AGIS
1998
14 years 4 days ago
1998
With the development of modern cities, 3-D spatial information systems (SIS) are increasingly required for spatial planning, communication systems and other applications. The geom...
IDEAS
1999
IEEE
14 years 4 months ago
1999
IEEE
The diversity of spatial information systems promotes the need to integrate heterogeneous spatial or geographic information systems (GIS) in a cooperative environment. This paper ...