# Matrix3D Structure

**.NET Framework (current version)**

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Represents a 4 x 4 matrix used for transformations in 3-D space.

**Namespace:**System.Windows.Media.Media3D

**Assembly:**PresentationCore (in PresentationCore.dll)

Name | Description | |
---|---|---|

Matrix3D(Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double, Double) | Constructor that sets matrix's initial values. |

Name | Description | |
---|---|---|

Determinant | Retrieves the determinant of this Matrix3D structure. | |

HasInverse | Gets a value that indicates whether this Matrix3D is invertible. | |

Identity | Changes a Matrix3D structure into an identity Matrix3D. | |

IsAffine | Gets a value that indicates whether this Matrix3D structure is affine. | |

IsIdentity | Determines whether this Matrix3D structure is an identity Matrix3D. | |

M11 | Gets or sets the value of the first row and first column of this Matrix3D structure. | |

M12 | Gets or sets the value of the first row and second column of this Matrix3D structure. | |

M13 | Gets or sets the value of the first row and third column of this Matrix3D structure. | |

M14 | Gets or sets the value of the first row and fourth column of this Matrix3D structure. | |

M21 | Gets or sets the value of the second row and first column of this Matrix3D structure. | |

M22 | Gets or sets the value of the second row and second column of this Matrix3D structure. | |

M23 | Gets or sets the value of the second row and third column of this Matrix3D structure. | |

M24 | Gets or sets the value of the second row and fourth column of this Matrix3D structure. | |

M31 | Gets or sets the value of the third row and first column of this Matrix3D structure. | |

M32 | Gets or sets the value of the third row and second column of this Matrix3D structure. | |

M33 | Gets or sets the value of the third row and third column of this Matrix3D structure. | |

M34 | Gets or sets the value of the third row and fourth column of this Matrix3D structure. | |

M44 | Gets or sets the value of the fourth row and fourth column of this Matrix3D structure. | |

OffsetX | Gets or sets the value of the fourth row and first column of this Matrix3D structure. | |

OffsetY | Gets or sets the value of the fourth row and second column of this Matrix3D structure. | |

OffsetZ | Gets or sets the value of the fourth row and third column of this Matrix3D structure. |

Name | Description | |
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Append(Matrix3D) | Appends a specified matrix to the current matrix. | |

Equals(Matrix3D) | Tests equality between two matrices. | |

Equals(Matrix3D, Matrix3D) | Tests equality between two matrices. | |

Equals(Object) | Tests equality between two matrices. (Overrides ValueType.Equals(Object).) | |

GetHashCode() | Returns the hash code for this matrix (Overrides ValueType.GetHashCode().) | |

GetType() | ||

Invert() | Inverts this Matrix3D structure. | |

Multiply(Matrix3D, Matrix3D) | Multiplies the specified matrices. | |

Parse(String) | Converts a string representation of a Matrix3D structure into the equivalent Matrix3D structure. | |

Prepend(Matrix3D) | Prepends a specified matrix to the current matrix. | |

Rotate(Quaternion) | Appends a rotation transform to the current Matrix3D. | |

RotateAt(Quaternion, Point3D) | Rotates this Matrix3D about the specified Point3D. | |

RotateAtPrepend(Quaternion, Point3D) | Prepends a rotation about a specified center Point3D to this Matrix3D structure. | |

RotatePrepend(Quaternion) | Prepends a rotation specified by a Quaternion to this Matrix3D structure. | |

Scale(Vector3D) | Appends the specified scale Vector3D to this Matrix3D structure. | |

ScaleAt(Vector3D, Point3D) | ||

ScaleAtPrepend(Vector3D, Point3D) | Prepends the specified scale transformation about the specified Point3D to this Matrix3D structure. | |

ScalePrepend(Vector3D) | Prepends the specifed scale Vector3D to the current Matrix3D structure. | |

SetIdentity() | Changes this Matrix3D structure into an identity matrix. | |

ToString() | Creates a string representation of this Matrix3D structure. (Overrides ValueType.ToString().) | |

ToString(IFormatProvider) | Creates a string representation of this Matrix3D structure. | |

Transform(Point3D) | Transforms the specified Point3D by the Matrix3D and returns the result. | |

Transform(Point3D()) | Transforms the specified Point3D objects in the array by the Matrix3D. | |

Transform(Point4D) | Transforms the specified Point4D by the Matrix3D and returns the result.. | |

Transform(Point4D()) | Transforms the specified Point4D objects in the array by the Matrix3D and returns the result. | |

Transform(Vector3D) | Transforms the specified Vector3D by this Matrix3D. | |

Transform(Vector3D()) | Transforms the specified Vector3D objects in the array by this Matrix3D. | |

Translate(Vector3D) | Appends a translation of the specified offset to the current Matrix3D structure. | |

TranslatePrepend(Vector3D) | Prepends a translation of the specified offset to this Matrix3D structure. |

Name | Description | |
---|---|---|

Equality(Matrix3D, Matrix3D) | Compares two Matrix3D instances for exact equality. | |

Inequality(Matrix3D, Matrix3D) | Compares two Matrix3D instances for exact inequality. | |

Multiply(Matrix3D, Matrix3D) | Multiplies the specified matrices. |

Name | Description | |
---|---|---|

IFormattable.ToString(String, IFormatProvider) | Formats the value of the current instance using the specified format. |

Matrix3D has the following row-vector syntax:

Note that because the fourth column is also accessible, the matrix allows developers to represent affine as well as non-affine transforms.

Matrices can be appended or prepended to other matrices. Appending matrix A to matrix B denotes a transformation by B and then by A:

<object property="m11, m12, m13, m21, m22, m23, m31, m32, m33, offsetX, offsetY, offsetZ"/> - or - <object property="Identity"/>

*M11*The value in the first row and first column of this Matrix3D. For more information, see the M11 property.

*M12*The value in the first row and second column of this Matrix3D. For more information, see the M12 property.

*M13*The value in the first row and third column of this Matrix3D. For more information, see the M13 property.

*M14*The value in the first row and fourth column of this Matrix3D. For more information, see the M14 property.

*M21*The value in the second row and first column of this Matrix3D. For more information, see the M21 property.

*M22*The value in the second row and second column of this Matrix3D. For more information, see the M22 property.

*M23*The value in the second row and third column of this Matrix3D. For more information, see the M23 property.

*M24*The value in the second row and fourth column of this Matrix3D. For more information, see the M24 property.

*M31*The value in the third row and first column of this Matrix3D. For more information, see the M31 property.

*M32*The value in the third row and second column of this Matrix3D. For more information, see the M32 property.

*M33*The value in the third row and third column of this Matrix3D. For more information, see the M34 property.

*M34*The value in the third row and fourth column of this Matrix3D. For more information, see the M33 property.

*M44*The value in the fourth row and fourth column of this Matrix3D. For more information, see the M44 property.

*offsetX*The value in the fourth row and first column of this Matrix3D. For more information, see the OffsetX property.

*offsetY*The value in the fourth row and second column of this Matrix3D. For more information, see the OffsetY property.

*offsetZ*The value in the fourth row and third column of this Matrix3D. For more information, see the OffsetZ property.

' Multiplies a Vector3D by a Matrix3D using the static Multiply method. ' Returns a Vector3D. Dim vector1 As New Vector3D(20, 30, 40) Dim matrix1 As New Matrix3D(10, 10, 10, 0, 20, 20, 20, 0, 30, 30, 30, 0, 5, 10, 15, 1) Dim vectorResult As New Vector3D() vectorResult = Vector3D.Multiply(vector1,matrix1) ' vector Result is equal to (2000, 2000, 2000)

**.NET Framework**

Available since 3.0

**Silverlight**

Available since 3.0

**Windows Phone Silverlight**

Available since 7.0

Any public static (
**Shared**
in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.