An abstract formalism for the representation of spatial knowledge is suggested. The focus is on the development of a comprehensive representation scheme for pictorial information in which the knowledge model of the given world has a high degree of perceptual similarity to a typical user's view of the same world. The model that has been developed uses the object-oriented method of knowledge representation. The intention is that with this model any user of the system will be equipped to depict pictorial information easily and will be able to portray spatial as well as conceptual abstractions, generalizations, and rules at various levels. >
Read full abstract