How to change the behavior with null values in an igx-data-chart?

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igx-data-chart

Luca Scurati posted over 3 years ago

Hi
I am using an igx-data-chart with line series and i have encountered the following problem.
If a null value is passed, the chart looks like the following image

Is there some way to "skip" the null value and link the previous value with the following one?

I excpet somthing like this:

with the red line that join the previous value with the following one (Obviously with the line that will be of the same color as the relative series)

Thanks in advance

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Offline Michael DiFilippo posted over 3 years ago +1 verified
Hello Luca, Thank you for contacting Infragistics. The line series has an UnknownValuePlotting property that you can set to 'LinearInterpolate' which...view reply »

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Offline Luca Scurati posted over 3 years ago in reply to Michael DiFilippo
Hi Michael, thank you so much. Its' work! I've set the unkwownValuePlotting property in the typescript code like this:

series.unknownValuePlotting = UnknownValuePlotting.LinearInterpolate;

Thank you!
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Verified Answer

Offline Michael DiFilippo posted over 3 years ago

Hello Luca,

Thank you for contacting Infragistics. The line series has an UnknownValuePlotting property that you can set to 'LinearInterpolate' which will provide you with your requirement.

eg.

<igx-line-series
        [xAxis]="xAxis"
        [yAxis]="yAxis"
        valueMemberPath="value"
        unknownValuePlotting="LinearInterpolate">
 </igx-line-series>