.Day:
case TimeFrequency.TimeUnit.Hour:
case TimeFrequency.TimeUnit.Minute:
case TimeFrequency.TimeUnit.Second:
default:
intervalTime = dateTime;
// Just round down to the nearest minor interval
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, intervalTime, frequency.MinorUnit, frequency.MinorValue);
double remainingTicks = intervalTime.Ticks % ticks;
remainingTicks = ticks + remainingTicks;
if (intervalTime.Ticks - remainingTicks > 0)
{
intervalTime = intervalTime.Subtract(TimeSpan.FromTicks((long)remainingTicks));
}
if (frequency.MajorUnit == TimeFrequency.TimeUnit.Minute)
{
// align to a whole minute boundary based on major interval
tt = intervalTime.Subtract(DateTime.MinValue);
int minutes = (int)tt.TotalMinutes;
minutes -= (minutes % frequency.MajorValue);
startTime = DateTime.MinValue.Add(new TimeSpan(0, minutes, 0));
}
else if (frequency.MajorUnit == TimeFrequency.TimeUnit.Hour)
{
// align to boundary that in hours is divisible by the major interval value
tt = intervalTime.Subtract(DateTime.MinValue);
int hours = (int)tt.TotalHours;
if (frequency.MinorUnit == TimeFrequency.TimeUnit.Hour)
{
hours -= (hours % frequency.MajorValue);
}
startTime = DateTime.MinValue.Add(new TimeSpan(hours, 0, 0));
}
else
{
// ensure aligned to start of a day
tt = intervalTime.Subtract(DateTime.MinValue);
int days = (int)tt.TotalDays;
startTime = DateTime.MinValue.Add(new TimeSpan(days, 0, 0, 0));
}
break;
}
return(startTime);
}
/// <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;
}
/// <summary>
/// Initializes the graph.
/// </summary>
protected virtual void InitializeGraph()
{
if (this.VisibleWindow == null)
{
this.VisibleWindow = StyleParser.FindResource<TimeFrequency>(this.LayoutRoot, DefaultVisibleWindowResourceKeyName, false);
}
if (null != this.VisibleWindow)
{
this.scaleFactor = this.VisibleWindow.Ticks / (this.DynamicMainLayerViewport.ActualWidth > 0 ? this.DynamicMainLayerViewport.ActualWidth : 100);
this.frequency = AxisHelper.GetAxisDesign(this.VisibleWindow.Ticks);
}
// Axes dates will be calculated only when used as independent controls.
// If used in GraphHost, graph host will be setting the dates.
if (this.DetermineAxisDates)
{
this.SetAxisDates();
}
if (null != this.VisibleWindow && this.AxisStartDate.AddTicks(this.VisibleWindow.Ticks) <= this.AxisEndDate)
{
double numberOfPixelsInWindows = (this.AxisEndDate - this.AxisStartDate).Ticks / this.scaleFactor;
this.ScrollBar.SmallChange = 1;
this.ScrollBar.Maximum = numberOfPixelsInWindows - this.DynamicMainLayerViewport.ActualWidth > this.ScrollBar.SmallChange ? numberOfPixelsInWindows - this.DynamicMainLayerViewport.ActualWidth : 0; // substracting viewport width as one page is already being shown.
this.ScrollBar.LargeChange = this.VisibleWindow.Ticks / this.scaleFactor;
this.ScrollBar.ViewportSize = this.DynamicMainLayerViewport.ActualWidth;
}
else
{
this.ScrollBar.Maximum = 0;
this.ScrollBar.Minimum = 0;
}
this.RefreshTitle();
if (this.DesignMode)
{
if (this.NonDynamicRightAxisLabelsLayer.Children.Contains(this.designModeInformationBlock))
{
this.designModeInformationBlock = this.NonDynamicRightAxisLabelsLayer.Children[this.NonDynamicRightAxisLabelsLayer.Children.IndexOf(this.designModeInformationBlock)] as TextBlock;
}
else
{
this.designModeInformationBlock = new TextBlock();
this.designModeInformationBlock.TextWrapping = TextWrapping.Wrap;
this.designModeInformationBlock.FontSize = 14;
this.designModeInformationBlock.FontWeight = FontWeights.Bold;
this.NonDynamicRightAxisLabelsLayer.Children.Add(this.designModeInformationBlock);
}
if (string.IsNullOrEmpty(this.Title))
{
this.Title = GraphingResources.DesignModeTitleLabel;
}
if (this.VisibleWindow == null)
{
this.designModeInformationBlock.Text = GraphingResources.DesignModeInvalidWindow;
}
else if (this.DataContext == null)
{
this.designModeInformationBlock.Text = GraphingResources.DesignModeInvalidDataContext;
}
}
else
{
if (this.NonDynamicRightAxisLabelsLayer.Children.Contains(this.designModeInformationBlock))
{
this.NonDynamicRightAxisLabelsLayer.Children.Remove(this.designModeInformationBlock);
}
}
this.SetGraphSummary();
if (this.TitleArea != null)
{
this.TitleArea.DataContext = this.GraphSummary;
}
this.IsInitialized = true;
}
/// <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>
/// Gets the adjusted start date of the Axis based on the data supplied and the time interval.
/// </summary>
/// <param name="startTime">System.DateTime for the Start axis time.</param>
/// <param name="endTime">System.DateTime for the End axis time.</param>
/// <param name="frequency">TimeFrequency to be used for calculating the axis end date.</param>
internal static void AdjustAxisStartDate(ref DateTime startTime, ref DateTime endTime, TimeFrequency frequency)
{
// see if points are less than the visible window and if so adjust start date
long tickRange = endTime.Ticks - startTime.Ticks;
if (tickRange < frequency.Ticks)
{
DateTime adjustedTime;
long pastTicks, majorTicks;
pastTicks = frequency.Ticks - tickRange;
if (startTime.Ticks > pastTicks)
{
if (frequency.Unit == TimeFrequency.TimeUnit.Year)
{
adjustedTime = startTime.AddTicks(-pastTicks);
adjustedTime = new DateTime(adjustedTime.Year, 1, 1);
}
else
{
majorTicks = AxisHelper.GetTickIncrease(frequency.MajorInterval, startTime, frequency.MajorUnit, frequency.MajorValue);
adjustedTime = startTime.AddTicks(-pastTicks + majorTicks);
adjustedTime = AxisHelper.GetAxisStartDate(adjustedTime, frequency);
}
}
else
{
adjustedTime = DateTime.MinValue;
}
// have to adjust the start and end dates but not lower the end date
DateTime newStartTime = adjustedTime;
DateTime newEndTime = adjustedTime.AddTicks(frequency.Ticks);
if (newEndTime < endTime)
{
if (frequency.Unit == TimeFrequency.TimeUnit.Year)
{
// set the start time but only if still lowers the start date
if (newStartTime.AddYears(1) < startTime)
{
newStartTime = newStartTime.AddYears(1);
}
newEndTime = newEndTime.AddYears(1);
}
else
{
majorTicks = AxisHelper.GetTickIncrease(frequency.MajorInterval, newEndTime, frequency.MajorUnit, frequency.MajorValue);
newEndTime = newEndTime.AddTicks(majorTicks);
// increment the start time but only if still lowers the start date
majorTicks = AxisHelper.GetTickIncrease(frequency.MajorInterval, newStartTime, frequency.MajorUnit, frequency.MajorValue);
if (newStartTime.AddTicks(majorTicks) < startTime)
{
newStartTime = newStartTime.AddTicks(majorTicks);
}
}
}
// set the new start and end time
startTime = newStartTime;
endTime = newEndTime;
}
return;
}
/// <summary>
/// Gets the end date for the Axis based on the data supplied and the time frequency.
/// </summary>
/// <param name="dateTime">System.DateTime for the last data point.</param>
/// <param name="frequency">TimeFrequency to be used for calculating the axis end date.</param>
/// <returns>DateTime to be used for the last interval.</returns>
internal static DateTime GetAxisEndDate(DateTime dateTime, TimeFrequency frequency)
{
DateTime endTime = DateTime.MaxValue;
DateTime intervalTime;
long ticks;
int month, days;
switch (frequency.MajorUnit)
{
case TimeFrequency.TimeUnit.Year:
case TimeFrequency.TimeUnit.Month:
case TimeFrequency.TimeUnit.Week:
// ensure aligned to the minor boundary
if (frequency.MinorUnit == TimeFrequency.TimeUnit.Year)
{
// ensure last day of the year
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
intervalTime = dateTime.AddTicks(ticks);
endTime = new DateTime(intervalTime.Year, 12, 31);
// now ensure that the actual end time is the first day of the next period
endTime = endTime.AddDays(1);
}
else if (frequency.MinorUnit == TimeFrequency.TimeUnit.Month)
{
// ensure last day of the month
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
intervalTime = dateTime.AddTicks(ticks);
month = (((intervalTime.Month - 1) / frequency.MinorValue) + 1) * frequency.MinorValue;
days = DateTime.DaysInMonth(intervalTime.Year, month);
endTime = new DateTime(intervalTime.Year, month, days);
// now ensure that the actual end time is the first day of the next period
endTime = endTime.AddDays(1);
}
else if (frequency.MinorUnit == TimeFrequency.TimeUnit.Week)
{
// ensure last day of the week
TimeSpan tt = dateTime.Subtract(DateTime.MinValue);
days = (int)tt.TotalDays;
days = days - (days % 7) + 7 + (frequency.MinorValue * 7);
endTime = DateTime.MinValue.Add(new TimeSpan(days, 0, 0, 0));
}
else
{
ticks = AxisHelper.GetTickIncreaseRounded(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
endTime = dateTime.AddTicks(ticks);
}
break;
case TimeFrequency.TimeUnit.Day:
case TimeFrequency.TimeUnit.Hour:
case TimeFrequency.TimeUnit.Minute:
case TimeFrequency.TimeUnit.Second:
default:
ticks = AxisHelper.GetTickIncreaseRounded(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
endTime = dateTime.AddTicks(ticks);
break;
}
return endTime;
}
/// <summary>
/// Gets the Axis design based on the interval.
/// </summary>
/// <param name="visibleWindowTicks">Number of ticks in the visible window.</param>
/// <returns>Returns TimeFrequency with Major and Minor intervals based on the graph interval.</returns>
internal static TimeFrequency GetAxisDesign(long visibleWindowTicks)
{
TimeSpan timeSpanOfWindow = new TimeSpan(visibleWindowTicks);
TimeFrequency frequency = new TimeFrequency();
if (timeSpanOfWindow == TimeSpan.FromMinutes(5))
{
// 5 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 5;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Second;
frequency.MinorValue = 30;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromMinutes(10))
{
// 10 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 10;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromMinutes(15))
{
// 15 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 15;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromMinutes(30))
{
// 30 Minutes
frequency.Unit = TimeFrequency.TimeUnit.Minute;
frequency.Value = 30;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 5;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMinute;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMinute;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(1))
{
// 1 Hour
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 1;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 15;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 5;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(2))
{
// 2 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 2;
frequency.MajorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MajorValue = 30;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 10;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(4))
{
// 4 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 4;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 15;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(6))
{
// 6 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 6;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Minute;
frequency.MinorValue = 30;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(8))
{
// 8 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 8;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(12))
{
// 12 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 12;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 4;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(24))
{
// 24 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 24;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 6;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHour;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHour;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(36))
{
// 36 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 36;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 6;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 3;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHourDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHourDay;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(48))
{
// 48 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 48;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 12;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 3;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHourDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHourDay;
}
else if (timeSpanOfWindow == TimeSpan.FromHours(72))
{
// 72 Hours
frequency.Unit = TimeFrequency.TimeUnit.Hour;
frequency.Value = 72;
frequency.MajorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MajorValue = 24;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 6;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatHourDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatHourDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(5))
{
// 5 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 5;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 12;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(7))
{
// 1 Week or 7 Days
frequency.Unit = TimeFrequency.TimeUnit.Week;
frequency.Value = 1;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Hour;
frequency.MinorValue = 12;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(10))
{
// 10 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 10;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(14))
{
// 2 Weeks or 14 Days
frequency.Unit = TimeFrequency.TimeUnit.Week;
frequency.Value = 2;
frequency.MajorUnit = TimeFrequency.TimeUnit.Week;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(15))
{
// 15 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 15;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(20))
{
// 20 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 20;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 5;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(28))
{
// 4 Weeks or 28 Days
frequency.Unit = TimeFrequency.TimeUnit.Week;
frequency.Value = 4;
frequency.MajorUnit = TimeFrequency.TimeUnit.Week;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(30))
{
// 30 Days
frequency.Unit = TimeFrequency.TimeUnit.Day;
frequency.Value = 30;
frequency.MajorUnit = TimeFrequency.TimeUnit.Day;
frequency.MajorValue = 10;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 5;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatDay;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatDay;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(31))
{
// 1 Month
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 1;
frequency.MajorUnit = TimeFrequency.TimeUnit.Week;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Day;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonth;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonth;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(62))
{
// 2 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 2;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Week;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonth;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonth;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(92))
{
// 3 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 3;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Week;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonth;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonth;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(184))
{
// 6 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 6;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Week;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(276))
{
// 9 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 9;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(366))
{
// 1 Year or 12 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 12;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(550))
{
// 18 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 18;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 3;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(731))
{
// 2 Years or 24 Months
frequency.Unit = TimeFrequency.TimeUnit.Month;
frequency.Value = 24;
frequency.MajorUnit = TimeFrequency.TimeUnit.Month;
frequency.MajorValue = 6;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 2;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatMonthYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatMonthYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(1827))
{
// 5 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 5;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 1;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 3;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(3653))
{
// 10 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 10;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 2;
frequency.MinorUnit = TimeFrequency.TimeUnit.Month;
frequency.MinorValue = 6;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(7305))
{
// 20 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 20;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 5;
frequency.MinorUnit = TimeFrequency.TimeUnit.Year;
frequency.MinorValue = 1;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
else if (timeSpanOfWindow == TimeSpan.FromDays(36525))
{
// 100 Years
frequency.Unit = TimeFrequency.TimeUnit.Year;
frequency.Value = 100;
frequency.MajorUnit = TimeFrequency.TimeUnit.Year;
frequency.MajorValue = 20;
frequency.MinorUnit = TimeFrequency.TimeUnit.Year;
frequency.MinorValue = 5;
frequency.LabelFormat = GraphingResources.AxisHelperLabelFormatYear;
frequency.TitleFormat = GraphingResources.AxisHelperTitleFormatYear;
}
System.Diagnostics.Debug.Assert(frequency.Value != 0, GraphingResources.AxisHelperInvalidFrequency);
return frequency;
}
/// <summary>
/// Gets the start date of the Axis based on the data supplied and the time interval.
/// </summary>
/// <param name="dateTime">System.DateTime for the first data point.</param>
/// <param name="frequency">TimeFrequency to be used for calculating the axis end date.</param>
/// <returns>DateTime to be used for the first interval.</returns>
internal static DateTime GetAxisStartDate(DateTime dateTime, TimeFrequency frequency)
{
DateTime startTime = DateTime.MinValue;
DateTime intervalTime;
TimeSpan tt;
long ticks;
int month;
switch (frequency.MajorUnit)
{
case TimeFrequency.TimeUnit.Year:
case TimeFrequency.TimeUnit.Month:
case TimeFrequency.TimeUnit.Week:
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, dateTime, frequency.MinorUnit, frequency.MinorValue);
if (dateTime.Ticks > ticks)
{
// ensure year aligned to the major boundary - start of year
intervalTime = dateTime.AddTicks(-ticks);
if (frequency.MajorUnit == TimeFrequency.TimeUnit.Year)
{
startTime = new DateTime(intervalTime.Year, 1, 1);
}
else if (frequency.MajorUnit == TimeFrequency.TimeUnit.Month)
{
// ensure month aligned to major boundary value - start of month
month = intervalTime.Month - ((intervalTime.Month - 1) % frequency.MajorValue);
startTime = new DateTime(intervalTime.Year, month, 1);
}
else
{
// ensure week aligned to major boundary value - start of week
tt = intervalTime.Subtract(DateTime.MinValue);
int days = (int)tt.TotalDays;
days -= (days % 7);
startTime = DateTime.MinValue.Add(new TimeSpan(days, 0, 0, 0));
}
}
break;
case TimeFrequency.TimeUnit.Day:
case TimeFrequency.TimeUnit.Hour:
case TimeFrequency.TimeUnit.Minute:
case TimeFrequency.TimeUnit.Second:
default:
intervalTime = dateTime;
// Just round down to the nearest minor interval
ticks = AxisHelper.GetTickIncrease(frequency.MinorInterval, intervalTime, frequency.MinorUnit, frequency.MinorValue);
double remainingTicks = intervalTime.Ticks % ticks;
remainingTicks = ticks + remainingTicks;
if (intervalTime.Ticks - remainingTicks > 0)
{
intervalTime = intervalTime.Subtract(TimeSpan.FromTicks((long)remainingTicks));
}
if (frequency.MajorUnit == TimeFrequency.TimeUnit.Minute)
{
// align to a whole minute boundary based on major interval
tt = intervalTime.Subtract(DateTime.MinValue);
int minutes = (int)tt.TotalMinutes;
minutes -= (minutes % frequency.MajorValue);
startTime = DateTime.MinValue.Add(new TimeSpan(0, minutes, 0));
}
else if (frequency.MajorUnit == TimeFrequency.TimeUnit.Hour)
{
// align to boundary that in hours is divisible by the major interval value
tt = intervalTime.Subtract(DateTime.MinValue);
int hours = (int)tt.TotalHours;
if (frequency.MinorUnit == TimeFrequency.TimeUnit.Hour)
{
hours -= (hours % frequency.MajorValue);
}
startTime = DateTime.MinValue.Add(new TimeSpan(hours, 0, 0));
}
else
{
// ensure aligned to start of a day
tt = intervalTime.Subtract(DateTime.MinValue);
int days = (int)tt.TotalDays;
startTime = DateTime.MinValue.Add(new TimeSpan(days, 0, 0, 0));
}
break;
}
return startTime;
}