Rendering a filled envelope (upper/lower bounds) around a LineSeries

[DavidStania]

Hello LiveCharts2 Community,

I’m currently evaluating a visualization scenario and I’m not sure whether I’m overlooking an intended feature or heading in the wrong architectural direction.

I have a standard LineSeries (time-based process values).
What I would like to achieve is the following:

Behind that existing line curve I want to display something like an envelope band (upper limit + lower limit).
In other words: a tolerance corridor around the measured curve. The important part is not the lines themselves — I specifically want the area between the two limits to be visually highlighted (e.g., semi-transparent colored background).

Conceptually:

• 1 measured value curve (LineSeries)
• 1 upper boundary
• 1 lower boundary
• the area between upper and lower boundary should be filled

My question:

Does LiveCharts2 provide a native way to render such a band/envelope behind a LineSeries (similar to tolerance bands, confidence intervals, or SPC control limits)?

Or is the correct approach to:

• create two additional series (upper + lower)
• and then simulate the filled region using stacked/area series or overlapping charts?

I would prefer avoiding the workaround with multiple charts placed above/below each other just to color the region between the curves.

If this is supported, I’d appreciate a hint which series type or geometry I should look into (AreaSeries? StepArea? custom geometry?).

Thanks in advance!

Best regards

[beto-rodriguez]

Hello

This is currently not supported out of the box 😞