Transform 类

定义

定义实现二维平面中的转换的功能。Defines functionality that enables transformations in a 2-D plane. 转换包括旋转 (RotateTransform)、缩放 (ScaleTransform)、倾斜 (SkewTransform) 和平移 (TranslateTransform)。Transformations include rotation (RotateTransform), scale (ScaleTransform), skew (SkewTransform), and translation (TranslateTransform). 此类层次结构不同于 Matrix 结构,因为它是一个类,而且支持动画和枚举语义。This class hierarchy differs from the Matrix structure because it is a class and it supports animation and enumeration semantics.

public ref class Transform abstract : System::Windows::Media::GeneralTransform
[System.ComponentModel.TypeConverter(typeof(System.Windows.Media.TransformConverter))]
[System.Windows.Localizability(System.Windows.LocalizationCategory.None, Readability=System.Windows.Readability.Unreadable)]
public abstract class Transform : System.Windows.Media.GeneralTransform
type Transform = class
    inherit GeneralTransform
    interface DUCE.IResource
Public MustInherit Class Transform
Inherits GeneralTransform
继承
派生
属性

注解

RotateTransform ScaleTransform SkewTransform使用类可创建不由、、和TranslateTransform类提供的自定义转换。 MatrixTransformUse the MatrixTransform class to create custom transformations that are not provided by the RotateTransform, ScaleTransform, SkewTransform, and TranslateTransform classes.

二维2-D X y 平面使用3x3 矩阵进行变换。A 二维2-D x-y plane uses a 3x3 matrix for transformations. 您可以将仿射转换矩阵相乘,以形成线性转换,如旋转和倾斜(切变),后跟平移。You can multiply affine transformation matrices to form linear transformations, such as rotation and skew (shear) that are followed by translation.

仿射转换矩阵的最终列等于(0,0,1);因此,您只需指定前两列中的成员。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.

Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) 具有Matrix以下结构:A Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) Matrix has the following structure:

M11 M12 00
M21 M22 00
OffsetX OffsetY 11

最后一行OffsetX OffsetY中的成员表示转换值。The members in the last row, OffsetX and OffsetY, represent translation values.

方法和属性通常将变换矩阵指定为只有六个成员的矢量;如下所示:Methods and properties usually specify the transformation matrix as a vector that has only six members; they are as follows:

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

属性

CanFreeze

获取一个值,该值指示是否可将对象变为不可修改。Gets a value that indicates whether the object can be made unmodifiable.

(继承自 Freezable)
DependencyObjectType

获取对此实例的 CLRCLR 类型进行包装的 DependencyObjectTypeGets the DependencyObjectType that wraps the CLRCLR type of this instance.

(继承自 DependencyObject)
Dispatcher

获取与此 Dispatcher 关联的 DispatcherObjectGets the Dispatcher this DispatcherObject is associated with.

(继承自 DispatcherObject)
HasAnimatedProperties

获取一个值,该值指示一个或多个 AnimationClock 对象是否与此对象的任何依赖项属性相关联。Gets a value that indicates whether one or more AnimationClock objects is associated with any of this object's dependency properties.

(继承自 Animatable)
Identity

获取一个恒等变换。Gets an identity transform.

Inverse

获取此变换的逆变换(如果存在)。Gets the inverse of this transform, if it exists.

IsFrozen

获取一个值,该值指示对象当前是否可修改。Gets a value that indicates whether the object is currently modifiable.

(继承自 Freezable)
IsSealed

获取一个值,该值指示此实例当前是否为密封的(只读)。Gets a value that indicates whether this instance is currently sealed (read-only).

(继承自 DependencyObject)
Value

Matrix 对象的形式获取当前变换。Gets the current transformation as a Matrix object.

方法

ApplyAnimationClock(DependencyProperty, AnimationClock)

AnimationClock 应用到指定的 DependencyPropertyApplies an AnimationClock to the specified DependencyProperty. 如果该属性已进行动画处理,则使用 SnapshotAndReplace 切换行为。If the property is already animated, the SnapshotAndReplace handoff behavior is used.

(继承自 Animatable)
ApplyAnimationClock(DependencyProperty, AnimationClock, HandoffBehavior)

AnimationClock 应用到指定的 DependencyPropertyApplies an AnimationClock to the specified DependencyProperty. 如果该属性已进行动画处理,则使用指定的 HandoffBehaviorIf the property is already animated, the specified HandoffBehavior is used.

(继承自 Animatable)
BeginAnimation(DependencyProperty, AnimationTimeline)

将动画应用于指定 DependencyPropertyApplies an animation to the specified DependencyProperty. 动画会在呈现下一帧时启动。The animation is started when the next frame is rendered. 如果指定属性已进行动画处理,则使用 SnapshotAndReplace 切换行为。If the specified property is already animated, the SnapshotAndReplace handoff behavior is used.

(继承自 Animatable)
BeginAnimation(DependencyProperty, AnimationTimeline, HandoffBehavior)

将动画应用于指定 DependencyPropertyApplies an animation to the specified DependencyProperty. 动画会在呈现下一帧时启动。The animation is started when the next frame is rendered. 如果指定的属性已进行动画处理,则使用指定的 HandoffBehaviorIf the specified property is already animated, the specified HandoffBehavior is used.

(继承自 Animatable)
CheckAccess()

确定调用线程是否可以访问此 DispatcherObjectDetermines whether the calling thread has access to this DispatcherObject.

(继承自 DispatcherObject)
ClearValue(DependencyProperty)

清除属性的本地值。Clears the local value of a property. 要清除的属性由 DependencyProperty 标识符指定。The property to be cleared is specified by a DependencyProperty identifier.

(继承自 DependencyObject)
ClearValue(DependencyPropertyKey)

清除只读属性的本地值。Clears the local value of a read-only property. 要清除的属性由 DependencyPropertyKey 指定。The property to be cleared is specified by a DependencyPropertyKey.

(继承自 DependencyObject)
Clone()

通过深层复制其值创建此 Transform 的可修改副本。Creates a modifiable copy of this Transform by making deep copies of its values.

CloneCore(Freezable)

使用基(未经过动画处理的)属性值使该实例成为指定 Freezable 的克隆(深层复制)。Makes the instance a clone (deep copy) of the specified Freezable using base (non-animated) property values.

(继承自 Freezable)
CloneCurrentValue()

通过制作此 Transform 对象的值的深层副本来创建此对象的可修改复本。Creates a modifiable clone of this Transform object by making deep copies of its values. 此方法不复制资源引用、数据绑定或动画,但复制其当前值。This method does not copy resource references, data bindings, or animations, although it does copy their current values.

CloneCurrentValueCore(Freezable)

使用当前属性值使该实例成为指定 Freezable 的可修改克隆(深层复制)。Makes the instance a modifiable clone (deep copy) of the specified Freezable using current property values.

(继承自 Freezable)
CoerceValue(DependencyProperty)

对指定依赖属性的值进行强制。Coerces the value of the specified dependency property. 通过对调用方 DependencyObject 上存在的依赖属性的属性元数据中所指定的任何 CoerceValueCallback 函数进行调用来完成此操作。This is accomplished by invoking any CoerceValueCallback function specified in property metadata for the dependency property as it exists on the calling DependencyObject.

(继承自 DependencyObject)
CreateInstance()

初始化 Freezable 类的新实例。Initializes a new instance of the Freezable class.

(继承自 Freezable)
CreateInstanceCore()

在派生类中实现时,创建 Freezable 派生类的新实例。When implemented in a derived class, creates a new instance of the Freezable derived class.

(继承自 Freezable)
Equals(Object)

确定提供的 DependencyObject 是否等效于当前 DependencyObjectDetermines whether a provided DependencyObject is equivalent to the current DependencyObject.

(继承自 DependencyObject)
Freeze()

使当前对象不可修改,并且将其 IsFrozen 属性设置为 trueMakes the current object unmodifiable and sets its IsFrozen property to true.

(继承自 Freezable)
FreezeCore(Boolean)

使此 Animatable 对象成为不可修改的对象,或确定是否可使其成为不可修改的对象。Makes this Animatable object unmodifiable or determines whether it can be made unmodifiable.

(继承自 Animatable)
GetAnimationBaseValue(DependencyProperty)

返回指定的 DependencyProperty 的未经过动画处理的值。Returns the non-animated value of the specified DependencyProperty.

(继承自 Animatable)
GetAsFrozen()

使用基(未经过动画处理的)属性值创建 Freezable 的冻结副本。Creates a frozen copy of the Freezable, using base (non-animated) property values. 由于副本已冻结,因此将通过引用复制任何冻结的子对象。Because the copy is frozen, any frozen sub-objects are copied by reference.

(继承自 Freezable)
GetAsFrozenCore(Freezable)

让该实例成为指定的 Freezable 的冻结克隆,前者使用基(非动画的)属性值。Makes the instance a frozen clone of the specified Freezable using base (non-animated) property values.

(继承自 Freezable)
GetCurrentValueAsFrozen()

使用当前属性值创建 Freezable 的冻结副本。Creates a frozen copy of the Freezable using current property values. 由于副本已冻结,因此将通过引用复制任何冻结的子对象。Because the copy is frozen, any frozen sub-objects are copied by reference.

(继承自 Freezable)
GetCurrentValueAsFrozenCore(Freezable)

使当前实例成为指定的 Freezable 的冻结复本。Makes the current instance a frozen clone of the specified Freezable. 如果对象具有动画依赖属性,则复制其当前的动画值。If the object has animated dependency properties, their current animated values are copied.

(继承自 Freezable)
GetHashCode()

获取此 DependencyObject 的哈希代码。Gets a hash code for this DependencyObject.

(继承自 DependencyObject)
GetLocalValueEnumerator()

创建一个专用的枚举数,用于确定哪些依赖项属性在此 DependencyObject 上具有以本地方式设置的值。Creates a specialized enumerator for determining which dependency properties have locally set values on this DependencyObject.

(继承自 DependencyObject)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
GetValue(DependencyProperty)

DependencyObject 的此实例返回依赖属性的当前有效值。Returns the current effective value of a dependency property on this instance of a DependencyObject.

(继承自 DependencyObject)
InvalidateProperty(DependencyProperty)

重新评估指定依赖属性的有效值。Re-evaluates the effective value for the specified dependency property.

(继承自 DependencyObject)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
OnChanged()

修改当前 Freezable 对象时调用。Called when the current Freezable object is modified.

(继承自 Freezable)
OnFreezablePropertyChanged(DependencyObject, DependencyObject)

确保为刚刚设置的 DependencyObjectType 数据成员建立适当的上下文指针。Ensures that appropriate context pointers are established for a DependencyObjectType data member that has just been set.

(继承自 Freezable)
OnFreezablePropertyChanged(DependencyObject, DependencyObject, DependencyProperty)

此成员支持 Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) 基础结构,但不能在代码中直接使用。This member supports the Windows Presentation Foundation (WPF)Windows Presentation Foundation (WPF) infrastructure and is not intended to be used directly from your code.

(继承自 Freezable)
OnPropertyChanged(DependencyPropertyChangedEventArgs)

重写 OnPropertyChanged(DependencyPropertyChangedEventArgs)DependencyObject 实现,以同时调用任何响应类型 Freezable 不断变化的依赖属性的 Changed 处理程序。Overrides the DependencyObject implementation of OnPropertyChanged(DependencyPropertyChangedEventArgs) to also invoke any Changed handlers in response to a changing dependency property of type Freezable.

(继承自 Freezable)
Parse(String)

通过变换矩阵的指定字符串表示形式创建一个新的 TransformCreates a new Transform from the specified string representation of a transformation matrix.

ReadLocalValue(DependencyProperty)

如果存在,则返回依赖属性的本地值。Returns the local value of a dependency property, if it exists.

(继承自 DependencyObject)
ReadPreamble()

确保正在从有效的线程访问 FreezableEnsures that the Freezable is being accessed from a valid thread. Freezable 的继承者必须在任何 API 一开始读取不属于依赖项对象的数据成员时调用此方法。Inheritors of Freezable must call this method at the beginning of any API that reads data members that are not dependency properties.

(继承自 Freezable)
SetCurrentValue(DependencyProperty, Object)

设置依赖属性的值而不更改其值源。Sets the value of a dependency property without changing its value source.

(继承自 DependencyObject)
SetValue(DependencyProperty, Object)

设置依赖属性的本地值,该值由其依赖属性标识符指定。Sets the local value of a dependency property, specified by its dependency property identifier.

(继承自 DependencyObject)
SetValue(DependencyPropertyKey, Object)

设置一个只读依赖属性的本地值,该值由依赖属性的 DependencyPropertyKey 标识符指定。Sets the local value of a read-only dependency property, specified by the DependencyPropertyKey identifier of the dependency property.

(继承自 DependencyObject)
ShouldSerializeProperty(DependencyProperty)

返回一个值,该值指示序列化进程是否应序列化所提供的依赖属性的值。Returns a value that indicates whether serialization processes should serialize the value for the provided dependency property.

(继承自 DependencyObject)
ToString()

创建此 GeneralTransform 的字符串表示形式。Creates a string representation of this GeneralTransform.

(继承自 GeneralTransform)
ToString(IFormatProvider)

基于传递的 IFormatProvider 参数创建此实例的字符串表示形式。Creates a string representation of this instance, based on the passed IFormatProvider parameter.

(继承自 GeneralTransform)
Transform(Point)

变换指定的点并返回结果。Transforms the specified point and returns the result.

(继承自 GeneralTransform)
TransformBounds(Rect)

变换指定的边界框,并返回一个正好能容纳它的轴对齐的边界框。Transforms the specified bounding box and returns an axis-aligned bounding box that is exactly large enough to contain it.

TryTransform(Point, Point)

尝试变换指定的点,并返回指示变换是否成功的值。Attempts to transform the specified point and returns a value that indicates whether the transformation was successful.

VerifyAccess()

强制调用线程具有此 DispatcherObject 的访问权限。Enforces that the calling thread has access to this DispatcherObject.

(继承自 DispatcherObject)
WritePostscript()

引发 FreezableChanged 事件并调用其 OnChanged() 方法。Raises the Changed event for the Freezable and invokes its OnChanged() method. Freezable 派生的类应在修改的类成员不存储为依赖属性的任何 API 的末尾调用此方法。Classes that derive from Freezable should call this method at the end of any API that modifies class members that are not stored as dependency properties.

(继承自 Freezable)
WritePreamble()

验证 Freezable 是否未被冻结,并且是否正在从有效的线程上下文中访问它。Verifies that the Freezable is not frozen and that it is being accessed from a valid threading context. Freezable 的继承项应当在任何 API 一开始写入不属于依赖项属性的数据成员时调用此方法。Freezable inheritors should call this method at the beginning of any API that writes to data members that are not dependency properties.

(继承自 Freezable)

事件

Changed

在修改 Freezable 或其包含的对象时发生。Occurs when the Freezable or an object it contains is modified.

(继承自 Freezable)

显式界面实现

IFormattable.ToString(String, IFormatProvider)

使用指定的格式格式化当前实例的值。Formats the value of the current instance using the specified format.

(继承自 GeneralTransform)

适用于