SquarifiedTreeMapRenderer<D> class

A treemap renderer that renders a squarified treemap.

Constructors

SquarifiedTreeMapRenderer({String? rendererId, TreeMapRendererConfig<D>? config})

Properties

componentBounds → Rectangle<int>?

Bounding box for drawing this component.

no setter, inherited

config → TreeMapRendererConfig<D>

Renderer configuration.

final, inherited

drawBounds → Rectangle<int>?

no setter, inherited

graphicsFactory ↔ GraphicsFactory?

getter/setter pair, inherited

hashCode → int

The hash code for this object.

no setter, inherited

isRtl → bool

Rtl direction setting from chart context.

no setter, inherited

isSeriesRenderer → bool

Whether or not this component is a series renderer that draws series data.

no setter, inherited

labelDecorator → TreeMapLabelDecorator<D>?

Decorator for rendering treemap node label.

final, inherited

layoutConfig → LayoutViewConfig

Layout params for this component.

final, inherited

rendererId ↔ String

Unique identifier for this renderer. Any Series on a chart with a matching rendererIdKey will be drawn by this renderer.

getter/setter pair, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

symbolRenderer ↔ SymbolRenderer?

Symbol renderer for this renderer.

getter/setter pair, inherited

Methods

addPositionToDetailsForSeriesDatum(DatumDetails<D> details, SeriesDatum<D> seriesDatum) → DatumDetails<D>

Adds chart position data to details.

inherited

areaForRectangle(Rectangle<num> rect) → num

Gets the area of a Rectangle.

inherited

areaForTreeNode(TreeNode<Object> node) → num

Gets the area for a tree node.

inherited

assignMissingColors(Iterable<MutableSeries<D>> seriesList, {required bool emptyCategoryUsesSinglePalette}) → void

Assigns missing colors in case when color accessor functions are not set.

inherited

assignMissingStrokeWidths(Iterable<MutableSeries<D>> seriesList) → void

Assigns missing stroke widths in case when strokeWidthPx accessor functions are not set.

inherited

availableLayoutBoundingRect(TreeNode<Object> node) → MutableRectangle<num>

Available bounding rectangle that can be used to lay out the child renderer elements.

inherited

configureDomainAxes(List<MutableSeries<D>> seriesList) → void

Adds the domain values for the given series to the chart's domain axis.

inherited

configureMeasureAxes(List<MutableSeries<D>> seriesList) → void

Adds the measure values for the given series to the chart's measure axes.

inherited

configureSeries(List<MutableSeries<D>> seriesList) → void

Performs basic configuration for the series, before it is pre-processed.

inherited

getDetailsForSeriesDatum(SeriesDatum<D> seriesDatum) → DatumDetails<D>

Get an expanded set of processed DatumDetails for a given SeriesDatum.

inherited

getNearestDatumDetailPerSeries(Point<double> chartPoint, bool byDomain, Rectangle<int>? boundsOverride, {bool selectOverlappingPoints = false, bool selectExactEventLocation = false}) → List<DatumDetails<D>>

Datum details of nearest rectangles in the treemap.

inherited

isPointWithinBounds(Point<double> chartPoint, Rectangle<int>? bounds) → bool

Returns true of chartPoint is within the component bounds for this renderer.

inherited

layout(Rectangle<int> componentBounds, Rectangle<int> drawAreaBounds) → void

Layout this component.

inherited

measure(int maxWidth, int maxHeight) → ViewMeasuredSizes?

Measure and return the size of this component.

inherited

measureForTreeNode(TreeNode<Object> node) → num

Gets the measure for a tree node.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onAttach(BaseChart<D> chart) → void

Handles any setup of the renderer that needs to be deferred until it is attached to a chart.

inherited

onDetach(BaseChart<D> chart) → void

Handles any clean-up of the renderer that needs to be performed when it is detached from a chart.

inherited

paint(ChartCanvas canvas, double animationPercent) → void

Renders the series data on the canvas, using the data generated during the update call.

inherited

position(Iterable<TreeNode<Object>> nodes, MutableRectangle<num> boundingRect, num side, num layoutArea) → void

Positions each renderer element in nodes within the boundingRect.

inherited

preprocessSeries(List<MutableSeries<D>> seriesList) → void

Pre-calculates some details for the series that will be needed later during the drawing phase.

inherited

scaleArea(Iterable<TreeNode<Object>> children, num scaleFactor) → void

Scales the area of each renderer element in children by a scaleFactor.

inherited

tile(TreeNode<Object> node) → void

Uses squarification as the tiling algorithm for this tree map.

toString() → String

A string representation of this object.

inherited

update(List<ImmutableSeries<D>> seriesList, bool isAnimating) → void

Generates rendering data needed to paint the data on the chart.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited