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    copied!<p>Create a grid, with columns and rows equal to the number of pin holes. Place empty columns/rows to account for empty columns/rows in the real device.</p> <p>In each grid cell add a grid. In the inner grids create a 3x3 row/column layout. For the first and last row/column, create * Gridlengths so you can adjust relative sizes between the buffer area and the middle cell.</p> <p>In the middle cell of the inner grids, add a rectangle with an ellipse using a drawing brush (so again, it stays relative).</p> <p>Here's XAML with the first row filled in.</p> <pre><code>&lt;Window x:Class="WpfApplication5.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="579" Width="274"&gt; &lt;Window.Resources&gt; &lt;Style TargetType="{x:Type UserControl}" x:Key="PinHole"&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate&gt; &lt;Grid&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="1*"/&gt; &lt;ColumnDefinition Width="2*"/&gt; &lt;ColumnDefinition Width="1*"/&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition Height="1*"/&gt; &lt;RowDefinition Height="2*"/&gt; &lt;RowDefinition Height="1*"/&gt; &lt;/Grid.RowDefinitions&gt; &lt;Rectangle Grid.Row="1" Grid.Column="1"&gt; &lt;Rectangle.Fill&gt; &lt;DrawingBrush&gt; &lt;DrawingBrush.Drawing&gt; &lt;GeometryDrawing Brush="Black"&gt; &lt;GeometryDrawing.Geometry&gt; &lt;GeometryGroup&gt; &lt;EllipseGeometry Center="1,1" RadiusX="1" RadiusY="1"/&gt; &lt;EllipseGeometry Center="1,1" RadiusX=".5" RadiusY=".5"/&gt; &lt;/GeometryGroup&gt; &lt;/GeometryDrawing.Geometry&gt; &lt;/GeometryDrawing&gt; &lt;/DrawingBrush.Drawing&gt; &lt;/DrawingBrush&gt; &lt;/Rectangle.Fill&gt; &lt;/Rectangle&gt; &lt;/Grid&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/Window.Resources&gt; &lt;Grid&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;ColumnDefinition/&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Grid.RowDefinitions&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;RowDefinition/&gt; &lt;/Grid.RowDefinitions&gt; &lt;UserControl Grid.Column="0" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="1" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="3" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="4" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="5" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="6" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="7" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="9" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="10" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="11" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="12" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="13" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="15" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;UserControl Grid.Column="16" Style="{StaticResource ResourceKey=PinHole}"/&gt; &lt;/Grid&gt; &lt;/Window&gt; </code></pre> <p>Now, when you add ICs, split them up into visual parts (top-left corner, etc), and arrange the parts in the right grid cell locations, together as a unit. </p> <p>In code, you can have an IC unit that you give a top-left cell to, and then the parts of the IC will set their Grid.Row and Grid.Column to the right locations.</p>
 

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