NotifyingVector2 class

Extension of the standard Vector2 class, implementing the ChangeNotifier functionality. This allows any interested party to be notified when the value of this vector changes.

This class can be used as a regular Vector2 class. However, if you do subscribe to notifications, don't forget to eventually unsubscribe in order to avoid resource leaks.

Direct modification of this vector's storage is not allowed.

Inheritance

• Object
• Vector2
• NotifyingVector2

Mixed-in types

• ChangeNotifier

Available extensions

• Vector2Extension

Constructors

NotifyingVector2(double x, double y)

factory

NotifyingVector2.all(double v)

factory

NotifyingVector2.copy(Vector2 v)

factory

NotifyingVector2.zero()

Properties

g ↔ double

getter/setter pair, inherited

gg → Vector2

no setter, inherited

ggg → Vector3

no setter, inherited

gggg → Vector4

no setter, inherited

gggr → Vector4

no setter, inherited

ggr → Vector3

no setter, inherited

ggrg → Vector4

no setter, inherited

ggrr → Vector4

no setter, inherited

gr ↔ Vector2

getter/setter pair, inherited

grg → Vector3

no setter, inherited

grgg → Vector4

no setter, inherited

grgr → Vector4

no setter, inherited

grr → Vector3

no setter, inherited

grrg → Vector4

no setter, inherited

grrr → Vector4

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

hasListeners → bool

Whether any listeners are currently registered.

no setter, inherited

isInfinite → bool

True if any component is infinite.

no setter, inherited

isNaN → bool

True if any component is NaN.

no setter, inherited

length ↔ double

Length.

getter/setter pair, inherited-getter, override-setter

length2 → double

Length squared.

no setter, inherited

r ↔ double

getter/setter pair, inherited

rg ↔ Vector2

getter/setter pair, inherited

rgg → Vector3

no setter, inherited

rggg → Vector4

no setter, inherited

rggr → Vector4

no setter, inherited

rgr → Vector3

no setter, inherited

rgrg → Vector4

no setter, inherited

rgrr → Vector4

no setter, inherited

rr → Vector2

no setter, inherited

rrg → Vector3

no setter, inherited

rrgg → Vector4

no setter, inherited

rrgr → Vector4

no setter, inherited

rrr → Vector3

no setter, inherited

rrrg → Vector4

no setter, inherited

rrrr → Vector4

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

s ↔ double

getter/setter pair, inherited

ss → Vector2

no setter, inherited

sss → Vector3

no setter, inherited

ssss → Vector4

no setter, inherited

ssst → Vector4

no setter, inherited

sst → Vector3

no setter, inherited

ssts → Vector4

no setter, inherited

sstt → Vector4

no setter, inherited

st ↔ Vector2

getter/setter pair, inherited

storage → Float64List

The components of the vector.

no setter, override

sts → Vector3

no setter, inherited

stss → Vector4

no setter, inherited

stst → Vector4

no setter, inherited

stt → Vector3

no setter, inherited

stts → Vector4

no setter, inherited

sttt → Vector4

no setter, inherited

t ↔ double

getter/setter pair, inherited

ts ↔ Vector2

getter/setter pair, inherited

tss → Vector3

no setter, inherited

tsss → Vector4

no setter, inherited

tsst → Vector4

no setter, inherited

tst → Vector3

no setter, inherited

tsts → Vector4

no setter, inherited

tstt → Vector4

no setter, inherited

tt → Vector2

no setter, inherited

tts → Vector3

no setter, inherited

ttss → Vector4

no setter, inherited

ttst → Vector4

no setter, inherited

ttt → Vector3

no setter, inherited

ttts → Vector4

no setter, inherited

tttt → Vector4

no setter, inherited

x ↔ double

getter/setter pair, inherited-getter, override-setter

xx → Vector2

no setter, inherited

xxx → Vector3

no setter, inherited

xxxx → Vector4

no setter, inherited

xxxy → Vector4

no setter, inherited

xxy → Vector3

no setter, inherited

xxyx → Vector4

no setter, inherited

xxyy → Vector4

no setter, inherited

xy ↔ Vector2

getter/setter pair, inherited-getter, override-setter

xyx → Vector3

no setter, inherited

xyxx → Vector4

no setter, inherited

xyxy → Vector4

no setter, inherited

xyy → Vector3

no setter, inherited

xyyx → Vector4

no setter, inherited

xyyy → Vector4

no setter, inherited

y ↔ double

getter/setter pair, inherited-getter, override-setter

yx ↔ Vector2

getter/setter pair, inherited-getter, override-setter

yxx → Vector3

no setter, inherited

yxxx → Vector4

no setter, inherited

yxxy → Vector4

no setter, inherited

yxy → Vector3

no setter, inherited

yxyx → Vector4

no setter, inherited

yxyy → Vector4

no setter, inherited

yy → Vector2

no setter, inherited

yyx → Vector3

no setter, inherited

yyxx → Vector4

no setter, inherited

yyxy → Vector4

no setter, inherited

yyy → Vector3

no setter, inherited

yyyx → Vector4

no setter, inherited

yyyy → Vector4

no setter, inherited

Methods

absolute() → void

Absolute value.

override

absoluteError(Vector2 correct) → double

Absolute error between this and correct

inherited

add(Vector2 arg) → void

Add arg to this.

override

addListener(VoidCallback listener) → void

Register a closure to be called when the object changes.

inherited

addScaled(Vector2 arg, double factor) → void

Add arg scaled by factor to this.

override

angleTo(Vector2 other) → double

Returns the angle between this vector and other in radians.

inherited

angleToSigned(Vector2 other) → double

Returns the signed angle between this and other in radians.

inherited

ceil() → void

Ceil entries in this.

override

clamp(Vector2 min, Vector2 max) → void

Clamp each entry n in this in the range [minn]-[maxn].

override

clamp(Vector2 min, Vector2 max) → void

Available on Vector2, provided by the Vector2Extension extension

Clamps this vector so that it is within or equals to the bounds defined by min and max.

clampLength(double min, double max) → void

Available on Vector2, provided by the Vector2Extension extension

Clamps the length of this vector.

clampScalar(double min, double max) → void

Clamp entries this in the range min-max.

override

clone() → Vector2

Clone of this.

inherited

copyFromArray(List<double> array, [int offset = 0]) → void

Copies elements from array into this starting at offset.

override

copyInto(Vector2 arg) → Vector2

Copy this into arg. Returns arg.

inherited

copyIntoArray(List<double> array, [int offset = 0]) → void

Copies this into array starting at offset.

inherited

cross(Vector2 other) → double

Cross product.

inherited

dispose() → void

Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).

inherited

distanceTo(Vector2 arg) → double

Distance from this to arg

inherited

distanceToSquared(Vector2 arg) → double

Squared distance from this to arg

inherited

divide(Vector2 arg) → void

Divide entries in this with entries in arg.

override

dot(Vector2 other) → double

Inner product.

inherited

floor() → void

Floor entries in this.

override

invert() → void

Available on Vector2, provided by the Vector2Extension extension

Inverts the vector.

inverted() → Vector2

Available on Vector2, provided by the Vector2Extension extension

Returns the inverse of this vector.

isIdentity() → bool

Available on Vector2, provided by the Vector2Extension extension

Whether the Vector2 is the identity vector or not

isZero() → bool

Available on Vector2, provided by the Vector2Extension extension

Whether the Vector2 is the zero vector or not

lerp(Vector2 to, double t) → void

Available on Vector2, provided by the Vector2Extension extension

Linearly interpolate towards another Vector2

moveToTarget(Vector2 target, double ds) → void

Available on Vector2, provided by the Vector2Extension extension

Smoothly moves this Vector2 in the direction target by a displacement given by a distance ds in that direction.

multiply(Vector2 arg) → void

Multiply entries in this with entries in arg.

override

negate() → void

Negate.

override

normalize() → double

Normalize this.

override

normalized() → Vector2

Normalized copy of this.

inherited

normalizeInto(Vector2 out) → Vector2

Normalize vector into out.

inherited

normalizeLength() → double

Normalize this. Returns length of vector before normalization. DEPRECATED: Use normalize.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

notifyListeners() → void

Call all the registered listeners.

inherited

postmultiply(Matrix2 arg) → void

Transforms this into the product of this as a row vector, postmultiplied by matrix, arg. If arg is a rotation matrix, this is a computational shortcut for applying, the inverse of the transformation.

override

projection(Vector2 other, {Vector2? out}) → Vector2

Available on Vector2, provided by the Vector2Extension extension

Project this onto other.

reflect(Vector2 normal) → void

Reflect this.

inherited

reflected(Vector2 normal) → Vector2

Reflected copy of this.

inherited

relativeError(Vector2 correct) → double

Relative error between this and correct

inherited

removeListener(VoidCallback listener) → void

Remove a previously registered closure from the list of closures that are notified when the object changes.

inherited

rotate(double angle, {Vector2? center}) → void

Available on Vector2, provided by the Vector2Extension extension

Rotates the Vector2 with angle in radians rotates around center if it is defined In a screen coordinate system (where the y-axis is flipped) it rotates in a clockwise fashion In a normal coordinate system it rotates in a counter-clockwise fashion

round() → void

Round entries in this.

override

roundToZero() → void

Round entries in this towards zero.

override

scale(double arg) → void

Scale this by arg.

override

scaled(double arg) → Vector2

Return a copy of this scaled by arg.

inherited

scaleOrthogonalInto(double scale, Vector2 out) → Vector2

Rotate this by 90 degrees then scale it. Store result in out. Return out.

inherited

scaleTo(double newLength) → void

Available on Vector2, provided by the Vector2Extension extension

Changes the length of the vector to the length provided, without changing direction.

screenAngle() → double

Available on Vector2, provided by the Vector2Extension extension

Signed angle in a coordinate system where the Y-axis is flipped.

setAll(double value) → void

Available on Vector2, provided by the Vector2Extension extension

Sets both x and y to value.

setFrom(Vector2 other) → void

Set the values by copying them from other.

override

setValues(double x_, double y_) → void

Set the values of the vector.

override

setZero() → void

Zero the vector.

override

splat(double arg) → void

Splat arg into all lanes of the vector.

override

sub(Vector2 arg) → void

Subtract arg from this.

override

taxicabDistanceTo(Vector2 other) → double

Available on Vector2, provided by the Vector2Extension extension

Distance to other vector, using the taxicab (L1) geometry.

toOffset() → Offset

Available on Vector2, provided by the Vector2Extension extension

Creates an Offset from the Vector2

toPoint() → Point<num>

Available on Vector2, provided by the Vector2Extension extension

Creates a Point from the Vector2

toPositionedRect(Vector2 size) → Rect

Available on Vector2, provided by the Vector2Extension extension

Creates a Rect starting from (x, y) and having the size of the argument Vector2

toRect() → Rect

Available on Vector2, provided by the Vector2Extension extension

Creates a Rect starting in origin and going the Vector2

toSize() → Size

Available on Vector2, provided by the Vector2Extension extension

Creates a Size from the Vector2

toString() → String

Returns a printable string

inherited

toStringWithMaxPrecision(int maxPrecision) → String

Available on Vector2, provided by the Vector2Extension extension

Stringifies the Vector2 with a maximum precision of maxPrecision.

translate(double x, double y) → void

Available on Vector2, provided by the Vector2Extension extension

Translates this Vector2 by x and y.

translated(double x, double y) → Vector2

Available on Vector2, provided by the Vector2Extension extension

Creates a new Vector2 that is the current Vector2 translated by x and y.

Operators

operator %(Vector2 mod) → Vector2

Available on Vector2, provided by the Vector2Extension extension

Modulo/Remainder

operator &(Vector2 size) → Rect

Available on Vector2, provided by the Vector2Extension extension

A rectangle constructor operator.

operator *(double scale) → Vector2

Scale.

inherited

operator +(Vector2 other) → Vector2

Add two vectors.

inherited

operator -(Vector2 other) → Vector2

Subtract two vectors.

inherited

operator /(double scale) → Vector2

Scale.

inherited

operator ==(Object other) → bool

Check if two vectors are the same.

inherited

operator [](int i) → double

Access the component of the vector at the index i.

inherited

operator []=(int i, double v) → void

Set the component of the vector at the index i.

override

operator unary-() → Vector2

Negate.

inherited