Fill area between line series

Hi Marek,

I think what you could probably do is have a single stacked area chart but alter the palette such that the lower series renders with a Transparent area fill and the upper renders normally. 

Note that since we'd be doing stacked mode, you would have to alter your Y axis data points for the upper series so that they are the "difference" between the real upper and lower data points.

Hi,

Thank you for your answer. I've got very few data points (3 for each plot), and interpolate between them using lineKind="Spline". Data points aren't defined for the same 'x' value (user can set according to his data), and this gives me two problems:

1. I would have to calculate spline interpolation by myself to calculate 'difference'

2. AreaSerie with StackKind='Normal' doesn't work properly if datapoints aren't defined for the same 'x' value. The value from upper plot isn't added to interpolated value of lower plot, but to one of the nearby datapoints taken from lower plot.

Hi Marek,

Yes that is true, what I suggested would work nicely, but only if the X data point values line up.

Unfortunately I'm not thinking of any other workarounds other than what you already tried.  Or switching to a line chart (without an area in between being rendered).

What is the name of this sort of chart BTW and in what scenarios is it used instead of just a regular line chart?

Hi,

We have to visualise proper work parameters of a water pump - the parameters should be beetwen this two lines.

If you don't see any better solution, could you implement some property, to force drawing grid on top of series? This way I don't have to use second chart instance. Grid lines drawn on top of plots isn't a problem for me.

Hi Marek,

I will mark down the suggestion, and will mark down the idea of a new "range area" stacking type for the charts.

Hi,

can you give me some timeframe when such functionality will be available?

Hi Marek,

I'm not sure that we would add a grid on top option since that doesn't seem like something that is normally desirable and you can already sort of work around it with what you are doing now.

The range area stacking type is what we would likely do.  We've added it to the list of suggestions for the product, but I don't have a target date at this time.  We have to prioritize it with the other suggestions for the product.  If this is a feature that you absolutely need immediately, then there is always the consulting services option that we could discuss privately if you email our support address.  When customers use consulting services, we make adding the feature our top development priority.