TechnicalIndicator<T, D> class abstract

Customize the technical indicators.

The technical indicator is a mathematical calculation based on historical price, volume or (in the case of futures contracts) open interest information, which is intended to predict the direction of the financial market.

Indicators generally overlay the chart data to show the data flow over a period of time.

Note: This property is applicable only for financial chart series types.

Implementers

Constructors

TechnicalIndicator({bool isVisible = true, String? xAxisName, String? yAxisName, String? seriesName, List<double> dashArray = const <double>[0, 0], double animationDuration = 1500, double animationDelay = 0, List<T>? dataSource, ChartIndexedValueMapper<D>? xValueMapper, ChartIndexedValueMapper<num?>? highValueMapper, ChartIndexedValueMapper<num?>? lowValueMapper, ChartIndexedValueMapper<num?>? openValueMapper, ChartIndexedValueMapper<num?>? closeValueMapper, ChartIndexedValueMapper<num?>? volumeValueMapper, String? name, ChartIndicatorRenderCallback? onRenderDetailsUpdate, bool isVisibleInLegend = true, LegendIconType legendIconType = LegendIconType.seriesType, String? legendItemText, Color signalLineColor = Colors.blue, double signalLineWidth = 2})
Creating an argument constructor of TechnicalIndicators class.

Properties

animationDelay → double
Delay duration of the technical indicator's animation. It takes a millisecond value as input. By default, the technical indicator will get animated for the specified duration. If animationDelay is specified, then the technical indicator will begin to animate after the specified duration.
final
animationDuration → double
Animation duration for the technical indicators.
final
closeValueMapper → ChartIndexedValueMapper<num?>?
Value mapper to map the close values with technical indicators.
final
dashArray → List<double>
Property to provide dash array for the technical indicators.
final
dataSource → List<T>?
Property to provide data for the technical indicators without any series.
final
hashCode → int
The hash code for this object.
no setterinherited
highValueMapper → ChartIndexedValueMapper<num?>?
Value mapper to map the high values with technical indicators.
final
isVisible → bool
Boolean property to change the visibility of the technical indicators.
final
isVisibleInLegend → bool
Boolean property to determine the rendering of legends for the technical indicators.
final
legendIconType → LegendIconType
Property to provide icon type for the technical indicators legend.
final
legendItemText → String?
Property to provide the text for the technical indicators legend.
final
lowValueMapper → ChartIndexedValueMapper<num?>?
Value mapper to map the low values with technical indicators.
final
name → String?
Property to provide name for the technical indicators.
final
onRenderDetailsUpdate → ChartIndicatorRenderCallback?
Callback which gets called while rendering the indicators.
final
openValueMapper → ChartIndexedValueMapper<num?>?
Value mapper to map the open values with technical indicators.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
seriesName → String?
Property to link indicators to a series based on names.
final
signalLineColor → Color
Property to provide the color of the signal line in the technical indicators.
final
signalLineWidth → double
Property to provide the width of the signal line in the technical indicators.
final
volumeValueMapper → ChartIndexedValueMapper<num?>?
Volume of series.
final
xAxisName → String?
Property to map the technical indicators with the axes.
final
xValueMapper → ChartIndexedValueMapper<D>?
Value mapper to map the x values with technical indicators.
final
yAxisName → String?
Property to map the technical indicators with the axes.
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited