Introducting the chart web item SAP BI

One of the last two Web items that we have yet to cover is the Chart Web item. This is a very powerful component of the overall structure of a good, dynamic Web report that can be either used as a standalone or within a dashboard. Chart Web items are definitely part of the basic architecture, and once you work with them, you will be able to develop the core objects of a corporate Web report or dashboard. If you’ve worked with the Excel Chart functions in the past, you’ll find that you can transfer that knowledge directly to this Chart process within the BEx Web items. So, you may find that the configuration of the Chart Web item is easy to pick up and use immediately. As we go through the functions and configuration of the Chart Web item, keep in mind that no matter whether you choose the WAD or the BOBJ toolsets for BI reporting, you more than likely will work with these same functions, because several of the reporting frontends that BOBJ offers also use this functionality—maybe not exactly as it works with the Excel functions, but very close.

The Chart Web item is the cornerstone of about 99 percent of all Web reports and dashboards. Just based on the underlying concepts of a dashboard, we need to have good charts to make that information available and apparent. The Chart Web item allows data to be displayed graphically in various charts, such as column, profile, waterfall, and line charts. Using the Chart Web item, you can display data graphically in your Web application. You’ll encounter numerous parameters as we go through the configuration of the Chart Web item and based on the specific type of chart that we pick, these parameters will change, but some are standard settings. These parameters are shown in the following illustration.

Introducting the chart web item

Table lists and describes the standard parameters that we can set within the Chart Web item itself, arranged according to the various parameter groupings.

Web Item Parameters for the Chart Web Item

Web Item Parameters for the Chart Web ItemWeb Item Parameters for the Chart Web ItemWeb Item Parameters for the Chart Web Item

The texts, such as chart titles and chart subtitles, as well as the titles and units of the axes, are all language-dependent. You can enter the texts in the Chart Designer or in the Web Application Designer using the text input dialog box for the relevant parameters.

2.Automatic Axis Labeling
For basic charts, you can choose to label the chart axes automatically by activating the attribute Automatic Axis Labeling for Simple Charts (AUTOMATIC_DESCRIPTION) in the WAD. For this to work consistently, three prerequisites must be met: 1) you have selected a chart type (under Edit Chart) of Column, Bar, Line, or Profile; 2) the data provider on which the chart is based contains only one key figure used in a structure; and 3) there are no additional structures. Using the Automatic Axis Labeling for Simple Charts function has the following effect:

  • The name of the (only) key figure is displayed on the Y axis of the chart.
  • The name of the key figure, which is generally displayed on the X axis, in order to enable interaction in the chart, is hidden.
  • The names of the characteristics (or the name of the characteristic if only one is used) are displayed on the X axis.

If the key figures are mixed with characteristics on an axis, the labels are not displayed automatically on the X axis. The preceding descriptions are valid for the bar and profile chart types with swapped X and Y axes.

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