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Silverlight 5 Essential Training

Simulating physics with animation easings


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Silverlight 5 Essential Training

with Walt Ritscher

Video: Simulating physics with animation easings

Easing is a term for modifying an animation so that the rate of change is not uniform. In other words, it's a way to introduce acceleration or deceleration into your animation. A simple easing might start out slow and accelerate to the end. A more elaborate easing might stimulate the rate of a bouncing ball: fast, then slow to a stop, and speed up again, and repeat in a diminishing fashion. For this demonstration, I am going to use Expression Blend and a project called Animation Easings. My main UI in this application consists of a Start button and several ellipses.
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  1. 1m 41s
    1. Welcome
      53s
    2. Using the exercise files
      48s
  2. 35m 0s
    1. Overview of Silverlight
      3m 29s
    2. Setting up a developer computer
      2m 46s
    3. Installing the Silverlight Toolkit
      2m 21s
    4. Exploring the toolkit samples
      2m 35s
    5. Using Visual Studio 2010 to create a Silverlight project
      5m 10s
    6. Using Expression Blend to create a Silverlight project
      3m 13s
    7. Getting to know the Visual Studio interface
      8m 15s
    8. Working in the Expression Blend interface
      7m 11s
  3. 29m 46s
    1. Understanding the Visual Studio project structure
      3m 38s
    2. Creating a Silverlight page
      3m 17s
    3. Compiling your first application
      5m 0s
    4. Using other assemblies in an application
      5m 45s
    5. Deploying a Silverlight application
      3m 43s
    6. Understanding the startup process for an application
      3m 13s
    7. Understanding how users get Silverlight on their computers
      5m 10s
  4. 16m 59s
    1. Exploring the relationship between XAML and .NET
      3m 57s
    2. Using C#
      7m 16s
    3. Exploring the code-behind file
      5m 46s
  5. 43m 22s
    1. Working with XAML elements and Property attributes
      4m 56s
    2. Investigating XAML namespaces
      7m 31s
    3. Converting XAML properties with TypeConverters
      5m 1s
    4. Working with Property elements
      4m 24s
    5. Assigning runtime data with XAML markup extensions
      4m 21s
    6. Digging into the dependency property system
      6m 12s
    7. Creating a custom dependency property
      4m 42s
    8. Understanding attached properties
      6m 15s
  6. 9m 35s
    1. Debugging your code
      5m 17s
    2. Special Silverlight debugging techniques
      4m 18s
  7. 36m 0s
    1. Understanding layout
      4m 55s
    2. Using DockPanel and WrapPanel
      4m 2s
    3. Exploring sophisticated layouts with the Grid
      6m 40s
    4. Absolute positioning with the Canvas panel
      5m 20s
    5. Scrolling content with the ScrollViewer
      3m 28s
    6. Adjusting content alignment, margins, and sizing
      5m 6s
    7. Using the TabControl
      2m 17s
    8. Manipulating elements with transforms
      4m 12s
  8. 20m 32s
    1. Painting the user interface (UI) with SolidColorBrush
      6m 7s
    2. Getting colorful with gradient brushes
      3m 15s
    3. Decorating elements with ImageBrush
      4m 56s
    4. Creating effects with VideoBrush
      6m 14s
  9. 25m 42s
    1. Understanding routed events
      3m 12s
    2. Wiring up event handlers in Silverlight
      6m 4s
    3. Understanding event bubbling
      4m 39s
    4. Exploring mouse events
      7m 43s
    5. Exploring keyboard events
      4m 4s
  10. 32m 31s
    1. Displaying text on the screen
      3m 24s
    2. Gathering text input from the user
      5m 30s
    3. Showing complex text with RichTextBox
      6m 7s
    4. Understanding text overflow and text linking
      3m 14s
    5. Searching content with the AutoComplete type-ahead control
      6m 45s
    6. Using and embedding Silverlight fonts
      7m 31s
  11. 26m 47s
    1. Understanding content controls
      5m 7s
    2. Understanding button controls
      6m 16s
    3. Using the BusyIndicator
      4m 40s
    4. Showing tooltips
      4m 34s
    5. Changing content size with ViewBox
      1m 39s
    6. Exploring more controls
      4m 31s
  12. 55m 36s
    1. Connecting elements with binding
      9m 54s
    2. Using business data in a binding
      9m 21s
    3. Listing data with ItemsControls
      6m 39s
    4. Digging into the DataGrid
      8m 28s
    5. Using the DataForm
      3m 49s
    6. Storing data on the client
      7m 10s
    7. Debugging XAML bindings
      5m 41s
    8. Charting data
      4m 34s
  13. 24m 36s
    1. Creating an Out-of-Browser (OOB) application
      6m 16s
    2. Controlling aspects of an OOB application
      2m 49s
    3. Alerting the user with notification windows
      7m 13s
    4. Hosting HTML content in Silverlight applications
      8m 18s
  14. 30m 2s
    1. Exploring Silverlight trust levels
      3m 51s
    2. Creating an elevated trust application
      5m 57s
    3. Reaping the benefits of XAP signing
      6m 5s
    4. Making cross-domain calls
      5m 1s
    5. Getting started with COM Interop using the Speech API
      4m 21s
    6. Using COM Interop to interact with Microsoft Office
      4m 47s
  15. 16m 33s
    1. Showing child windows
      3m 48s
    2. Using a child window as a dialog window
      5m 7s
    3. Creating native windows
      2m 53s
    4. Maximizing a window with full screen mode
      4m 45s
  16. 13m 20s
    1. Dynamically loading UI content with user controls
      4m 46s
    2. Using the Navigation Framework
      8m 34s
  17. 9m 28s
    1. Using resource files
      3m 53s
    2. Using images in an application
      5m 35s
  18. 16m 32s
    1. Playing audio
      4m 27s
    2. Playing sound effects
      5m 4s
    3. Viewing video content with MediaElement
      4m 58s
    4. Changing video playback speed with TrickPlay
      2m 3s
  19. 14m 40s
    1. Capturing video with a web camera
      4m 16s
    2. Working with a microphone
      3m 47s
    3. Creating print output
      6m 37s
  20. 22m 35s
    1. Understanding Silverlight animations
      4m 35s
    2. Creating animations
      7m 52s
    3. Controlling animations
      4m 18s
    4. Simulating physics with animation easings
      5m 50s
  21. 27m 47s
    1. Placing XAML resources within a FrameworkElement
      6m 47s
    2. Centralizing settings in styles
      4m 8s
    3. Creating an alternate control UI with ControlTemplates
      6m 29s
    4. Dressing up your data with DataTemplates
      4m 33s
    5. Explaining the VisualStateManager: a simple way to manage control states
      5m 50s
  22. 10m 55s
    1. Handling global errors in a Silverlight application
      5m 46s
    2. Showing an application loading screen
      5m 9s
  23. 10m 48s
    1. Integrating with XNA
      7m 40s
    2. Exploring data analysis with PivotViewer
      3m 8s
  24. 1m 6s
    1. Goodbye
      1m 6s

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Silverlight 5 Essential Training
8h 51m Beginner Mar 27, 2012

Viewers: in countries Watching now:

Microsoft Silverlight 5 is a rich application framework for creating high-performance, cross-platform desktop and mobile applications. In this course, author Walt Ritscher demonstrates how to build a variety of applications in Silverlight, with particular focus on building compelling business applications and delivering premium video and audio content. Developers will work with the C# programming language and Visual Studio Professional, as well as Expression Blend, a tool that simplifies creation of the interactive user interfaces expected in modern-day applications.

Topics include:
  • Installing the toolkit and setting up the development environment
  • Using Expression Blend vs. Visual Studio 2010
  • Creating a Silverlight page
  • Compiling an application
  • Exploring the relationship between XAML and .NET
  • Using C#
  • Working with XAML
  • Digging into the Dependency Property System
  • Deploying and debugging code
  • Creating sophisticated layouts with panel elements
  • Managing Visual State with Visual State Manager
  • Transforming the user interface (UI) with templates
  • Understanding the event model
  • Working with text
  • Using business data in a binding
  • Creating an out-of-browser (OOB) application
  • Exploring trust levels
  • Playing audio and video
  • Handling errors
  • Exploring animations
  • Working with application windows
  • Integration with XNA
Subject:
Developer
Software:
Silverlight Visual Studio
Author:
Walt Ritscher

Simulating physics with animation easings

Easing is a term for modifying an animation so that the rate of change is not uniform. In other words, it's a way to introduce acceleration or deceleration into your animation. A simple easing might start out slow and accelerate to the end. A more elaborate easing might stimulate the rate of a bouncing ball: fast, then slow to a stop, and speed up again, and repeat in a diminishing fashion. For this demonstration, I am going to use Expression Blend and a project called Animation Easings. My main UI in this application consists of a Start button and several ellipses.

What I want to do is move these ellipses down the screen and simulate different easing functions. To do that, of course I need a Storyboard. Click on this Plus symbol on my Objects and Timeline to create a new storyboard, and I will call this one EasingStoryboard. You see the red recording border show up. I am going to add a keyframe by clicking here. First, I need to select my items so I will select my ellipses. Then I will click on the Record Keyframe at the 0 timeline, move to the 2- second mark. Then I will apply a Translate Transform to move these down the screen.

I will do that by going to my Property pane, scrolling down to the Transform section, and changing the Translate Transform Y value. I will change that to 200 pixels. And then I am going to stop recording and run the animation. So they all move at a uniform speed. The next thing I am going to do is start changing the easings.

I will select a keyframe. Notice the keyframes over here and notice the red dots on my ellipses? That signifies that there is an animation on at least one dependency property on that type. So if I choose the GreenEllipse and open this expander, you will see that I am animating a RenderTransform on the TranslateY. Now, when I click on the TranslateY here, you will notice on the right-hand side of the screen, I end up with a new UI. I have an easing section over here.

Let's look at that again. If I select the Ellipse, I get properties for the ellipse. If I select the TranslateY Transfrom, then I get the Easing property. I am going to start by looking at the KeySpline, and it's telling me that I needed to have selected the last keyframe. That makes sense. I will go over here and choose just this last keyframe right here, and now you see how that UI changed over there on the right? This allows me to dial my own custom speed into the animation. You grab this yellow dot and you move it around and choose the speed.

Let's see what this one looks like. Let's run the animation. So it starts fast on this curve and then slows down as it gets near the end. What do you think will happen if I edit my curve like this? I'll run the animation. Fast at the beginning, fast at the end, and slow in the middle. You can have hours of fun playing with this curve. There is also some pre-built easings available.

For this example, I will use the PurpleEllipse, choose the last keyframe for the PurpleEllipse, and I'll move to my EasingFunction and look at this dropdown. Here are the different mathematical easing formulas that Microsoft has included. I will start by looking at this one called Back. Now, let's run the animation. This is on the PurpleEllipse now, remember? So that goes the opposite direction to start the animation and then changes its direction and goes back. If I do a back out, then I am going to run the animation. It goes further than it's supposed to and then comes back in.

And if I choose this one, the InOut Back function, it will go both directions: out and then in. You can have endless hours of fun playing with this. I will work with the orange one next. It says orange here where it says yellow over here. I will work with the OrangeEllipse. Let's look at a Bounce. Now, I am going to make this look like a ball, so I will use the Bounce Out. That looks natural. I can control the number of bounces with this number, and I can control the bounciness of the ball with this number.

This one is going to get crazy. You can also create your own custom easings. If you notice in my project, I have this class called FractalEasing.cs. This is a .NET type that derives from EasingFunctionBase, and then what happens is I override a function called EaseInCore, and then I return a number based on the normalizedTime. So as the animation is progressing, I provide the animation curve here. This is real simple one. Let me show you how we work with this. Go back to my MainPage. I will choose my BlueEllipse.

I'll compile my application, Ctrl+Shift+B. And then at the bottom of the list is my CustomEasing function. Click on it and run the app. It kind of just goes off the screen. It's like a helium balloon or a rocket liftoff. Let's watch that again. Watch the BlueEllispe. And it's gone. I love the new Easing functions in Silverlight. They really bring a snap to your animation, and Expression Blend makes them easy to add to your timeline.

Find answers to the most frequently asked questions about Silverlight 5 Essential Training.


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Q: I'm trying to access a Silverlight 3D application template, [cid:image001.png@01CD0E7D.3E07ECA0]. I have already installed the Silverlight 5 SDK and my Visual Studio 2010 is professional. Could you please help me?
A: You must install XNA Studio in order to use the new Silverlight 3D templates. Otherwise the new templates will not show up. Download it at http://www.microsoft.com/download/en/details.aspx?id=23714.

For other Silverlight downloads (the toolkit, developer runtime, etc.), see http://www.silverlight.net/downloads.
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