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In recent years 3D geo-information has become an important research
area due to the increased complexity of tasks in many
geo-scientific applications, such as sustainable urban planning and
development, civil engineering, risk and disaster management and
environmental monitoring. Moreover, a paradigm of cross-application
merging and integrating of 3D data is observed. The problems and
challenges facing today's 3D software, generally
application-oriented, focus almost exclusively on 3D data
transportability issues - the ability to use data originally
developed in one modelling/visualisation system in other and vice
versa. Tools for elaborated 3D analysis, simulation and prediction
are either missing or, when available, dedicated to specific tasks.
In order to respond to this increased demand, a new type of system
has to be developed. A fully developed 3D geo-information system
should be able to manage 3D geometry and topology, to integrate 3D
geometry and thematic information, to analyze both spatial and
topological relationships, and to present the data in a suitable
form. In addition to the simple geometry types like point line and
polygon, a large variety of parametric representations, freeform
curves and surfaces or sweep shapes have to be supported.
Approaches for seamless conversion between 3D raster and 3D vector
representations should be available, they should allow analysis of
a representation most suitable for a specific application.
In recent years 3D geo-information has become an important research
area due to the increased complexity of tasks in many
geo-scientific applications, such as sustainable urban planning and
development, civil engineering, risk and disaster management and
environmental monitoring. Moreover, a paradigm of cross-application
merging and integrating of 3D data is observed. The problems and
challenges facing today's 3D software, generally
application-oriented, focus almost exclusively on 3D data
transportability issues - the ability to use data originally
developed in one modelling/visualisation system in other and vice
versa. Tools for elaborated 3D analysis, simulation and prediction
are either missing or, when available, dedicated to specific tasks.
In order to respond to this increased demand, a new type of system
has to be developed. A fully developed 3D geo-information system
should be able to manage 3D geometry and topology, to integrate 3D
geometry and thematic information, to analyze both spatial and
topological relationships, and to present the data in a suitable
form. In addition to the simple geometry types like point line and
polygon, a large variety of parametric representations, freeform
curves and surfaces or sweep shapes have to be supported.
Approaches for seamless conversion between 3D raster and 3D vector
representations should be available, they should allow analysis of
a representation most suitable for a specific application.
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