<Canvas
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">

  <Line Stroke="Black" X1="10" Y1="10" X2="100" Y2="300" />
  
  <Line Stroke="Red" X1="10" Y1="10" X2="10" Y2="300">

    <Line.RenderTransform>
      <TransformGroup>
      </TransformGroup>
    </Line.RenderTransform>

  </Line>

</Canvas>
