ChartEngine class abstract

Abstract Chart Engine definition.

Implementers

• ChartEngineApexCharts
• ChartEngineChartJS
• ChartEngineSwitchable

Constructors

ChartEngine()

Properties

colorGenerator ↔ ColorGenerator

The color generator for ChartData that doesn't set its own colors.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

isLoaded → bool

no setter

onLoad → EventStream<LoadController>

onLoad event handler.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

version → String

no setter

Methods

checkLoaded() → void

Checks if engine is loaded.

checkRenderParameters(Element output, ChartData chartData) → void

getColorGeneratorAs<G extends ColorGenerator>() → G

load() → Future<bool>

Ensures that engine and dependencies are loaded.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

render(Element output, ChartData chartData) → RenderedChart?

Renders at output a chartData, selecting the correct render method.

renderAsync(Element output, ChartData chartData) → Future<RenderedChart?>

Same as render, but async.

renderBarChart(Element output, ChartSeries chartData) → RenderedChart

Renders a Bar Chart:

renderBarChartAsync(Element output, ChartSeries chartData) → Future<RenderedChart>

Same as renderBarChart, but async.

renderFinancialChart(Element output, ChartTimeSeries chartSeries, {bool? ohlc, bool? candlestick}) → RenderedChart

Renders financial chart.

renderGaugeChart(Element output, ChartSet chartData) → RenderedChart

Renders a Horizontal Bar Chart:

renderGaugeChartAsync(Element output, ChartSet chartData) → Future<RenderedChart>

Same as renderGaugeChart, but async.

renderHorizontalBarChart(Element output, ChartSeries chartData) → RenderedChart

Renders a Horizontal Bar Chart:

renderHorizontalBarChartAsync(Element output, ChartSeries chartData) → Future<RenderedChart>

Same as renderHorizontalBarChart, but async.

renderLineChart(Element output, ChartSeries chartData) → RenderedChart

Renders a Line Chart:

renderLineChartAsync(Element output, ChartSeries chartData) → Future<RenderedChart>

Same as renderLineChart, but async.

renderScatterChart(Element output, ChartSeriesPair chartSeries) → RenderedChart

Renders a Scatter Chart with X,Y pairs:

renderScatterChartAsync(Element output, ChartSeriesPair chartSeries) → Future<RenderedChart>

Same as renderScatterChart, but async.

renderScatterTimedChart(Element output, ChartTimeSeries chartSeries) → RenderedChart

Renders a Scatter Chart Timed with DateTime values in X axis:

renderScatterTimedChartAsync(Element output, ChartTimeSeries chartSeries) → Future<RenderedChart>

Same as renderScatterTimedChart, but async.

renderTimeSeriesChart(Element output, ChartTimeSeries chartData) → RenderedChart

Renders a Time Series using Line Chart:

renderTimeSeriesChartAsync(Element output, ChartTimeSeries chartData) → Future<RenderedChart>

Same as renderTimeSeriesChart, but async.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

VERSION → String

chart_engine package version.

final