Sp3dV2D class

(en)A class for handling 2D vectors. This class acts as Final and cannot change its value.

(ja)二次元ベクトルを扱うためのクラスです。このクラスはFinalとして機能し、値を変更できません。

Author Masahide Mori

First edition creation date 2021-09-30 12:18:31

Annotations

• @immutable

Constructors

Sp3dV2D(double x, double y)

Constructor

const

Properties

hashCode → int

The hash code for this object.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

x → double

final

y → double

final

Methods

angleTo(Sp3dV2D other, {Sp3dV2D origin = const Sp3dV2D(0, 0)}) → double

(en)Computes and returns the angle between this vector and the specified vector. The unit of the return value is radians.

copyWith({double? x, double? y}) → Sp3dV2D

Creates a copy with only the specified values rewritten.

deepCopy() → Sp3dV2D

Deep copy this object.

direction() → double

(en)Returns the clockwise angle of this vector. The unit of the return value is radians.

distTo(Sp3dV2D other) → double

(en)Computes and returns the Euclidean distance between this vector and the specified vector.

dotTo(Sp3dV2D other) → double

(en)Return dot product.

equals(Sp3dV2D other, double eRange) → bool

(en)Compare while considering the error. Returns true if x, y are all within the e_range.

exchangedXY() → Sp3dV2D

(en)Returns a vector with x and y swapped.

isZero() → bool

(en)Return true if parameter is all zero, otherwise false.

len() → double

(en)Return vector length.

nor() → Sp3dV2D

(en)Return Normalized Vector.

norSafe({double eps = 1e-6}) → Sp3dV2D

(en) Safe normalization for rendering / UI use. This method is not intended for mathematical computations.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

rotated(Sp3dV2D center, double radian) → Sp3dV2D

(en)Returns a new vector that rotates this vector.

toDict() → Map<String, dynamic>

Convert to Map.

toOffset() → Offset

(en)Converts this vector to an offset and returns it.

toString() → String

A string representation of this object.

override

toV3D() → Sp3dV3D

(en)Converts this vector to a three-dimensional vector and returns it. The z-axis value is initialized to 0.

Operators

operator *(num scalar) → Sp3dV2D

operator +(Sp3dV2D v) → Sp3dV2D

operator -(Sp3dV2D v) → Sp3dV2D

operator /(num scalar) → Sp3dV2D

operator ==(Object other) → bool

The equality operator.

override

Static Methods

angle(Sp3dV2D a, Sp3dV2D b, {Sp3dV2D origin = const Sp3dV2D(0, 0)}) → double

(en)Computes and returns the angle between vectorA and the vectorB. The unit of the return value is radians.

angleFromLine(Sp3dV2D sp, Sp3dV2D ep) → double

(en)Returns the angle of the line from 0 to 360 degrees.

dist(Sp3dV2D a, Sp3dV2D b) → double

(en)Return euclidean distance.

dot(Sp3dV2D a, Sp3dV2D b) → double

(en)Return dot product.

errorTolerance(double v, double c, double eRange) → bool

(en)This function considers the error in the comparison. Returns true if v is within error e_range with respect to c.

fromDict(Map<String, dynamic> src) → Sp3dV2D

convert from Map.

fromOffset(Offset offset) → Sp3dV2D

(en)Convert from offset to vector.

Constants

className → const String

version → const String