Class Matrix3

Definition

Namespace:
Tizen.NUI
Assembly:
Tizen.NUI.dll

A 3x3 matrix.
The matrix is stored as a flat array and is Column Major, i.e. the storage order is as follows (numbers represent indices of array): 

0   3   6
1   4   7
2   5   8

Each axis is contiguous in memory, so the x-axis corresponds to elements 0, 1, and 2, the y-axis corresponds to elements 3, 4, 5, the z-axis corresponds to elements 6, 7, and 8.

public class Matrix3 : Disposable
Inheritance
object
Disposable
Matrix3

Constructors

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Matrix3()

The constructor initialized as zero.

Declaration
public Matrix3()
View Source

Matrix3(float, float, float, float, float, float, float, float, float)

The constructor with nine floats.

Declaration
public Matrix3(float s00, float s01, float s02, float s10, float s11, float s12, float s20, float s21, float s22)
Parameters
Type Name Description
float s00

Value of 0 column, 0 row.
float s01

Value of 0 column, 1 row.
float s02

Value of 0 column, 2 row.
float s10

Value of 1 column, 0 row.
float s11

Value of 1 column, 1 row.
float s12

Value of 1 column, 2 row.
float s20

Value of 2 column, 0 row.
float s21

Value of 2 column, 1 row.
float s22

Value of 2 column, 2 row.
View Source

Matrix3(Matrix)

The constructor.

Declaration
public Matrix3(Matrix matrix)
Parameters
Type Name Description
Matrix matrix

The matrix to copy value. The translation and shear components are ignored.
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Matrix3(Matrix3)

The constructor.

Declaration
public Matrix3(Matrix3 matrix)
Parameters
Type Name Description
Matrix3 matrix

The matrix to copy value.

Properties

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Identity

The matrix as identity

Declaration
public static Matrix3 Identity { get; }
Property Value
Type Description
Matrix3
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this[uint]

Get/set the value of matrix by it's index.

Declaration
public float this[uint index] { get; set; }
Parameters
Type Name Description
uint index

The index to get/set value.
Property Value
Type Description
float

Methods

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EqualTo(Matrix3)

Compares if rhs is equal to.

Declaration
public bool EqualTo(Matrix3 rhs)
Parameters
Type Name Description
Matrix3 rhs

The matrix to compare.
Returns
Type Description
bool

Returns true if the two matrixes are equal, otherwise false.
View Source

GetHashCode()

Gets the hash code of this Matrix3.

Declaration
public override int GetHashCode()
Returns
Type Description
int

The Hash Code.
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Invert()

Generic brute force matrix invert.

Declaration
public bool Invert()
Returns
Type Description
bool

True if successful.
View Source

Magnitude()

Magnitude returns the average of the absolute values of the elements * 3.0f. The Magnitude of the unit matrix is therefore 1.

Declaration
public float Magnitude()
Returns
Type Description
float

The magnitude - always positive.
View Source

Multiply(Matrix3, Matrix3, Matrix3)

Function to multiply two matrices and store the result onto third.
Use this method in time critical path as it does not require temporaries.

Declaration
public static void Multiply(Matrix3 result, Matrix3 lhs, Matrix3 rhs)
Parameters
Type Name Description
Matrix3 result

Result of the multiplication.
Matrix3 lhs

The left-hand-side Matrix3. this can be same matrix as result.
Matrix3 rhs

The right-hand-side Matrix3. this cannot be same matrix as result.
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Multiply(Matrix3)

Multiply the Matrix3 and Matrix3.

Declaration
public Matrix3 Multiply(Matrix3 rhs)
Parameters
Type Name Description
Matrix3 rhs

The right-hand-side Matrix3.
Returns
Type Description
Matrix3

The matrix multiply as this * rhs.
View Source

Multiply(Vector3)

Multiply the Matrix3 and Vector3.

Declaration
public Vector3 Multiply(Vector3 rhs)
Parameters
Type Name Description
Vector3 rhs

The right-hand-side Vector3.
Returns
Type Description
Vector3

The vector multiply as this * rhs.
View Source

MultiplyAssign(Matrix3)

Multiply the Matrix3 and Matrix3. Result will be stored into this Matrix3.

Declaration
public void MultiplyAssign(Matrix3 rhs)
Parameters
Type Name Description
Matrix3 rhs

The right-hand-side Matrix3.
View Source

NotEqualTo(Matrix3)

Compares if rhs is not equal to.

Declaration
public bool NotEqualTo(Matrix3 rhs)
Parameters
Type Name Description
Matrix3 rhs

The matrix to compare.
Returns
Type Description
bool

Returns true if the two matrixes are not equal, otherwise false.
View Source

ReleaseSwigCPtr(HandleRef)

Declaration
protected override void ReleaseSwigCPtr(System.Runtime.InteropServices.HandleRef swigCPtr)
Parameters
Type Name Description
System.Runtime.InteropServices.HandleRef swigCPtr
Overrides
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Scale(float)

Multiplies all elements of the matrix by the scale value.

Declaration
public void Scale(float scale)
Parameters
Type Name Description
float scale

The value by which to scale the whole matrix.
View Source

ScaledInverseTranspose()

If the matrix is invertible, then this method inverts, transposes and scales the matrix such that the resultant element values average 1.
If the matrix is not invertible, then the matrix is left unchanged.

Declaration
public bool ScaledInverseTranspose()
Returns
Type Description
bool

True if the matrix is invertable. False otherwise
View Source

SetIdentity()

Make matrix as identity.

Declaration
public void SetIdentity()
View Source

SetValueAtIndex(uint, float)

Set the value at matrix by it's index.

Declaration
public void SetValueAtIndex(uint index, float value)
Parameters
Type Name Description
uint index

The index to set value.
float value

The value to set.
View Source

SetValueAtIndex(uint, uint, float)

Set the value at matrix by it's row index and column index.

Declaration
public void SetValueAtIndex(uint indexRow, uint indexColumn, float value)
Parameters
Type Name Description
uint indexRow

The row index to set value.
uint indexColumn

The column index to set value.
float value

The value to set.
View Source

Transpose()

Swaps the rows to columns.

Declaration
public bool Transpose()
Returns
Type Description
bool
View Source

ValueOfIndex(uint, uint)

Get the value of matrix by it's row index and column index.

Declaration
public float ValueOfIndex(uint indexRow, uint indexColumn)
Parameters
Type Name Description
uint indexRow

The row index to get value.
uint indexColumn

The column index to get value.
Returns
Type Description
float

A value of index
View Source

ValueOfIndex(uint)

Get the value of matrix by it's index.

Declaration
public float ValueOfIndex(uint index)
Parameters
Type Name Description
uint index

The index to get value.
Returns
Type Description
float

A value of index

Operators

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operator *(Matrix3, Matrix3)

Multiply Matrix3 and Matrix3.

Declaration
public static Matrix3 operator *(Matrix3 lhs, Matrix3 rhs)
Parameters
Type Name Description
Matrix3 lhs

The left-hand-side Matrix3.
Matrix3 rhs

The right-hand-side Matrix3.
Returns
Type Description
Matrix3

The Matrix3 multiply as lhs * rhs.
View Source

operator *(Matrix3, Vector3)

Multiply Matrix3 and Vector3.

Declaration
public static Vector3 operator *(Matrix3 lhs, Vector3 rhs)
Parameters
Type Name Description
Matrix3 lhs

The left-hand-side Matrix3.
Vector3 rhs

The right-hand-side Vector3.
Returns
Type Description
Vector3

The vector multiply as lhs * rhs.

Extension Methods