XAML in a Nutshell

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Chapter 11: Animations and Transformations

This is the Title of the Book, eMatter Edition

Copyright © 2008 O’Reilly & Associates, Inc. All rights reserved.

The

Rect3D value may be specified using abbreviated markup syntax or explicitly

declared as a

Rect3D element.

Attributes

KeySpline (required) (SplineRect3DKeyFrame only)

This

KeySpline describes how the key frame will be altered during animation.

KeyTime (required)

This attribute specifies when, relative to the animation, this key frame takes place:

• A time period specified in hours:minutes:seconds.

•

Uniform: The Duration will be split evenly among all key frames.

• Paced: The Duration will be split among key frames in a way that ensures the

speed of the animation remains relatively constant.

• A percentage of the total duration.

Value (required)

This

Rect3D describes the destination value of the key frame.

RectKeyFrame

Hierarchy: DependencyObject ➝ Freezable

RectPointFrame is the base class for three types of Rect key frames: discrete, linear, and

spline. Each of the three subclasses of

RectKeyFrame represents a key frame with a

distinct interpolation technique, indicated by its name:

<LinearRectKeyFrame

KeyTime="0:0:10|Uniform|Paced|30%"

Value="1,1 10 10" />

<DiscreteRectKeyFrame

KeyTime="0:0:10|Uniform|Paced|30%"

Value="1,1 10 10" />

<SplineRectKeyFrame

KeyTime="0:0:10|Uniform|Paced|30%"

Value="1,1 10 10" >

<SplineRectKeyFrame.KeySpline>

<KeySpline ControlPoint1="5,5" ControlPoint2="10,10" />

</SplineRectKeyFrame.KeySpline>

</SplineRectKeyFrame>

All three RectKeyFrame subclasses determine when (KeyTime) the frame will reach the

designated value (

Value). KeyTime is specified in terms of hours:minutes:seconds. The

Value attribute of all RectKeyFrame subclasses is a Rect.