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MatrixTransform Class

Creates an arbitrary affine matrix transformation that is used to manipulate objects or coordinate systems in a 2-D plane. 

Namespace:  System.Windows.Media
Assembly:  PresentationCore (in PresentationCore.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

[<Sealed>]
type MatrixTransform =  
    class 
        inherit Transform 
    end
<MatrixTransform .../>
<object property="m11, m12, m21, m22, offsetX, offsetY"/>
- or -
<object property="Identity"/>

XAML Values

m11

System.Double

The value at position (1, 1) of the transformation Matrix.

m12

System.Double

The value at position (1, 2) of the transformation Matrix.

m21

System.Double

The value at position (2, 1) of the transformation Matrix.

m22

System.Double

The value at position (2, 2) of the transformation Matrix.

offsetX

System.Double

The value at position (3, 1) of the transformation Matrix.

offsetY

System.Double

The value at position (3, 2) of the transformation Matrix.

The MatrixTransform type exposes the following members.

  NameDescription
Public methodMatrixTransform()Initializes a new instance of the MatrixTransform class.
Public methodMatrixTransform(Matrix)Initializes a new instance of the MatrixTransform class with the specified transformation matrix.
Public methodMatrixTransform(Double, Double, Double, Double, Double, Double)Initializes a new instance of the MatrixTransform class with the specified transformation matrix values.
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  NameDescription
Public propertyCanFreezeGets a value that indicates whether the object can be made unmodifiable. (Inherited from Freezable.)
Public propertyDependencyObjectTypeGets the DependencyObjectType that wraps the CLR type of this instance.  (Inherited from DependencyObject.)
Public propertyDispatcherGets the Dispatcher this DispatcherObject is associated with. (Inherited from DispatcherObject.)
Public propertyHasAnimatedPropertiesGets a value that indicates whether one or more AnimationClock objects is associated with any of this object's dependency properties. (Inherited from Animatable.)
Public propertyInverseGets the inverse of this transform, if it exists. (Inherited from Transform.)
Public propertyIsFrozenGets a value that indicates whether the object is currently modifiable. (Inherited from Freezable.)
Public propertyIsSealedGets a value that indicates whether this instance is currently sealed (read-only). (Inherited from DependencyObject.)
Public propertyMatrixGets or sets the Matrix structure that defines this transformation.
Public propertyValueGets the Matrix that represents this MatrixTransform. (Overrides Transform.Value.)
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  NameDescription
Public methodApplyAnimationClock(DependencyProperty, AnimationClock)Applies an AnimationClock to the specified DependencyProperty. If the property is already animated, the SnapshotAndReplace handoff behavior is used. (Inherited from Animatable.)
Public methodApplyAnimationClock(DependencyProperty, AnimationClock, HandoffBehavior)Applies an AnimationClock to the specified DependencyProperty. If the property is already animated, the specified HandoffBehavior is used. (Inherited from Animatable.)
Public methodBeginAnimation(DependencyProperty, AnimationTimeline)Applies an animation to the specified DependencyProperty. The animation is started when the next frame is rendered. If the specified property is already animated, the SnapshotAndReplace handoff behavior is used. (Inherited from Animatable.)
Public methodBeginAnimation(DependencyProperty, AnimationTimeline, HandoffBehavior)Applies an animation to the specified DependencyProperty. The animation is started when the next frame is rendered. If the specified property is already animated, the specified HandoffBehavior is used. (Inherited from Animatable.)
Public methodCheckAccessDetermines whether the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject.)
Public methodClearValue(DependencyProperty)Clears the local value of a property. The property to be cleared is specified by a DependencyProperty identifier. (Inherited from DependencyObject.)
Public methodClearValue(DependencyPropertyKey)Clears the local value of a read-only property. The property to be cleared is specified by a DependencyPropertyKey. (Inherited from DependencyObject.)
Public methodCloneCreates a modifiable copy of this MatrixTransform by making deep copies of its values.
Public methodCloneCurrentValueCreates a modifiable copy of this MatrixTransform object by making deep copies of its values. This method does not copy resource references, data bindings, or animations, although it does copy their current values.
Public methodCoerceValueCoerces the value of the specified dependency property. This is accomplished by invoking any CoerceValueCallback function specified in property metadata for the dependency property as it exists on the calling DependencyObject. (Inherited from DependencyObject.)
Public methodEqualsDetermines whether a provided DependencyObject is equivalent to the current DependencyObject. (Inherited from DependencyObject.)
Public methodFreeze()Makes the current object unmodifiable and sets its IsFrozen property to true. (Inherited from Freezable.)
Public methodGetAnimationBaseValueReturns the non-animated value of the specified DependencyProperty. (Inherited from Animatable.)
Public methodGetAsFrozenCreates a frozen copy of the Freezable, using base (non-animated) property values. Because the copy is frozen, any frozen sub-objects are copied by reference. (Inherited from Freezable.)
Public methodGetCurrentValueAsFrozenCreates a frozen copy of the Freezable using current property values. Because the copy is frozen, any frozen sub-objects are copied by reference. (Inherited from Freezable.)
Public methodGetHashCodeGets a hash code for this DependencyObject. (Inherited from DependencyObject.)
Public methodGetLocalValueEnumeratorCreates a specialized enumerator for determining which dependency properties have locally set values on this DependencyObject. (Inherited from DependencyObject.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodGetValueReturns the current effective value of a dependency property on this instance of a DependencyObject. (Inherited from DependencyObject.)
Public methodInvalidatePropertyRe-evaluates the effective value for the specified dependency property (Inherited from DependencyObject.)
Public methodReadLocalValueReturns the local value of a dependency property, if it exists. (Inherited from DependencyObject.)
Public methodSetCurrentValueSets the value of a dependency property without changing its value source. (Inherited from DependencyObject.)
Public methodSetValue(DependencyProperty, Object)Sets the local value of a dependency property, specified by its dependency property identifier. (Inherited from DependencyObject.)
Public methodSetValue(DependencyPropertyKey, Object)Sets the local value of a read-only dependency property, specified by the DependencyPropertyKey identifier of the dependency property. (Inherited from DependencyObject.)
Protected methodShouldSerializePropertyReturns a value that indicates whether serialization processes should serialize the value for the provided dependency property. (Inherited from DependencyObject.)
Public methodToString()Creates a string representation of this GeneralTransform. (Inherited from GeneralTransform.)
Public methodToString(IFormatProvider)Creates a string representation of this instance, based on the passed IFormatProvider parameter. (Inherited from GeneralTransform.)
Public methodTransformTransforms the specified point and returns the result. (Inherited from GeneralTransform.)
Public methodTransformBoundsTransforms the specified bounding box and returns an axis-aligned bounding box that is exactly large enough to contain it. (Inherited from Transform.)
Public methodTryTransformAttempts to transform the specified point and returns a value that indicates whether the transformation was successful. (Inherited from Transform.)
Public methodVerifyAccessEnforces that the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject.)
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  NameDescription
Public eventChangedOccurs when the Freezable or an object it contains is modified. (Inherited from Freezable.)
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  NameDescription
Public fieldStatic memberMatrixPropertyIdentifies the Matrix dependency property.
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  NameDescription
Explicit interface implemetationPrivate methodIFormattable.ToStringFormats the value of the current instance using the specified format. (Inherited from GeneralTransform.)
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Use the MatrixTransform class to create custom transformations that are not provided by the RotateTransform, SkewTransform, ScaleTransform, or TranslateTransform classes.

A 3x3 matrix is used for transformations in a 2-D x-y plane. You can multiply affine matrix transformations to form linear transformations, such as rotation and skew (shear) that are followed by translation.

An affine matrix transformation has its final column equal to (0, 0, 1); therefore, you only have to specify the members in the first two columns.

A Windows Presentation Foundation (WPF) Matrix has the following structure:

The members in the last row, OffsetX and OffsetY, represent translation values.

Methods and properties usually specify the transformation matrix as a vector that has only six members; the members are as follows:

    (M11, M12, M21, M22, OffsetX, OffsetY)

This example shows how to use a MatrixTransform to translate (move) the position, stretch, and skew of a Button.

NoteNote

Use the MatrixTransform class to create custom transformations that are not provided by the RotateTransform, SkewTransform, ScaleTransform, or TranslateTransform classes.

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" >
  <StackPanel Margin="20">
    <Canvas HorizontalAlignment="Left" Width="340" Height="240" >

      <Button MinWidth="100">Click
        <Button.RenderTransform>
          <MatrixTransform x:Name="myMatrixTransform">
            <MatrixTransform.Matrix >

              <!-- OffsetX and OffsetY specify the position of the button,
              M11 stretches it, and M12 skews it. -->
              <Matrix OffsetX="10" OffsetY="100" M11="3" M12="2"/>
            </MatrixTransform.Matrix>
          </MatrixTransform>
        </Button.RenderTransform>
      </Button>
    </Canvas>
  </StackPanel>
</Page>

More Code

How to: Animate a Matrix by Using Key FramesThis example shows how to animate the Matrix property of a MatrixTransform by using key frames.
How to: Animate an Object Along a Path (Matrix Animation)This example shows how to use the MatrixAnimationUsingPath class to animate an object along a path that is defined by a PathGeometry.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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