protected override string OnTooltipAtPoint(double a_Value, Range a_Range, System.Windows.Media.Transform a_Transform, AxisDrawingArgs args)
{
//Get the number of significant figures to display on each axis
Point sigFigs = a_Transform.GetSignificantFigures();
if (args.AxisOrientation == System.Windows.Controls.Orientation.Horizontal)
return string.Format("{0}", a_Value.ToString("F"+((int)sigFigs.X)));
else
return string.Format("{0}", a_Value.ToString("F"+((int)sigFigs.Y)));
}
protected override void OnCalculateTicks(TickList a_Ticks, Range a_Range, AxisDrawingArgs a_Options)
{
if (a_Range.Start <= 0 && a_Range.End >= 0)
{
//Get the fractional position
double pos = (0 - a_Range.Start) / a_Range.Size;
//add 1 as a tick
a_Ticks.MajorTicks.Add(new TickList.Tick(m_Flipped ? "On" : "Off", pos));
}
//Only add 2 ticks - off and on.
if (a_Range.Start <= 1 && a_Range.End >= 1)
{
//Get the fractional position
double pos = (1 - a_Range.Start) / a_Range.Size;
//add 1 as a tick
a_Ticks.MajorTicks.Add(new TickList.Tick(m_Flipped ? "Off" : "On", pos));
}
}
/// <summary> /// Calculates an appropriate tooltip for the given value to be displayed at the cursor. /// </summary> /// <param name="a_Value">Value of the desired label</param> /// <param name="a_Range">Currently displayed range</param> /// <param name="a_Transform">Host charts transform. Included in order to support significant figure calculations.</param> /// <param name="a_Orientation">Orientation of the axis</param> /// <returns>String label.</returns> protected abstract string OnTooltipAtPoint(double a_Value, Range a_Range, Transform a_Transform, AxisDrawingArgs args);
internal FormattedText CreateLabel(string a_Text, AxisDrawingArgs args)
{
if (a_Text == null)
a_Text = "";
FormattedText text = new FormattedText(a_Text, CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
new Typeface(args.LabelFontFamily.ToString()),
args.LabelFontSize, args.LabelColour);
text.Trimming = TextTrimming.CharacterEllipsis;
return text;
}
protected abstract void OnCalculateTicks(TickList a_Ticks, Range a_Range, AxisDrawingArgs a_Options);
/// <summary>
/// Calculates an appropriate tooltip for the given value to be displayed at the cursor.
/// </summary>
/// <param name="a_Value">Value of the desired label</param>
/// <param name="a_Range">Currently displayed range</param>
/// <param name="a_Transform">Host charts transform. Included in order to support significant figure calculations.</param>
/// <param name="a_Orientation">Orientation of the axis</param>
/// <returns>String label.</returns>
public string TooltipAtPoint(double a_Value, Range a_Range, Transform a_Transform, AxisDrawingArgs args)
{
return OnTooltipAtPoint(a_Value, TransformRange(a_Range), a_Transform, args);
}
public void CalculateTicks(Range a_Range, AxisDrawingArgs args)
{
TickList ticks = new TickList();
//Prevent divide-by-zero exceptions.
if (a_Range.Size > 0)
{
//Transform the range
OnCalculateTicks(ticks, TransformRange(a_Range), args);
}
Ticks = ticks;
}
protected override void OnCalculateTicks(TickList a_Tick, Range a_Range, AxisDrawingArgs a_Options)
{
double smallestInterval = 0.00001;
//double valueInterval = CalculateInterval(a_Range.Size);
double valueInterval = Math.Pow(10, Math.Floor(Math.Log10(a_Range.Size/10))) * 5.0;
double positionInterval = (valueInterval / a_Range.Size);
if (valueInterval < smallestInterval)
return;
//Snap to the smallest interval allowed if under it.
//if (positionInterval < smallestInterval)
//{
// double percentage = positionInterval / smallestInterval;
// valueInterval = valueInterval / percentage;
// positionInterval = smallestInterval;
//}
//Round start down starting tick to nearest interval.
double tickStart = a_Range.Start - (a_Range.Start % valueInterval) - valueInterval;
//Create ticks until beyond the range
double tickValue = tickStart;
while (tickValue < a_Range.End)
{
double tickPosition = (tickValue - a_Range.Start) / a_Range.Size;
//Round tickvalue to 10 decimal places
//Fix for Issue # PW-573
tickValue = Math.Round(tickValue, 10);
a_Tick.MajorTicks.Add(new TickList.Tick(tickValue, tickPosition));
tickValue += valueInterval;
}
//MINOR TICKS
if (a_Options.MinorTickCount > 0)
{
//Calculate the tick interval
double minorTickPositionInterval = positionInterval / (a_Options.MinorTickCount + 1);
double minorTickValueInterval = valueInterval / (a_Options.MinorTickCount + 1);
//Create minor ticks
foreach (TickList.Tick currentMajorTick in a_Tick.MajorTicks)
{
double tickPosition = currentMajorTick.AxisPosition + minorTickPositionInterval;
tickValue = (double)currentMajorTick.Value + minorTickValueInterval;
//Only add the required number of ticks
for (int i = 1; i <= a_Options.MinorTickCount; i++)
{
a_Tick.MinorTicks.Add(new TickList.Tick(tickValue.ToString(), tickPosition));
tickPosition += minorTickPositionInterval;
tickValue += minorTickValueInterval;
}
}
}
}
protected override string OnTooltipAtPoint(double a_Value, Range a_Range, Transform a_Transform, AxisDrawingArgs args)
{
if (LabelFormat == null)
return string.Empty;
DateTime value = m_ZeroValue.AddDays(a_Value);
return value.ToString(LabelFormat);
}
//internal override void CalculateTicks(TickList a_Ticks, Range a_Range, AxisDrawOptions args)
//{
// //Find the start value (left or bottom ) of the axis by
// //adding the range start to the zerovalue.
// DateTime rangeStartDate = m_ZeroValue.AddDays(a_Range.Start);
// //Get the rounding interval in order to normalise the start value
// double intervalSize = 0.0;
// TimeUnit tickInterval = this.GetInterval(a_Range.Size, out intervalSize);
// //Round the datetime
// DateTime roundedStartDate = rangeStartDate.Round(tickInterval, false);
// //Adjust range start value so that it reflects the rounded value
// double roundedStartValue = roundedStartDate.Subtract(m_ZeroValue).TotalDays;
// double cumulativeValue = roundedStartValue;
// //Build the ticks
// while (true)
// {
// //Determine the tick's position
// double tickPos = (cumulativeValue - a_Range.Start) / a_Range.Size;
// //Break loop if current tick is placed > 1
// if (tickPos > 1)
// break;
// //Assemble the tick's label value
// DateTime tickDate = m_ZeroValue.AddDays(cumulativeValue);
// string tickValue = string.Empty;
// switch (m_DisplayType)
// {
// case DateDisplay.TimeOnly:
// tickValue = tickDate.ToShortTimeString();
// break;
// case DateDisplay.DateOnly:
// tickValue = tickDate.ToShortDateString();
// break;
// case DateDisplay.Both:
// tickValue = tickDate.ToShortDateString() + " " + tickDate.ToShortTimeString();
// break;
// }
// //Add the tick
// a_Ticks.MajorTicks.Add(new TickList.Tick(tickValue, tickPos));
// //Increment the cumulative value by the interval amount
// cumulativeValue += intervalSize;
// }
//}
protected override void OnCalculateTicks(TickList a_Ticks, Range a_Range, AxisDrawingArgs args)
{
try
{
int minorTickCount = args.MinorTickCount;
//Find the start value (left or bottom ) of the axis by
//adding the range start to the zerovalue.
string autoFormat = "";
//Get the rounding interval in order to normalise the start value
TimeSpan intervalDuration = GetInterval(a_Range.Size, out autoFormat);
double intervalSize = Math.Abs(intervalDuration.TotalDays);
//Break if zoom is too small
if (intervalSize == 0)
return;
//Round down to snap to interval using datetime ticks (using raw double value did not work correctly due to rounding)
DateTime rangeStartTime = this.DoubleToDateTime(a_Range.Start);
DateTime roundedStartTime = new DateTime(rangeStartTime.Ticks - (rangeStartTime.Ticks % intervalDuration.Ticks) - intervalDuration.Ticks);
//double startValue = a_Range.Start - (Math.Abs(a_Range.Start) % intervalSize);
double startValue = this.DateTimeToDouble(roundedStartTime);
if (double.IsNaN(startValue))
startValue = 0.0;
double cumulativeValue = startValue;
double majorTickPosInterval = intervalSize / a_Range.Size;
bool firstTick = true;
//Build the ticks
while (true)
{
//Determine the tick's position
double tickPos = (cumulativeValue - a_Range.Start) / a_Range.Size;
//Break loop if current tick is placed >= 1
if (tickPos >= 1)
break;
//Assemble the tick's label value
DateTime tickDate = m_ZeroValue.AddDays(cumulativeValue);
string tickValue = GetString(tickDate, autoFormat);
//Add the tick
a_Ticks.MajorTicks.Add(new TickList.Tick(tickValue, tickPos));
//Increment the cumulative value by the interval amount
cumulativeValue += intervalSize;
if (args.MinorTickCount > 0)
{
double minorPosInterval = majorTickPosInterval / (minorTickCount + 1);
//Add minor ticks after this major tick
for (int i = 0; i < minorTickCount; i++)
{
a_Ticks.MinorTicks.Add(new TickList.Tick(null, tickPos + (minorPosInterval * (i + 1))));
}
if (firstTick)
{
//Add minor ticks after this major tick
for (int i = 0; i < minorTickCount; i++)
{
a_Ticks.MinorTicks.Add(new TickList.Tick(null, (tickPos - majorTickPosInterval) + (minorPosInterval * (i + 1))));
}
}
}
firstTick = false;
}
}
catch// (DivideByZeroException ex)
{
//zoom too small.
}
//catch (ArgumentOutOfRangeException ex)
//{
// //zoom too large.
//}
}
