AreaChartRenderer class

Draws a smooth area chart from [ChartPoint]: Catmull-Rom spline, soft gradient fill that fades to the baseline, a left-to-right reveal, and white-haloed vertex dots.

Inheritance
Implemented types

Constructors

AreaChartRenderer({required List<ChartPoint> points, Color? color})
Creates a renderer for a single smooth area series of points.

Properties

accessibilityLabel → String
A short label naming the kind of chart, e.g. "Line chart", for semantics.
no setteroverride
accessibilityValue → String
A value summarizing the chart's data — counts, range, a few points.
no setteroverride
color → Color
The stroke and gradient-fill color of the area.
final
hashCode → int
The hash code for this object.
no setterinherited
points → List<ChartPoint>
The ordered data points of the series.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

buildScene(Size size) → ChartScene
Builds the hit-test ChartScene for size. Implementations must derive it from the same math used in ChartRenderer.draw, so the marks line up with the pixels exactly.
override
draw(Canvas canvas, Size size, DrafterThemeColors theme, double progress) → void
Draws the chart. progress is the entrance reveal in 0..1 (1 = fully drawn).
override
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