Geographical Information Systems

GeoBI Architecture Based on Free Software 269

An interesting feature provided by GeoOLAP is the possibility of

combining two spatial hierarchies, as shown in Fig. 15. In this example, to

make the display simpler we chose only the total population of the Alajuela

province and combined two spatial hierarchies: administrative and health

divisions. Since this province belongs to four different Health regions, the

map in the Fig. 15 includes this division.

Fig. 15. Combining two spatial hierarchies of administrative and health divisions for the

Alajuela province.

Color image of this figure appears in the color plate section at the end of the book. ...