Silverlight 3 3D Effect
With the release of Silverlight 3 which includes support for 3D rendering, here we show an example of using the new Projection property of all UI Elements to apply 3D transformations.
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In the XAML we have a single Image with a PlaneProjection property. We have three buttons, each will rotate the image on a different axis:
<UserControl x:Class="Rotation3D.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Width="800" Height="600">
<Grid x:Name="LayoutRoot" Background="White">
<Grid.Resources>
<Storyboard x:Name="RotateZStoryBoard">
<DoubleAnimation Storyboard.TargetName="rotation" Storyboard.TargetProperty="RotationZ" From="0.0" To="360.0" Duration="0:0:10" RepeatBehavior="Forever" />
</Storyboard>
<Storyboard x:Name="RotateYStoryBoard">
<DoubleAnimation Storyboard.TargetName="rotation" Storyboard.TargetProperty="RotationY" From="0.0" To="360.0" Duration="0:0:10" RepeatBehavior="Forever" />
</Storyboard>
<Storyboard x:Name="RotateXStoryBoard">
<DoubleAnimation Storyboard.TargetName="rotation" Storyboard.TargetProperty="RotationX" From="0.0" To="360.0" Duration="0:0:10" RepeatBehavior="Forever" />
</Storyboard>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="30" />
<RowDefinition />
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Orientation="Horizontal">
<ToggleButton x:Name="rotateX" Width="90" Content="Rotate X-Axis" Click="rotateX_Click" />
<ToggleButton x:Name="rotateY" Width="90" Content="Rotate Y-Axis" Click="rotateY_Click" />
<ToggleButton x:Name="rotateZ" Width="90" Content="Rotate Z-Axis" Click="rotateZ_Click" />
</StackPanel>
<Image Grid.Row="1" Margin="0 50 0 0" Source="Sydney.JPG" Stretch="None">
<Image.Projection>
<PlaneProjection x:Name="rotation" />
</Image.Projection>
</Image>
</Grid>
</UserControl>
The C# simply contains the Click event handlers to begin/stop the rotation animations:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
namespace Rotation3D
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
}
private void rotateX_Click(object sender, RoutedEventArgs e)
{
if (rotateX.IsChecked.Value)
{
RotateXStoryBoard.Begin();
}
else
{
RotateXStoryBoard.Stop();
}
}
private void rotateY_Click(object sender, RoutedEventArgs e)
{
if (rotateY.IsChecked.Value)
{
RotateYStoryBoard.Begin();
}
else
{
RotateYStoryBoard.Stop();
}
}
private void rotateZ_Click(object sender, RoutedEventArgs e)
{
if (rotateZ.IsChecked.Value)
{
RotateZStoryBoard.Begin();
}
else
{
RotateZStoryBoard.Stop();
}
}
}
}
In the code we respond to the mouse events and calculate the position of the zoomed in area. The magnified area is only visible when the mouse button is pressed.
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