Nevron Open Vision Documentation
Funnel Series

In order to show data in the funnel series you need to add an instance on the NFunnelSeries class to the funnel chart series collection. The following image shows a funnel chart:

Only the first funnel series in the collection is regarded.
Creating a Funnel Series

The following code snippet create a new funnel series with sample data and adds it to a funnel chart:

C#
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NFunnelSeries funnelSeries = new NFunnelSeries();
funnelChart.Series.Add(funnelSeries);

funnelSeries.DataPoints.Add(new NFunnelDataPoint(20.0, "Awareness"));
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(10.0, "First Hear"));
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(15.0, "Further Learn"));
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(7.0, "Liking"));
funnelSeries.DataPoints.Add(new NFunnelDataPoint(28.0, "Decision"));

This will create a standard funnel chart. You can control the funnel neck width and height using the NeckWidthPercent and NeckHeightPercent properties.
Creating a Scatter Funnel Series

In some cases you may want to have a funnel where each slice has different user specified width. In such cases you need to pass an additional x value to the funnel data point and set the UseXValues property of the NFunnelSeries object to true:

C#
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NFunnelSeries funnelSeries = new NFunnelSeries();
funnelChart.Series.Add(funnelSeries);
funnelSeries.UseXValues =
true;
funnelSeries.Shape =
ENFunnelShape.Rectangle;
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(20.0, 20.0, "Awareness"));
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(10.0, 10.0, "First Hear"));
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(15.0, 15.0, "Further Learn"));
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(7.0, 7.0, "Liking"));
funnelSeries.DataPoints.Add(
new NFunnelDataPoint(28.0, 28.0, "Decision"));

Controlling the Funnel Shape

The funnel series has a property called Shape which allows you to modify the shape of individual funnel slices. Possible values for this property are ENFunnelShape.Rectangle and ENFunnelShape.Trapezoid. The following code snippet modifies the funnel shape to rectangle:

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funnelSeries.Shape = ENFunnelShape.Rectangle;
Controlling the Funnel Label Mode

Each funnel data point can display an associated data label. The position of the data label depends on the value of the funnel series LabelMode property. The following table lists the available options:

ENFunnelLabelMode Description
Left Funnel labels are aligned to the left funnel rim. If labels are overlapping the rules applied in the Series Label Layout topic apply.
Center Funnel labels are placed at the center. If labels are overlapping the rules applied in the Series Label Layout topic apply.
Right Funnel labels are placed at the right funnel rim. If labels are overlapping the rules applied in the Series Label Layout topic apply.
LeftAligned Funnel labels are placed at the left side. Label overlapping is resolved in the same way as pie spider labels.
RightAligned Funnel labels are placed at the right side. Label overlapping is resolved in the same way as pie spider labels.
When the funnel labels mode is set to LeftAligned or RightAligned you can control the distance of the labels from the leftmost or rightmost funnel side using the LabelArrowLength property of the funnel series object.

 

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