ChartLineLayer class
Represents a layer in a chart that displays lines connecting points.
This class extends ChartItemLayer and specializes in handling lines.
- Inheritance
-
- Object
- ChartLayer
- ChartItemLayer<
Point> - ChartLineLayer
Constructors
-
ChartLineLayer.gradient({required List<
Point> items, required Map<double, Color> ? colors, double lineWidth = 1, List<double> ? dashArray, double? smoothness}) - Creates a new instance of ChartLineLayer where colors can be defined for y values resulting in a gradient.
-
ChartLineLayer.positiveNegative({required List<
Point> items, required Color? positiveColor, required Color? negativeColor, double lineWidth = 1, List<double> ? dashArray, double? smoothness}) -
Creates a new instance of ChartLineLayer with different colors for the positive and negative portion of the chart.
const
-
ChartLineLayer.solid({required List<
Point> items, required Color color, double lineWidth = 1, List<double> ? dashArray, double? smoothness}) -
Creates a new instance of ChartLineLayer with one solid color for the complete line.
const
Properties
- bounds → BoundingBox
-
Returns the bounding box of the chart layer.
no setterinherited
-
colors
→ Map<
double, Color> ? -
The colors of the line at each y value.
final
-
dashArray
→ List<
double> ? -
The dash pattern for the line, if any.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- isStatic → bool
-
Whether the layer should remain static in a scrollable chart
no setterinherited
-
items
→ List<
Point> -
The list of items contained in this layer.
finalinherited
- lineWidth → double
-
The width of the line.
final
- negativeColor → Color?
-
The color of the line when the value is negative.
final
- positiveColor → Color?
-
The color of the line when the value is positive.
final
-
props
→ List<
Object?> -
The list of properties that will be used to determine whether
two instances are equal.
no setteroverride
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- smoothness → double?
-
The smoothness of the line, if supplied the line will curve instead of hitting the exact points.
final
- stringify → bool?
-
If set to
true, the toString method will be overridden to output this instance's props.no setterinherited
Methods
-
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