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Funnel Chart

A Funnel chart displays a single series of data in progressively decreasing or increasing proportions, organized in segments, where each segment represents the value for the particular item from the series. The items' values can also influence the height and the shape of the corresponding segments.

Funnel charts are usually used to represent stages in a sales process (e.g., show the amount of potential revenue for each stage);identify a potential problematic areas in any company's process; visualize website visitors trends, etc. This chart type is well suited for displaying several values.

The Funnel series has several properties that control the way a chart's segments are rendered.

  • SegmentSpacing - The property specifies the space between the different segments of the funnel chart in pixels.

  • DynamicHeightEnabled - A Boolean property that indicates whether all the segments will share the same size (when DynamicHeightEnabled="false") or the height of each segment is determined according to its value (when DynamicHeightEnabled="true").Default value is true.

  • NeckRatio - The property specifies the ratio between the top and the bottom bases of the whole funnel series. The property can take effect only if the DynamicSlopeEnabled property is set to "false" (see the next line).

  • DynamicSlopeEnabled - A Boolean property that indicates whether the form of each segment will be based on the ratio between the value from the current and the next segment. Default value is false.

note

If the DynamicSlopeEnabled property is set to true , NeckRatio property is neglected.

The code in Example 1 will show you how to build a FunnelSeries that has its NeckRatio and SegmentSpacing properties set (Figure 1), while DynamicHeightEnabled is enabled.

The code in Example 2 will show you how to build a FunnelSeries that has its DynamicSlopeEnabled property enabled (Figure 2), while DynamicHeightEnabled is disabled.

Figure 1: Display a Funnel chart that has its bottom base four times smaller than its top base and five pixels space between all segments. The code in Example 1 shows this setup.

htmlchart-funnel-simple-example 1

Example 1: Creating a FunnelSeries that has its NeckRatio and SegmentSpacing properties set while DynamicHeightEnabled is enabled.

<telerik:RadHtmlChart runat="server" ID="FunnelChart1" Width="450" Height="400" Skin="Silk">
    <PlotArea>
        <Series>
            <telerik:FunnelSeries DynamicSlopeEnabled="false" DynamicHeightEnabled="true" SegmentSpacing="5" NeckRatio="0.4">
                <SeriesItems>
                    <telerik:FunnelSeriesItem Y="5442" Name="Visited the website" />
                    <telerik:FunnelSeriesItem Y="1519" Name="Watched the demos" />
                    <telerik:FunnelSeriesItem Y="1131" Name="Downloaded a trial" />
                    <telerik:FunnelSeriesItem Y="811" Name="Purchased a license" />
                    <telerik:FunnelSeriesItem Y="704" Name="Renewed a license" />
                </SeriesItems>
            </telerik:FunnelSeries>
        </Series>
    </PlotArea>
    <ChartTitle Text="Website Statistics">
    </ChartTitle>
</telerik:RadHtmlChart>

Figure 2: Illustrates how the widths of the bases for each segment are based on the ratio currentValue/nextValue. The code in Example 2 shows this setup.

htmlchart-funnel-simple-example 2

Example 2: Creating a FunnelSeries that has its DynamicSlopeEnabled property enabled while DynamicHeightEnabled is disabled.

<telerik:RadHtmlChart runat="server" ID="FunnelChart2" Width="450" Height="400" Skin="Silk">
    <PlotArea>
        <Series>
            <telerik:FunnelSeries DynamicHeightEnabled="false" DynamicSlopeEnabled="true">
                <SeriesItems>
                    <telerik:FunnelSeriesItem Y="5442" Name="Visited the website" />
                    <telerik:FunnelSeriesItem Y="1519" Name="Watched the demos" />
                    <telerik:FunnelSeriesItem Y="1131" Name="Downloaded a trial" />
                    <telerik:FunnelSeriesItem Y="811" Name="Purchased a license" />
                    <telerik:FunnelSeriesItem Y="704" Name="Renewed a license" />
                </SeriesItems>
            </telerik:FunnelSeries>
        </Series>
    </PlotArea>
    <ChartTitle Text="Website Statistics">
    </ChartTitle>
</telerik:RadHtmlChart>

See Also