Idiomatic way to draw a curve over a bar series chart

Question

What I have is a BarSeries to display a histogram (rotated by 90 degrees, compared to the common way to draw histograms).

Putting aside the question if that's the best way to go about drawing a histogram, using the classes in System.Windows.Controls.DataVisualization (although comments are welcome), what would be the best way to draw a curve over such a chart?

This curve (just a dotted line gaussian in my case) must be probably scaled and positioned inside the "coordinate system" of the chart. (The scare quotes are intended to indicate that with a bar series chart, there isn't a actual two-dimensional coordinate system, but adjusting bar dimensions and gaps I think it could effectively be turned into one.)

I've done a bit of research and started played around a bit with AdornerDecorators providing me with a AdornerLayer to draw on, but there are also StackedPanels and potentially other options, so if anyone knows of a good way to implement what I need, that'd probably save me a lot of trial-and-error.

Answer 1

Just add both a ColumnSeries as well as a LineSeries inside the same Chart element. The following snippet also contains the LayoutTransform which rotates the whole thing.

<Grid>
  <Chart>
    <Chart.LayoutTransform>
      <RotateTransform CenterX="0.5" CenterY="0.5" Angle="90"/>
    </Chart.LayoutTransform>

    <ColumnSeries></ColumnSeries>
    <LineSeries></LineSeries>
  </Chart>
</Grid>