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Is there any example of how to modify the intersection point template of where a verticallineannotation intersects say a fastlinerenderableseries?

The default is simply the value with a gray background.
In the “Series Vertical Slices” example I can see it includes the series name, but I don’t see anything in the “Source Code” that even asks for it.

Thanks for any help!

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Best Answer
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Hi there,

Actually I just discovered that we don’t have any articles on styling the VerticalLineAnnotation when used in the VerticalSliceModifier funnily enough … however VerticalSliceModifier does inherit VerticalSliceModifierBase and TooltipModifierBase, which are base classes for the RolloverModifier.

And we do have articles on how to style the rollover:

  1. Adding TimeSeries Tooltips with the RolloverModifier. Scroll down to Styling the RolloverModifier
  2. Also of interest is Adding RolloverMarkers for the RolloverModifier
  3. … and SeriesInfo – The Series ViewModel for Legends, Tooltips, Rollovers
  4. … and Adding Data-Point Tooltips with the TooltipModifier

So, putting this together, I believe you can style the markers and tooltips of the VerticaSliceModifier as follows:

   <!-- In resources -->
    <s:ColorToBrushConverter x:Key="ColorToBrushConverter"/>

    <!-- The Tooltip Control Template, Binds to SeriesInfo -->
    <ControlTemplate x:Key="RolloverLabelTemplate" TargetType="s:TemplatableControl">
        <Grid>
            <Ellipse Fill="#77FFFFFF"
             Stroke="{Binding SeriesColor, Converter={StaticResource ColorToBrushConverter}}"
             StrokeThickness="2" />
            <StackPanel Margin="20">
                <TextBlock FontSize="12"
                   FontWeight="Bold"
                   Foreground="{Binding SeriesColor, Converter={StaticResource ColorToBrushConverter}}"
                   Text="{Binding SeriesName}" />
                <TextBlock FontSize="11"
                   Foreground="{Binding SeriesColor, Converter={StaticResource ColorToBrushConverter}}"
                   Text="{Binding Value}" />
            </StackPanel>
        </Grid>
    </ControlTemplate>


   <!-- In VerticalSliceModifeir declaration -->
   <s:VerticalSliceModifier Name="sliceModifier" TooltipLabelTemplate="{StaticResource RolloverLabelTemplate}">

Result (attached image)

*Beautiful … Artisitic … *

Best regards,
Andrew

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