title: Dynamic Data Display Isoline white edges
body: <p>I've got a graph that looks like this:
  <img src="https://i.stack.imgur.com/vkffX.png" alt="Graph"></p>
  
  <p>And I want it to look like this:
  <img src="https://i.stack.imgur.com/q94j5.png" alt="enter image description here"></p>
  
  <p>I've been using Dynamic Data Display's Isoline library for this.</p>
  
  <p>The issue is that in the upper-right corner, the area is colored, even though all values in that area are 0 (hence why the isolines stop).
  Does anyone know if there is a way I can adapt my .xaml file so that area will just display a white background color?</p>
  
  <p>Thank you in advance,</p>
  
  <p>CX</p>
  
  <p>My current .xaml file looks like this:</p>
  
  <pre><code>&lt;Window x:Class="IntensityChart.Window1"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:d3="http://research.microsoft.com/DynamicDataDisplay/1.0"
      Title="DynamicDataDisplay Sample - Intensity Chart" WindowState="Maximized"
      Icon="{x:Static d3:D3IconHelper.DynamicDataDisplayWhiteIcon}"&gt;
  &lt;Grid&gt;
      &lt;Grid.ColumnDefinitions&gt;
          &lt;ColumnDefinition Width="Auto"/&gt;
          &lt;ColumnDefinition Width="*"/&gt;
      &lt;/Grid.ColumnDefinitions&gt;
      &lt;Grid.RowDefinitions&gt;
          &lt;RowDefinition Height="*"/&gt;
          &lt;RowDefinition Height="Auto"/&gt;
      &lt;/Grid.RowDefinitions&gt;
  
      &lt;d3:ChartPlotter Name="plotter" Grid.Row="0" Grid.Column="1"&gt;
          &lt;d3:ViewportHostPanel&gt;
              &lt;Image Name="image" d3:ViewportPanel.ViewportBounds="0,0,2,1.5" Stretch="Fill"/&gt;
          &lt;/d3:ViewportHostPanel&gt;
  
          &lt;d3:IsolineGraph Name="isolineGraph"/&gt;
          &lt;d3:IsolineTrackingGraph Name="trackingGraph"/&gt;
          &lt;d3:CursorCoordinateGraph/&gt;
  
          &lt;d3:CursorCoordinateGraph/&gt;
          &lt;d3:AxisCursorGraph/&gt;
      &lt;/d3:ChartPlotter&gt;
  
  &lt;/Grid&gt;
  </code></pre>
  
  <p></p>