BaseNeedleVisual<TGeometry, TLabelGeometry>
Class

Assembly LiveChartsCore
Namespace LiveChartsCore.VisualElements
View source code on GitHub

Summary:
Defines a visual element in a chart that draws a needle.

Type parameters:
TGeometry The type of the geometry.
TLabelGeometry The type of the label.
Inheritance:
Object =>
ChartElement =>
VisualElement =>
BaseNeedleVisual =>
BaseNeedleVisual<TGeometry, TLabelGeometry>
Implements:
IChartElement
IInteractable
Derived:
NeedleVisual<NeedleGeometry>
NeedleVisual<TNeedle>

Properties

Value
Gets or sets the value.
Type: Double
Width
Gets or sets the width of the needle.
Type: Double
Fill
Gets or sets the fill paint.
Type: Paint
X
Gets or sets the X coordinate [in Pixels or ChartValues, see LocationUnit].
Type: Double
Y
Gets or sets the Y coordinate [in Pixels or ChartValues, see LocationUnit].
Type: Double
Rotation
Gets or sets the rotation.
Type: Double
Translate
Gets or sets the translate transform.
Type: LvcPoint
LocationUnit
Gets or sets the unit of the X and Y properties.
Type: MeasureUnit
ScalesXAt
Gets or sets the axis index where the series is scaled in the X plane, the index must exist in the YAxes collection.
Type: Int32
ScalesYAt
Gets or sets the axis index where the series is scaled in the Y plane, the index must exist in the YAxes collection.
Type: Int32
Tag
Gets or sets the object that contains data about the control.
Type: Object
IsVisible
Gets or sets a value indicating whether the element is visible.
Type: Boolean

Events

PointerDown
Called when the pointer goes down on the visual.
Handler definition: VisualElementHandler
PropertyChanged
Occurs when a property value changes.
Handler definition: PropertyChangedEventHandler

Methods

// Measures the element and returns the size.
Chart chart// The chart.
)
// Invalidates the IChartElement in the user interface.
Chart chart// The chart.
)
// Gets the hit box, an area where the user can interact with the object.
// Removes the element from the UI.
Chart chart// The chart.
)
// Deletes the Paint instances that changed from the user interface.
IChartView chart// The chart.
)