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26-18 Web User Interface Developers Guide for Oracle Application Development Framework 27 Using ADF Geographic Map Components 27-1 27 Using ADF Geographic Map Components This chapter describes how to use an ADF geographic map component with databound themes to display data, and provides the options for map customization. This chapter includes the following sections: ■ Section 27.1, Introduction to Geographic Maps ■ Section 27.2, Understanding Data Requirements for Geographic Maps ■ Section 27.3, Customizing Map Size, Zoom Control, and Selection Area Totals ■ Section 27.4, Customizing Map Themes ■ Section 27.5, Adding a Toolbar to a Map For information about the data binding of ADF geographic map themes, see the Creating Databound ADF Geographic Maps section in the Oracle Fusion Middleware Fusion Developers Guide for Oracle Application Development Framework.

27.1 Introduction to Geographic Maps

A geographic map component is a data visualization component that provides the functionality of Oracle Spatial within the framework. This component lets users represent business data on a geographic map and superimpose multiple layers of information known as themes on a single map. When you create a map, you are prompted to select a base map that an administrator has already configured using the Map Builder tool of Oracle Spatial. During configuration, the map administrator defines the zoom levels that the map supports. These levels also determine the zoom capability of the ADF geographic map. Administrators also have the option of creating predefined map themes using the Map Builder tool. For example, a predefined theme might use specific colors to identify regions. In the ADF geographic map component, you can select such a predefined map theme, but you cannot modify it because this theme is part of the base map. The base map becomes the background on which you build interactive layers of information in JDeveloper using the ADF geographic map component. The ADF geographic map requires that you define at least one layer but you can create as many layers as you wish.

27.1.1 Available Map Themes

The ADF geographic map provides a variety of map themes, each of which must be bound to a data collection. Figure 27–1 shows a map with several themes. The following kinds of map themes are available: