Packagelaya.d3.math
Classpublic class Matrix3x3
InheritanceMatrix3x3 Inheritance Object
Implements laya.d3.core.IClone

Matrix3x3 类用于创建3x3矩阵。


Public Properties
 PropertyDefined By
  elements : Float32Array
矩阵元素数组
Matrix3x3
Public Methods
 MethodDefined By
  
Matrix3x3()
创建一个 Matrix3x3 实例。
Matrix3x3
  
clone():*
克隆。
Matrix3x3
  
cloneTo(destObject:*):void
克隆。
Matrix3x3
  
createFromMatrix4x4(sou:Matrix4x4, out:Matrix3x3):void
[static] 从4x4矩阵转换为一个3x3的矩阵（原则为upper-left,忽略第四行四列）
Matrix3x3
  
createFromRotation(rad:Number, out:Matrix3x3):void
[static] 根据指定旋转生成3x3矩阵
Matrix3x3
  
createFromScaling(scale:Vector2, out:Matrix3x3):void
[static] 根据制定缩放生成3x3矩阵
Matrix3x3
  
createFromTranslation(trans:Vector2, out:Matrix3x3):void
[static] 根据指定平移生成3x3矩阵
Matrix3x3
  
determinant():Number
计算3x3矩阵的行列式
Matrix3x3
  
identity():void
设置已有的矩阵为单位矩阵
Matrix3x3
  
invert(out:Matrix3x3):void
计算3x3矩阵的逆矩阵
Matrix3x3
  
lookAt(eye:Vector3, target:Vector3, up:Vector3, out:Matrix3x3):void
[static] 计算观察3x3矩阵
Matrix3x3
  
multiply(left:Matrix3x3, right:Matrix3x3, out:Matrix3x3):void
[static] 两个3x3矩阵的相乘
Matrix3x3
  
rotate(rad:Number, out:Matrix3x3):void
根据指定角度旋转3x3矩阵
Matrix3x3
  
scale(scale:Vector2, out:Matrix3x3):void
据制定缩放3x3矩阵
Matrix3x3
  
translate(trans:Vector2, out:Matrix3x3):void
通过一个二维向量转换3x3矩阵
Matrix3x3
  
transpose(out:Matrix3x3):void
计算3x3矩阵的转置矩阵
Matrix3x3
Public Constants
 ConstantDefined By
  DEFAULT : Matrix3x3
[static] 默认矩阵,禁止修改
Matrix3x3
Property Detail
elementsproperty
public var elements:Float32Array

矩阵元素数组

Constructor Detail
Matrix3x3()Constructor
public function Matrix3x3()

创建一个 Matrix3x3 实例。

Method Detail
clone()method
public function clone():*

克隆。

Returns
* — 克隆副本。
cloneTo()method 
public function cloneTo(destObject:*):void

克隆。

Parameters

destObject:* — 克隆源。

createFromMatrix4x4()method 
public static function createFromMatrix4x4(sou:Matrix4x4, out:Matrix3x3):void

从4x4矩阵转换为一个3x3的矩阵（原则为upper-left,忽略第四行四列）

Parameters

sou:Matrix4x4 — 4x4源矩阵
 
out:Matrix3x3 — 3x3输出矩阵

createFromRotation()method 
public static function createFromRotation(rad:Number, out:Matrix3x3):void

根据指定旋转生成3x3矩阵

Parameters

rad:Number — 旋转值
 
out:Matrix3x3 — 输出矩阵

createFromScaling()method 
public static function createFromScaling(scale:Vector2, out:Matrix3x3):void

根据制定缩放生成3x3矩阵

Parameters

scale:Vector2 — 缩放值
 
out:Matrix3x3 — 输出矩阵

createFromTranslation()method 
public static function createFromTranslation(trans:Vector2, out:Matrix3x3):void

根据指定平移生成3x3矩阵

Parameters

trans:Vector2 — 平移
 
out:Matrix3x3 — 输出矩阵

determinant()method 
public function determinant():Number

计算3x3矩阵的行列式

Returns
Number — 矩阵的行列式
identity()method 
public function identity():void

设置已有的矩阵为单位矩阵

invert()method 
public function invert(out:Matrix3x3):void

计算3x3矩阵的逆矩阵

Parameters

out:Matrix3x3 — 输出的逆矩阵

lookAt()method 
public static function lookAt(eye:Vector3, target:Vector3, up:Vector3, out:Matrix3x3):void

计算观察3x3矩阵

Parameters

eye:Vector3 — 观察者位置
 
target:Vector3 — 目标位置
 
up:Vector3 — 上向量
 
out:Matrix3x3 — 输出3x3矩阵

multiply()method 
public static function multiply(left:Matrix3x3, right:Matrix3x3, out:Matrix3x3):void

两个3x3矩阵的相乘

Parameters

left:Matrix3x3 — 左矩阵
 
right:Matrix3x3 — 右矩阵
 
out:Matrix3x3 — 输出矩阵

rotate()method 
public function rotate(rad:Number, out:Matrix3x3):void

根据指定角度旋转3x3矩阵

Parameters

rad:Number — 旋转角度
 
out:Matrix3x3 — 输出矩阵

scale()method 
public function scale(scale:Vector2, out:Matrix3x3):void

据制定缩放3x3矩阵

Parameters

scale:Vector2 — 缩放值
 
out:Matrix3x3 — 输出矩阵

translate()method 
public function translate(trans:Vector2, out:Matrix3x3):void

通过一个二维向量转换3x3矩阵

Parameters

trans:Vector2 — 转换向量
 
out:Matrix3x3 — 输出矩阵

transpose()method 
public function transpose(out:Matrix3x3):void

计算3x3矩阵的转置矩阵

Parameters

out:Matrix3x3 — 输出矩阵

Constant Detail
DEFAULTConstant
public static const DEFAULT:Matrix3x3

默认矩阵,禁止修改





Fri Sep 29 2017, 06:34 PM +08:00