Overview on Geo Services and IGS 

Geo services comprise geocoding, routing, and map display.

Geocoding transforms an address into a “world coordinate” (so-called geocode).

Routing is the calculation procedure used to determine a route between a starting point and a destination, via intermediate stops if desired. The results of this calculation are the route, the distance, and the navigation instructions.

 

To be able to use geo services in a Web Dynpro application, you must provide the IGS (Internet Graphics Service) and a GIS server (Graphical Information System).

The GIS server is a non-SAP server that provides geographical data required for geocodings, route calculations, and generation of maps.

The IGS provides an interface to the external GIS server. This allows the IGS to offer maps and data for route planning and geocoding. In addition, you can add images such as icons or presentation graphics to the maps, which the IGS retrieves from the GIS server.

 

 

As you can see from figure 1, Web Dynpro uses XML and the IGSViaJava library to send a request to the IGS. The IGS transforms this request and retrieves the data from the external GIS, using its interface.

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To continue creating the example application "Using Geo Services“, read: Import Project Template.