<Window x:Class="Workspace.DockExample"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Workspace" Width="640" Height="480">
<StackPanel>
<Rectangle Width="175" Height="90" Stroke="Black">
<Rectangle.Fill>
<ImageBrush ImageSource="c:\image.jpg" Viewport="0,0,0.5,0.5" TileMode="Tile" />
</Rectangle.Fill>
</Rectangle>
<Rectangle Width="175" Height="90" Stroke="Black">
<Rectangle.Fill>
<ImageBrush ImageSource="c:\image.jpg" Viewport="0,0,0.5,0.5" TileMode="Tile">
<ImageBrush.RelativeTransform>
<RotateTransform CenterX="0.5" CenterY="0.5" Angle="45" />
</ImageBrush.RelativeTransform>
</ImageBrush>
</Rectangle.Fill>
</Rectangle>
<Rectangle Width="175" Height="90" Stroke="Black">
<Rectangle.Fill>
<ImageBrush ImageSource="c:\image.jpg" Viewport="0,0,0.5,0.5" TileMode="Tile">
<ImageBrush.Transform>
<RotateTransform CenterX="87.5" CenterY="45" Angle="45" />
</ImageBrush.Transform>
</ImageBrush>
</Rectangle.Fill>
</Rectangle>
</StackPanel>
</Window>