RadialGradient class
Creates a radial gradient centered at center that ends at radius distance from the center.
If offsets is provided, offsets[i] is a number from 0.0 to 1.0
that specifies where colors[i] begins in the gradient. If offsets is
not provided, then only two stops, at 0.0 and 1.0, are implied (and
colors must therefore only have two entries).
The behavior before and after the radius is described by the tileMode argument. For details, see the TileMode enum.
If transform is provided, the gradient fill will be transformed by the specified affine matrix relative to the local coordinate system.
If focalPoint is provided and not equal to center and focalRadius
is provided and not equal to 0.0, the generated shader will be a two point
conical radial gradient, with focalPoint being the center of the focal
circle. If focalPoint is provided and not equal to center, at least one
of the two offsets must not be equal to Point.zero.
Constructors
-
RadialGradient({required String id, required Point center, required double radius, List<
Color> ? colors, List<double> ? offsets, TileMode? tileMode, AffineMatrix? transform, Point? focalPoint, GradientUnitMode? unitMode}) -
Creates a new radial gradient object with the specified properties.
const
Properties
- center → Point
-
The central point of the gradient.
final
-
colors
→ List<
Color> ? -
The colors to blend from the start to end points.
finalinherited
- focalPoint → Point?
-
If specified, creates a two-point conical gradient using center and the
focalPoint.
final
- hashCode → int
-
The hash code for this object.
no setteroverride
- id → String
-
The reference identifier for this gradient.
finalinherited
-
offsets
→ List<
double> ? -
The positions to apply colors to. Must be the same length as colors.
finalinherited
- radius → double
-
The colors to blend from the start to end points.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- tileMode → TileMode?
-
Specifies the meaning of
fromandto.finalinherited - transform → AffineMatrix?
-
The transform, if any, to apply to the gradient.
finalinherited
- unitMode → GradientUnitMode?
-
Whether the coordinates in this gradient should be transformed by the
space this object occupies or by the root bounds.
finalinherited
Methods
-
applyBounds(
Rect bounds, AffineMatrix transform) → RadialGradient -
Apply the bounds and transform the shader.
override
-
applyProperties(
Gradient ref) → RadialGradient -
Creates a new gradient
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override