TinyLineChart class

A Widget that paints a simple line chart.

It is ideal for sparkline charts.

The data can be provided by a list of coordinates that can be represented by either flutter's Offset or by vector_math's Vector2.

The line will be draw using dataPoints as vertices. The data space to be painted by the chart can be bounded by passing the limits to options.

For example, if options.xMaxLimit is passed, the line chart will be painted in such a way that any data point beyond that limit will not be painted.

If both width and height are passed, the chart will try to keep aspect ratio.

See also:

• new TinyLineChart to build a line chart using Offset
• TinyLineChart.fromDataVectors to build a line chart using Vector2
• TinyLineChartOptions for more details on options.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• TinyLineChart

Constructors

TinyLineChart({Key? key, required Iterable<Offset> dataPoints, TinyLineChartOptions? options, double? width, double? height})

Creates a TinyLineChart from a Iterable of Offset.

factory

TinyLineChart.fromDataVectors({Key? key, required Iterable<Vector2> dataPoints, TinyLineChartOptions? options, double? width, double? height})

Creates a TinyLineChart from a Iterable of Vector2.

const

Properties

dataPoints → Iterable<Vector2>

The set of coordinates that represents the vertices of the line path.

final

hashCode → int

The hash code for this object.

no setter, inherited

height → double?

If non-null, require the chart to have this height.

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

options → TinyLineChartOptions

A set of options to customize the chart display, defaults to kDefaultLineChartOptions when null on construction.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

width → double?

If non-null, require the chart to have this width.

final

Methods

build(BuildContext context) → Widget

Describes the part of the user interface represented by this widget.

override

createElement() → StatelessElement

Creates a StatelessElement to manage this widget's location in the tree.

inherited

debugDescribeChildren() → List<DiagnosticsNode>

Returns a list of DiagnosticsNode objects describing this node's children.

inherited

debugFillProperties(DiagnosticPropertiesBuilder properties) → void

Add additional properties associated with the node.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode

Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.

inherited

toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String

A string representation of this object.

inherited

toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a string representation of this node and its descendants.

inherited

toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a one-line detailed description of the object.

inherited

toStringShort() → String

A short, textual description of this widget.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited