3D GIS: the state-of-the art abstract

3D GIS: the state-of-the art
An increasing number of applications need
advanced 3D tools for representing and
analysing real world. At present, many software
packages can handle a wide range of spatial
problems. However, is the functional 3D GIS
already a reality? This paper tries to find the
answer by analysing both software available
and efforts of researchers. An overview of
several commercial systems and a 3D case
study provide knowledge about 3D functionality
offered in the market. The most significant
achievements in the 3D research area
concerning 3D structuring and 3D topology
portray the current research status and
delineate new research topics.
Alias abdul rahman