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# Matrix Constructor

Visual Studio 2008

Initializes a new instance of the Matrix structure.

Namespace:  System.Windows.Media
Assembly:  WindowsBase (in WindowsBase.dll)

## Syntax

```public Matrix(
double m11,
double m12,
double m21,
double m22,
double offsetX,
double offsetY
)
```
```You cannot use constructors in XAML.
```

#### 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.

## Examples

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);

}
```

## Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

## Version Information

#### .NET Framework

Supported in: 3.5, 3.0