| A generic database model that includes spatial information is seen as a set of relations (entities R) of the form (TA1,... , TAn; SA), where TAi are thematic attributes and SA is the spatial or geometric attribute. Each relation is characterized by a type T (R) = [n,m], with n the dimension of the thematic part and m the dimension of the space |
Última modificación: Tuesday, 8 de November de 2005, 07:43