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NIIT4CAD - New Interactive and Innovative Technologies for CAD.

Eurostars Project, 2010/12

The aim of this project was to overcome the traditional approach to surface modeling of current 3D CAD systems by introducing new methodologies and technologies based on subdivision surfaces. These innovations allow designers and engineers to transform quickly and intuitively an idea of shape in a high-quality geometrical model suited for engineering and manufacturing purposes. The NIIT4CAD project involved the Departments of Mathematics and Engineering of the University of Bologna, the CAGD-CGAO group of the University of Valenciennes and Think3.


IT4CAD - Interactive Technologies for Innovative Subdivision-supported Computer Aided Design Systems.

Strategic Project 2007/09, University of Bologna

The IT4CAD objective is to introduce into 3D CAD systems new methods and technologies that allow designers and engineers to quickly and intuitively transform an idea of shape into a geometrical model. The main idea is to combine a geometric engine based on subdivision surfaces with a simple interactive technology that allows an easy design and editing of surfaces in traditional CAD systems. IT4CAD, additionally, focuses on the strenghtening and improvement of the reverse engineering process, a necessary step for obtaining a digital model starting from an exhisting physical object.
Within the IT4CAD project, I was involved in WP1 (GEOMETRIC ENGINE) that has as its objective the introduction of subdivision surfaces into the ThinkDesign CAD system. Subdivision surfaces are defined as the limit of a sequence of successive refinements applied to a starting polygon or mesh and, since no constraints on the shape or topology of the starting mesh are given, they allow for modeling complex objects in a simple and natural way. Thanks to their versatility, subdivision surfaces have been widely used in the digital animation and gaming industry but some unresolved problems still prevent their diffusion and use in commercial systems for geometrical and solid modeling, where NURBS are still the de-facto standard for representation and data exchange. The research activity of WP 1 is oriented toward the definition of a geometric engine integrating subdivision surfaces with all other forms of surface representations already used in the context of CAD.


Research projects funded by INdAM-GNCS

  • MODELLI SPLINE PER LA RICOSTRUZIONE E LA RAPPRESENTAZIONE DI DATI 3D E 4D (2016)
    Spline models for the reconstruction and representation of 3D and 4D data

  • MODELLI MATEMATICI E COMPUTAZIONALI PER LA RAPPRESENTAZIONE DI GEOMETRIE COMPLESSE (2015)
    Mathematical and computational models for the representation of complex geometries

  • THEORETICAL ADVANCES, NEW APPLICATIONS AND COMPUTATIONAL METHODS FOR INTERPOLATION AND APPROXIMATION IN SPACES OF GENERALIZED SPLINES (2014)
    Avanzamenti teorici, nuove applicazioni e metodi computazionali per interpolanti ed approssimanti in spazi di spline generalizzate

  • NEW TRENDS IN SUBDIVISION (2012)

  • SCALAR AND VECTOR SUBDIVISION SCHEMES: THEORY AND APPLICATIONS (2011)