Kepler-Release/Venus/Framework/UICore/Control/SusceptorControl.xaml

<UserControl x:Class="Aitex.Core.UI.Control.SusceptorControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             d:DesignHeight="540" d:DesignWidth="540" x:Name="susceptorControl" Background="Transparent" >

    <Viewbox Width="{Binding ElementName=susceptorControl, Path=Width}" Height="{Binding ElementName=susceptorControl, Path=Height}" Stretch="Fill">
        <Canvas x:Name="layout"/>
    </Viewbox>
</UserControl>