Special issue on geometric modelling and simulation

Special issue on geometric constraints and reasoning

This special issue in CGTA follows the fourth edition of the special track: Geometric Constraints and Reasoning, in the 24th Annual ACM Symposium on Applied Computing, which took place in Honolulu, Hawaii, USA, March 9–12, 2009. Geometric Constraints and Reasoning is devoted to the recent trends in the domain of geometric constraint solving (GCS) and automated, or computer aided, deduction in g...

Special Issue on Driving Simulation

These last years have witnessed the advent of several high performance driving simulators at automotive companies and universities all over the world as well as a large use of low-cost simulators for a growing number of human factors, vehicle engineering, road traffic, and training applications. The rendering capabilities and applicability of driving simulators thus became a crucial issue both ...

Special Issue on Robust Geometric Algorithms and their Implementations

The robust implementation of geometric algorithms is highly nontrivial. There are several reasons for this: theoretical algorithms (i.e., algorithms on paper) traditionally assume error-free real computations, at constant time cost per operation, and data in general position. All three assumptions do not hold in the real world (i.e., algorithms on silicon). So implementors face the tasks of (1)...

Special issue: Uncertainties in geometric design

In computing, it is a basic fact that, owing to the finiteness in representation, errors occur and they accumulate. In geometric computing, the 'logic' for performing set operations is not necessarily the classical binary one. How, then, does one ensure a robust process, if not error-free results? Physically, uncertainty in geometric data manifests itself in metrological studies in the small, a...

Special Issue