Live-Charts/LiveCharts2GitHubLast refreshed Oct 3, 2026
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Each sentence below names a type the default branch doesn't declare, or declares somewhere else. Edit the doc so it matches the code, or bring the type back.
GoneIAnimatable
The **Core** provides a simple (and sufficient) framework where an [IAnimatable](https://github.com/beto-rodriguez/LiveCharts2/blob/master/src/LiveChartsCore/Drawing/IAnimatable.cs) object knows [its position in a timeline](https://github.com/beto-rodriguez/LiveCharts2/blob/master/src/LiveChartsCore/Drawing/IAnimatable.cs#L46).
The repository once held src/LiveChartsCore/Drawing/IAnimatable.cs. It doesn't now. Closest name there: Animatable.
Every time we access a motion property we get the value of the property at the current time based on the [IAnimatable](https://livecharts.dev/api/{{ version }}/LiveChartsCore.Drawing.IAnimatable) animation.
The repository once held src/LiveChartsCore/Drawing/IAnimatable.cs. It doesn't now. Closest name there: Animatable.
**Xi:** Gets or sets the xi, the value where the section starts at the X axis, set the property to null to indicate that the section must start at the beginning of the X axis, default is null.
RectangularSection has Xi
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**Xj:** Gets or sets the xj, the value where the section ends and the X axis, set the property to null to indicate that the section must go to the end of the X axis, default is null.
RectangularSection has Xj
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**Yi:** Gets or sets the yi, the value where the section starts and the Y axis, set the property to null to indicate that the section must start at the beginning of the Y axis, default is null.
RectangularSection has Yi
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**Yj:** Gets or sets the yj, the value where the section ends and the Y axis, set the property to null to indicate that the section must go to the end of the Y axis, default is null.
RectangularSection has Yj
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The Rx, Ry, MaxBarWidth, Padding, Stroke, Fill, and IgnoresBarPosition properties behave identically to the equivalents on ColumnSeries — see the [Column Series article]({{ website_url }}/docs/{{ platform }}/{{ version }}/CartesianChart.ColumnSeries) for examples.
RangeColumnSeries has Padding
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The Rx, Ry, MaxBarWidth, Padding, Stroke, Fill, and IgnoresBarPosition properties behave identically to the equivalents on ColumnSeries — see the [Column Series article]({{ website_url }}/docs/{{ platform }}/{{ version }}/CartesianChart.ColumnSeries) for examples.
RangeColumnSeries has Stroke
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The Rx, Ry, MaxBarWidth, Padding, Stroke, Fill, and IgnoresBarPosition properties behave identically to the equivalents on ColumnSeries — see the [Column Series article]({{ website_url }}/docs/{{ platform }}/{{ version }}/CartesianChart.ColumnSeries) for examples.
RangeColumnSeries has Fill
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The simplest way to feed the series is the RangeValue helper in LiveChartsCore.Defaults (shared with RangeColumnSeries and RangeRowSeries), which carries Low and High and maps to the coordinate slots the series expects (PrimaryValue = High, TertiaryValue = Low).
RangeValue is in LiveChartsCore.Defaults
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The simplest way to feed the series is the RangeValue helper in LiveChartsCore.Defaults (shared with RangeColumnSeries and RangeRowSeries), which carries Low and High and maps to the coordinate slots the series expects (PrimaryValue = High, TertiaryValue = Low).
RangeValue has Low
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The simplest way to feed the series is the RangeValue helper in LiveChartsCore.Defaults (shared with RangeColumnSeries and RangeRowSeries), which carries Low and High and maps to the coordinate slots the series expects (PrimaryValue = High, TertiaryValue = Low).
RangeValue has High
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The series exposes the usual Stroke and Fill properties, with a small twist:
RangeLineSeries has Stroke
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The series exposes the usual Stroke and Fill properties, with a small twist:
RangeLineSeries has Fill
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GeometryStroke and GeometryFill style the markers at each high / low endpoint.
RangeLineSeries has GeometryStroke
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GeometryStroke and GeometryFill style the markers at each high / low endpoint.
RangeLineSeries has GeometryFill
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LineSmoothness controls the cubic-bezier tangent strength on both curves, exactly like LineSeries — 0 = straight polyline, 1 = fully curved (default 0.65).
RangeLineSeries has LineSmoothness
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By default the library already defines a default formatter for every series, all the series have a different formatters, but generally the default value uses the Series.Name and the ChartPoint.Coordinate.PrimaryValue properties, the following code snippet illustrates how to build a custom tooltip formatter.
Series has Name
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By default the library already defines a default formatter for every series, all the series have a different formatters, but generally the default value uses the Series.Name and the ChartPoint.Coordinate.PrimaryValue properties, the following code snippet illustrates how to build a custom tooltip formatter.
ChartPoint has Coordinate
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We used the Model property of the point, the Model property is just the item in the Values collection, for example in the next case, the Model property is of type City.
ChartPoint has Model
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:::tip The PieSeries class uses the ToolTipLabelFormatter property to configure the text inside the tooltip.
PieSeries has ToolTipLabelFormatter
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geoMap.DataPointerDown += (sender, points) => { if (points.FirstOrDefault()?.Context.DataSource is not LandDefinition land) return; // Look up each series' value for this land. foreach (var series in geoMap.Series ?? []) if (series.TryGetValue(land.ShortName, out var value)) Console.WriteLine($"{series.Name}: {value}");
LandDefinition has Name and ShortName
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:::info Override the gradient endpoints (e.g. to pin the legend to 0–100 even when the data only spans 5–87) by setting MinValue and MaxValue on the HeatLandSeries.
HeatLandSeries has MinValue and MaxValue
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Wrap one in a GeoVisualElement(visual) { Longitude, Latitude } to anchor it at a geographic coordinate;
GeoVisualElement has Longitude and Latitude
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The marker below is an ordinary Visual whose DrawnElement is a circle.
Visual has DrawnElement
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If you need the raw projector — to position something yourself, hit-test a click, etc. — use GeoMapChart.Project(lon, lat) and the inverse GeoMapChart.Unproject(LvcPoint).
GeoMapChart has Project and Unproject methods
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If you only need a synchronous lookup (e.g. on a custom gesture), call geoMap.GetPointsAt(new LvcPointD(x, y)) — same ChartPoint shape, no event subscription needed.
GeoMapChart has a GetPointsAt method
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If the series specifies the Mapping property, then the global mapper will be ignored and instead it will use the series instance mapper.
ISeries has Mapping
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The IChartEntity interface forces our points to have a [Coordinate](https://lvcharts.com/api/2.0.0-beta.710/LiveChartsCore.Kernel.Coordinate), LiveCharts will use this property to build the plot, when the interface is implemented correctly, you will notice a considerable performance improvement, specially on large data sets.
IChartEntity has Coordinate
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Now to implement IChartEntity we need to add 2 properties the Coordinate (the location of the point in the UI) and the MetaData (just some information LiveCharts needs to build the chart).
IChartEntity has MetaData
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When LiveCharts finds a null instance or the coordinate is set to Coordinate.Empty it will skip the point:
Coordinate has Empty
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There are 2 ways to format and axis labels, using the Labels property and using the Labeler property, you must normally use the Labels property to indicate names, and the Labeler property to give format to the current label.
PolarAxis has Labels
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There are 2 ways to format and axis labels, using the Labels property and using the Labeler property, you must normally use the Labels property to indicate names, and the Labeler property to give format to the current label.
PolarAxis has Labeler
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Finally notice that you can combine the LiveCharts.CotangentAngle and LiveCharts.TangentAngle with decimal degrees, the following expressions are valid also:
LiveCharts has CotangentAngle
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Finally notice that you can combine the LiveCharts.CotangentAngle and LiveCharts.TangentAngle with decimal degrees, the following expressions are valid also:
LiveCharts has TangentAngle
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We can add custom elements to a chart using the VisualElements property, this property is of type IEnumerable<ChartElement>, the library provides the Visual class, this class inherits from ChartElement and handles animations, the PointerDown event and the creation and destruction of the drawn geometries in the canvas.
Visual extends ChartElement
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The easiest way is to inherit from DrawnGeometry, this class implements IDrawnElement and also animates all of its properties;
DrawnGeometry implements IDrawnElement
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In the next example we inherit from BoundedDrawnGeometry it only adds the Width and Height properties to the DrawnGeometry class.
BoundedDrawnGeometry extends DrawnGeometry
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In the next example we inherit from BoundedDrawnGeometry it only adds the Width and Height properties to the DrawnGeometry class.
BoundedDrawnGeometry has Width
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In the next example we inherit from BoundedDrawnGeometry it only adds the Width and Height properties to the DrawnGeometry class.
BoundedDrawnGeometry has Height
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Zooming and panning is disabled by default, you can enable it by setting the ZoomMode property, this property is of type [ZoomAndPanMode](https://lvcharts.com/api/{{ version }}/LiveChartsCore.Measure.ZoomAndPanMode), this type is a flag enum it means that you can combine the options as you need, you can learn more about zooming and panning options [here](#options).
ZoomAndPanMode is an enumeration
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39 rules from 9 docs
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