Correlation heat map for windows presentation foundation

Question

Does anyone knows any good tool for drawing correlation heat maps for WPF?

Example based on comments:

Original image source

Answer 1

The free WPF Toolkit has a TreeMap. You can define it in XAML as follows:

<vis:TreeMap ItemsSource="{Binding Path=HeatMap.Sectors}"
              Interpolators="{StaticResource colourInterpolator}">
  <vis:TreeMap.ItemDefinition>
    <vis:TreeMapItemDefinition ValueBinding="{Binding MarketCap}">
      <DataTemplate>
        <Grid>
          <Border x:Name="Border"
                  BorderBrush="Black"
                  BorderThickness="1"
                  Margin="1"
                  Opacity="0.5">                      
          </Border>
          <TextBlock Text="{Binding Name}"
                     TextWrapping="Wrap"
                     FontSize="20"
                     Margin="5"
                     VerticalAlignment="Center"
                     HorizontalAlignment="Center"/>
        </Grid>
      </DataTemplate>
    </vis:TreeMapItemDefinition>
  </vis:TreeMap.ItemDefinition>
</vis:TreeMap>

The above XAML is a snippet from an application I have written that shows financial HeatMaps. You can see a Silverlight version running here:

http://www.scottlogic.co.uk/blog/colin/xaml-finance/

(Just hit the 'heatmap' button)

Answer 2

If you are looking for a commercial product, I would suggest you look at the Telerik controls. Telerik has excellent controls for WPF. Included in the long list is a Heat Map control. Here is a link to the site where they list the heat map feature:

http://www.telerik.com/products/wpf/map.aspx

If you are looking to build something, here are a couple blog articles that lay out how to do it (with source provided):

http://www.garrettgirod.com/?p=111

http://www.nickdarnell.com/?p=833