SimpleContinuousHeatmapChart class

A rectangular density grid for continuous x/y observations, operational hotspots, spatial summaries, product telemetry, and learning analytics.

Inheritance
Available extensions

Constructors

SimpleContinuousHeatmapChart({Key? key, List<SimpleContinuousHeatmapPoint> points = const [], List<SimpleContinuousHeatmapBin> bins = const [], int xBins = 6, int yBins = 5, SimpleBarChartStyle style = SimpleBarChartStyle.elegant, double? minX, double? maxX, double? minY, double? maxY, double? minValue, double? maxValue, double height = 260, EdgeInsets padding = _defaultPadding, Color? lowColor, Color? highColor, Color? emptyColor, Color? gridColor, Color? activeColor, TextStyle? labelStyle, TextStyle? valueStyle, bool showGrid = true, bool showXLabels = true, bool showYLabels = true, bool showValues = false, bool showLegend = true, bool showTooltip = true, bool showActiveCell = true, double cellGap = 3, double cellRadius = 5, SimpleContinuousHeatmapValueFormatter? valueFormatter, SimpleContinuousHeatmapValueFormatter? rangeFormatter, SimpleContinuousHeatmapTapCallback? onBinTap, SimpleContinuousHeatmapTooltipBuilder? tooltipBuilder, WidgetBuilder? emptyBuilder, String? semanticLabel, bool excludeFromSemantics = false, Duration animationDuration = const Duration(milliseconds: 650), Curve animationCurve = Curves.easeOutCubic})
const

Properties

activeColor → Color?
final
animationCurve → Curve
final
animationDuration → Duration
final
apiContract → ChartApiContract?

Available on Widget, provided by the ChartWidgetApiContractExtension extension

no setter
bins → List<SimpleContinuousHeatmapBin>
final
cellGap → double
final
cellRadius → double
final
emptyBuilder → WidgetBuilder?
final
emptyColor → Color?
final
excludeFromSemantics → bool
final
gridColor → Color?
final
hashCode → int
The hash code for this object.
no setterinherited
height → double
final
highColor → Color?
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
labelStyle → TextStyle?
final
lowColor → Color?
final
maxValue → double?
final
maxX → double?
final
maxY → double?
final
minValue → double?
final
minX → double?
final
minY → double?
final
onBinTap → SimpleContinuousHeatmapTapCallback?
final
padding → EdgeInsets
final
points → List<SimpleContinuousHeatmapPoint>
final
rangeFormatter → SimpleContinuousHeatmapValueFormatter?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semanticLabel → String?
final
showActiveCell → bool
final
showGrid → bool
final
showLegend → bool
final
showTooltip → bool
final
showValues → bool
final
showXLabels → bool
final
showYLabels → bool
final
style → SimpleBarChartStyle
final
tooltipBuilder → SimpleContinuousHeatmapTooltipBuilder?
final
valueFormatter → SimpleContinuousHeatmapValueFormatter?
final
valueStyle → TextStyle?
final
xBins → int
final
yBins → int
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
recommendsApiField(String field) → bool

Available on Widget, provided by the ChartWidgetApiContractExtension extension

supportsApiField(String field) → bool

Available on Widget, provided by the ChartWidgetApiContractExtension extension

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, int wrapWidth = 65}) → 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