Vector2 class

2D column vector.

Implemented types

Vector

Constructors

Vector2(double x, double y): Construct a new vector with the specified values.
factory
Vector2.all(double value): Splat value into all lanes of the vector.
factory
Vector2.array(List<double> array, [ int offset = 0 ]): Initialized with values from array starting at offset.
factory
Vector2.copy(Vector2 other): Copy of other.
factory
Vector2.fromBuffer(ByteBuffer buffer, int offset): Constructs Vector2 with a storage that views given buffer starting at offset. offset has to be multiple of Float32List.bytesPerElement.
Vector2.fromFloat32List(Float32List _v2storage): Constructs Vector2 with a given Float32List as storage.
Vector2.random([Random rng ]): Generate random vector in the range (0, 0) to (1, 1). You can optionally pass your own random number generator.
factory
Vector2.zero(): Zero vector.

Properties

g ↔ double: read / write
gg → Vector2: read-only
ggg → Vector3: read-only
gggg → Vector4: read-only
gggr → Vector4: read-only
ggr → Vector3: read-only
ggrg → Vector4: read-only
ggrr → Vector4: read-only
gr ↔ Vector2: read / write
grg → Vector3: read-only
grgg → Vector4: read-only
grgr → Vector4: read-only
grr → Vector3: read-only
grrg → Vector4: read-only
grrr → Vector4: read-only
hashCode → int: The hash code for this object. [...]
read-only, override
isInfinite → bool: True if any component is infinite.
read-only
isNaN → bool: True if any component is NaN.
read-only
length ↔ double: Length.
read / write
length2 → double: Length squared.
read-only
r ↔ double: read / write
rg ↔ Vector2: read / write
rgg → Vector3: read-only
rggg → Vector4: read-only
rggr → Vector4: read-only
rgr → Vector3: read-only
rgrg → Vector4: read-only
rgrr → Vector4: read-only
rr → Vector2: read-only
rrg → Vector3: read-only
rrgg → Vector4: read-only
rrgr → Vector4: read-only
rrr → Vector3: read-only
rrrg → Vector4: read-only
rrrr → Vector4: read-only
s ↔ double: read / write
ss → Vector2: read-only
sss → Vector3: read-only
ssss → Vector4: read-only
ssst → Vector4: read-only
sst → Vector3: read-only
ssts → Vector4: read-only
sstt → Vector4: read-only
st ↔ Vector2: read / write
storage → Float32List: The components of the vector.
read-only, override
sts → Vector3: read-only
stss → Vector4: read-only
stst → Vector4: read-only
stt → Vector3: read-only
stts → Vector4: read-only
sttt → Vector4: read-only
t ↔ double: read / write
ts ↔ Vector2: read / write
tss → Vector3: read-only
tsss → Vector4: read-only
tsst → Vector4: read-only
tst → Vector3: read-only
tsts → Vector4: read-only
tstt → Vector4: read-only
tt → Vector2: read-only
tts → Vector3: read-only
ttss → Vector4: read-only
ttst → Vector4: read-only
ttt → Vector3: read-only
ttts → Vector4: read-only
tttt → Vector4: read-only
x ↔ double: read / write
xx → Vector2: read-only
xxx → Vector3: read-only
xxxx → Vector4: read-only
xxxy → Vector4: read-only
xxy → Vector3: read-only
xxyx → Vector4: read-only
xxyy → Vector4: read-only
xy ↔ Vector2: read / write
xyx → Vector3: read-only
xyxx → Vector4: read-only
xyxy → Vector4: read-only
xyy → Vector3: read-only
xyyx → Vector4: read-only
xyyy → Vector4: read-only
y ↔ double: read / write
yx ↔ Vector2: read / write
yxx → Vector3: read-only
yxxx → Vector4: read-only
yxxy → Vector4: read-only
yxy → Vector3: read-only
yxyx → Vector4: read-only
yxyy → Vector4: read-only
yy → Vector2: read-only
yyx → Vector3: read-only
yyxx → Vector4: read-only
yyxy → Vector4: read-only
yyy → Vector3: read-only
yyyx → Vector4: read-only
yyyy → Vector4: read-only
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited

Methods

absolute() → void: Absolute value.
absoluteError(Vector2 correct) → double: Absolute error between this and correct
add(Vector2 arg) → void: Add arg to this.
addScaled(Vector2 arg, double factor) → void: Add arg scaled by factor to this.
angleTo(Vector2 other) → double: Returns the angle between this vector and other in radians.
angleToSigned(Vector2 other) → double: Returns the signed angle between this and other in radians.
ceil() → void: Ceil entries in this.
clamp(Vector2 min, Vector2 max) → void: Clamp each entry n in this in the range [minn]-[maxn].
clampScalar(double min, double max) → void: Clamp entries this in the range min-max.
clone() → Vector2: Clone of this.
copyFromArray(List<double> array, [ int offset = 0 ]) → void: Copies elements from array into this starting at offset.
copyInto(Vector2 arg) → Vector2: Copy this into arg. Returns arg.
copyIntoArray(List<double> array, [ int offset = 0 ]) → void: Copies this into array starting at offset.
cross(Vector2 other) → double: Cross product.
distanceTo(Vector2 arg) → double: Distance from this to arg
distanceToSquared(Vector2 arg) → double: Squared distance from this to arg
divide(Vector2 arg) → void: Divide entries in this with entries in arg.
dot(Vector2 other) → double: Inner product.
floor() → void: Floor entries in this.
multiply(Vector2 arg) → void: Multiply entries in this with entries in arg.
negate() → void: Negate.
normalize() → double: Normalize this.
normalized() → Vector2: Normalized copy of this.
normalizeInto(Vector2 out) → Vector2: Normalize vector into out.
normalizeLength() → double: Normalize this. Returns length of vector before normalization. DEPRECATED: Use normalize.
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.
reflect(Vector2 normal) → void: Reflect this.
reflected(Vector2 normal) → Vector2: Reflected copy of this.
relativeError(Vector2 correct) → double: Relative error between this and correct
round() → void: Round entries in this.
roundToZero() → void: Round entries in this towards zero.
scale(double arg) → void: Scale this by arg.
scaled(double arg) → Vector2: Return a copy of this scaled by arg.
scaleOrthogonalInto(double scale, Vector2 out) → Vector2: Rotate this by 90 degrees then scale it. Store result in out. Return out.
setFrom(Vector2 other) → void: Set the values by copying them from other.
setValues(double x_, double y_) → void: Set the values of the vector.
setZero() → void: Zero the vector.
splat(double arg) → void: Splat arg into all lanes of the vector.
sub(Vector2 arg) → void: Subtract arg from this.
toString() → String: Returns a printable string
override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed. [...]
inherited

Operators

operator *(double scale) → Vector2: Scale.
operator +(Vector2 other) → Vector2: Add two vectors.
operator -(Vector2 other) → Vector2: Subtract two vectors.
operator /(double scale) → Vector2: Scale.
operator ==(Object other) → bool: Check if two vectors are the same.
override
operator [](int i) → double: Access the component of the vector at the index i.
operator []=(int i, double v) → void: Set the component of the vector at the index i.
operator unary-() → Vector2: Negate.

Static Methods

max(Vector2 a, Vector2 b, Vector2 result) → void: Set the values of result to the maximum of a and b for each line.
min(Vector2 a, Vector2 b, Vector2 result) → void: Set the values of result to the minimum of a and b for each line.
mix(Vector2 min, Vector2 max, double a, Vector2 result) → void: Interpolate between min and max with the amount of a using a linear interpolation and store the values in result.

vector_math library

Vector2 class

Constructors

Properties

Methods

Operators

Static Methods