Implementing The Features 3D Multipatch For
The Management Of Territorial Infrastructures
Author(s)
M. Caprioli, B. Figorito, A. Scognamiglio & E. Tarantino
Abstract
The 3D geographic information has now become fundamental in the analysis and
prevention of many environmental problems. For some application fields the
simple 3D data visualization is required, but the 3D complex objects can be
considered as a great aid in territorial analysis connected to specific areas, for
instance the management of territorial infrastructures. In order to meet such
requirements, the latest generation of CAD software has improved the editing
and the photorealistic visualization of objects for mechanics and industrial fields,
whereas GIS software, with the use of georeferenced points, lines and polygons,
had emphatically developed tools for the spatial analysis of objects. So far, with
visualization tools based on simple extrusions, both the technologies do not
permit structuring of 3D topological models and visualization of complex
entities. In literature there are substantially object-oriented and topology-oriented
models. The first addresses the visualization, topology and spatial relations
derived from the object’s structure, while in the second, connected to analysis,
relations are explicitly defined between one object and its neighbours.
With this study the 3D cartographic data processing of road networks for the
realization of a prototype Infrastructure Management System was evaluated, in
order to allow spatial processing in 3D GIS environments, also divulged by web.
Particular attention was paid to the potentiality of the CAD-GIS tandem using
the feature type Multipatch, in order to investigate the real possibility of using
this methodology in many territorial application fields. The Multipatch permits
one to encapsulate complex objects in a compact way and also to add textures on
surfaces, providing a real objects visualization. Such a technique is still not used
because commercial GIS software does not have specific tools to create feature
3D Multipatch. The created objects were next visualized to verify the effective
possibility of thematic queries.
Keywords: GIS 3D, CAD, Multipatch, road infrastructures.
Keywords
GIS 3D, CAD, Multipatch, road infrastructures.
Related Book
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