//Lets define some default configurations, all charts should be able to detect any of these types and plot
//them correclty
static Charting()
{
Configurations = new Dictionary <Type, ConfigWrapper>();
// Live.Charts can plot any type, yes even any class defined by yourself.
// you just need to tell the charts how to plot it.
// for example the Xy Mapper expouses an X and Y method,
// for example .X( "mapper" ) asks for the function to get the value of a point in X, same with Y
// live charts will inject a value and an index
// the value will be of type <T> and the index is only the value of the point in the array.
//the SeriesMappers class is just a reminder of the configurators that we have, it actually just
//returns a new instance of the related configurator
//a configurator is only a holder for the mappers.
//lets configure <int>
For <int>(Mappers.Xy <int>()
.X((value, index) => index) //use the index of the item in the array as X
.Y(value => value), SeriesOrientation.Horizontal); //use the value (of type int int this case) as Y
For <int>(Mappers.Xy <int>()
.X(value => value) //use the value (int) as X
.Y((value, index) => index), SeriesOrientation.Vertical); //use the index of the item in the array as Y
//ok now lets configure a class I defined, the ObservablePoint class, it only has 2 properties, X and Y
For <ObservablePoint>(Mappers.Xy <ObservablePoint>() //in this case value is of type <ObservablePoint>
.X(value => value.X) //use the X property as X
.Y(value => value.Y)); //use the Y property as Y
//easy, now live charts know how to plot an ObservablePoint class and integers.
//ok, now lets use another mapper, in this case we are going to configre a class for a PolarChart
//polar chart requieres a Radius and an Angle instead of X and Y
//so we will just pull the Mappers.Polar configurator
//and specify which property to use as Radius and which one as Angle
//in this case the PolarPoint class that I defined only contains these 2 properties.
//so it is realy easy, now value is of type Polar point, becaus we said so when: SeriesMappers.Polar<PolarPoint>()
For <PolarPoint>(Mappers.Polar <PolarPoint>()
.Radius(value => value.Radius) //use the radius property as radius for the plotting
.Angle(value => value.Angle)); //use the angle property as angle for the plotting
//now a more complex situation
//the OhclPoint is ready to plot financial points,
//the financial series requires a Open, High, Low, and Close values at least
//that is just by definition of a CandleStick series
//so I created a OhclPoint class, and used the Financial mapper:
//and again the OhclPoint class only contains those 4 properties
//we just mapped them correctly and LiveCharts will know how to handle this class.
//the DateTime for now its tricky....
//I will explain better later if i do not find a better solution...
For <OhlcPoint>(Mappers.Financial <OhlcPoint>()
.X((value, index) => index)
.Open(value => value.Open)
.High(value => value.High)
.Low(value => value.Low)
.Close(value => value.Close), SeriesOrientation.Horizontal);
For <double>(Mappers.Xy <double>()
.X((value, index) => index)
.Y(value => value), SeriesOrientation.Horizontal);
For <double>(Mappers.Xy <double>()
.X(value => value)
.Y((value, index) => index), SeriesOrientation.Vertical);
For <decimal>(Mappers.Xy <decimal>()
.X((value, index) => index)
.Y(value => (double)value), SeriesOrientation.Horizontal);
For <decimal>(Mappers.Xy <decimal>()
.X(value => (double)value)
.Y((value, index) => index), SeriesOrientation.Vertical);
For <short>(Mappers.Xy <short>()
.X((value, index) => index)
.Y(value => value), SeriesOrientation.Horizontal);
For <short>(Mappers.Xy <short>()
.X(value => value)
.Y((value, index) => index), SeriesOrientation.Vertical);
For <float>(Mappers.Xy <float>()
.X((value, index) => index)
.Y(value => value), SeriesOrientation.Horizontal);
For <float>(Mappers.Xy <float>()
.X(value => value)
.Y((value, index) => index), SeriesOrientation.Vertical);
For <long>(Mappers.Xy <long>()
.X((value, index) => index)
.Y(value => value), SeriesOrientation.Horizontal);
For <long>(Mappers.Xy <long>()
.X(value => value)
.Y((value, index) => index), SeriesOrientation.Vertical);
For <BubblePoint>(Mappers.Bubble <BubblePoint>()
.X(value => value.X)
.Y(value => value.Y)
.Weight(value => value.Weight));
For <ObservableValue>(Mappers.Xy <ObservableValue>()
.X((value, index) => index)
.Y(value => value.Value),
SeriesOrientation.Horizontal);
For <ObservableValue>(Mappers.Xy <ObservableValue>()
.X(value => value.Value)
.Y((value, index) => index),
SeriesOrientation.Vertical);
For <DatePoint>(Mappers.Xy <DatePoint>()
.X(x => ChartFunctions.ToChartDay(x.DateTime))
.Y(x => x.Value), SeriesOrientation.Horizontal);
For <DatePoint>(Mappers.Xy <DatePoint>()
.Y(x => ChartFunctions.ToChartDay(x.DateTime))
.X(x => x.Value), SeriesOrientation.Vertical);
}
internal void UpdateSeparators(AxisOrientation source, ChartCore chart, int axisIndex)
{
foreach (var element in Cache.Values.ToArray())
{
if (element.GarbageCollectorIndex < GarbageCollectorIndex)
{
element.State = SeparationState.Remove;
Cache.Remove(element.Key);
}
var toLine = ChartFunctions.ToPlotArea(element.Value, source, chart, axisIndex);
var direction = source == AxisOrientation.X ? 1 : -1;
toLine += EvaluatesUnitWidth ? direction * ChartFunctions.GetUnitWidth(source, chart, this) / 2 : 0;
var toLabel = toLine + element.View.LabelModel.GetOffsetBySource(source);
if (IsMerged)
{
const double padding = 4;
if (source == AxisOrientation.Y)
{
if (toLabel + element.View.LabelModel.ActualHeight >
chart.DrawMargin.Top + chart.DrawMargin.Height)
{
toLabel -= element.View.LabelModel.ActualHeight + padding;
}
}
else
{
if (toLabel + element.View.LabelModel.ActualWidth >
chart.DrawMargin.Left + chart.DrawMargin.Width)
{
toLabel -= element.View.LabelModel.ActualWidth + padding;
}
}
}
var labelTab = Tab;
labelTab += element.View.LabelModel.GetOffsetBySource(source.Invert());
switch (element.State)
{
case SeparationState.Remove:
if (!chart.View.DisableAnimations && !View.DisableAnimations)
{
element.View.Move(chart, this, source, axisIndex, toLabel, toLine, labelTab);
element.View.FadeOutAndRemove(chart);
}
else
{
element.View.Remove(chart);
}
break;
case SeparationState.Keep:
if (!chart.View.DisableAnimations && !View.DisableAnimations)
{
if (element.IsNew)
{
var toLinePrevious = FromPreviousState(element.Value, source, chart);
toLinePrevious += EvaluatesUnitWidth ? ChartFunctions.GetUnitWidth(source, chart, this) / 2 : 0;
var toLabelPrevious = toLinePrevious + element.View.LabelModel.GetOffsetBySource(source);
element.View.Place(chart, this, source, axisIndex, toLabelPrevious,
toLinePrevious, labelTab);
element.View.FadeIn(this, chart);
}
element.View.Move(chart, this, source, axisIndex, toLabel, toLine, labelTab);
}
else
{
element.View.Place(chart, this, source, axisIndex, toLabel, toLine, labelTab);
}
break;
case SeparationState.InitialAdd:
element.View.Place(chart, this, source, axisIndex, toLabel, toLine, labelTab);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
LastAxisMax = TopLimit;
LastAxisMin = BotLimit;
LastPlotArea = new CoreRectangle(chart.DrawMargin.Left, chart.DrawMargin.Top,
chart.DrawMargin.Width, chart.DrawMargin.Height);
}
