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# Matrix Constructor

.NET Framework 4.5

Initializes a new instance of the Matrix structure.

Namespace:  System.Windows.Media
Assembly:  WindowsBase (in WindowsBase.dll)
```public Matrix(
double m11,
double m12,
double m21,
double m22,
double offsetX,
double offsetY
)
```

#### Parameters

m11
Type: System.Double

The new Matrix structure's M11 coefficient.

m12
Type: System.Double

The new Matrix structure's M12 coefficient.

m21
Type: System.Double

The new Matrix structure's M21 coefficient.

m22
Type: System.Double

The new Matrix structure's M22 coefficient.

offsetX
Type: System.Double

The new Matrix structure's OffsetX coefficient.

offsetY
Type: System.Double

The new Matrix structure's OffsetY coefficient.

This example shows how to use a Matrix to transform Point and Vector objects.

```private void transformExamples()
{

Matrix myMatrix = new Matrix(5, 10, 15, 20, 25, 30);

//
// Transform a point.
//
Point myPoint = new Point(15,25);

// pointResult is (475, 680).
Point pointResult = myMatrix.Transform(myPoint);

//
// Transform an array of points.
//
Point[] myPointArray = new Point[]
{new Point(15,25), new Point(30,35)};

// myPointArray[0] becomes (475, 680).
// myPointArray[1] becomes (700, 1030).
myMatrix.Transform(myPointArray);

//
// Transform a vector.
//
Vector myVector = new Vector(15,25);

// vectorResult becomes (450, 650).
Vector vectorResult = myMatrix.Transform(myVector);

//
// Transform an array of vectors.
//
Vector[] myVectorArray = new Vector[]
{new Vector(15, 25), new Vector(30,35)};

// myVectorArray[0] becomes (450, 650).
// myVectorArray[1] becomes (675, 1000).
myMatrix.Transform(myVectorArray);

}
```

#### .NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0

#### .NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

#### Reference

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