Transform Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Defines functionality that enables transformations in a two-dimensional plane.

Inheritance Hierarchy

System..::.Object
System.Windows..::.DependencyObject
System.Windows.Media..::.GeneralTransform
System.Windows.Media..::.Transform
System.Windows.Media..::.CompositeTransform
System.Windows.Media..::.MatrixTransform
System.Windows.Media..::.RotateTransform
System.Windows.Media..::.ScaleTransform
System.Windows.Media..::.SkewTransform
System.Windows.Media..::.TransformGroup
System.Windows.Media..::.TranslateTransform

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

Syntax

Public MustInherit Class Transform _
    Inherits GeneralTransform
public abstract class Transform : GeneralTransform

The Transform type exposes the following members.

Properties

Name Description
Dispatcher Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Inverse Gets the inverse of this transform, if it exists. (Overrides GeneralTransform..::.Inverse.)

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Methods

Name Description
CheckAccess Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
ClearValue Clears the local value of a dependency property. (Inherited from DependencyObject.)
Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
GetAnimationBaseValue Returns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
GetType Gets the Type of the current instance. (Inherited from Object.)
GetValue Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
ReadLocalValue Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
SetValue Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
ToString Returns a string that represents the current object. (Inherited from Object.)
Transform Transforms the specified point and returns the result. (Inherited from GeneralTransform.)
TransformBounds Transforms the specified bounding box and returns an axis-aligned bounding box that is exactly large enough to contain it. (Overrides GeneralTransform..::.TransformBounds(Rect).)
TryTransform Attempts to transform the specified point and returns a value that indicates whether the transformation was successful. (Overrides GeneralTransform..::.TryTransform(Point, Point%).)

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Remarks

Transformations include rotation (RotateTransform), scale (ScaleTransform), skew (SkewTransform), and translation (TranslateTransform). This class hierarchy differs from the Matrix structure because it is a class and it supports animation and enumeration semantics.

For XAML syntaxes that take a Transform, you need to specify a nonabstract derived type of Transform as an object element. Typically, this is one of the Windows Phone-defined classes: MatrixTransform, RotateTransform, ScaleTransform, SkewTransform, TransformGroup, and TranslateTransform. See the syntax sections on the appropriate class.

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

A two-dimensional x-y plane uses a 3x3 matrix for transformations. You can multiply affine transformation matrices to form linear transformations, such as rotation and skew (shear) that are followed by translation.

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

You cannot extract the matrix-specific information from the nonmatrix transformations. However you can adjust the nonmatrix transformations with their specific properties, or replace a transformation with a matrix transformation at run time.

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Platforms

Windows Phone

Thread Safety

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

See Also

Reference

System.Windows.Media Namespace