The research on developing planar curves to produce visually pleasing products (ranges from electric appliances to car body design) and indentifying/modifying planar curves for special purposes namely for railway design, highway design and robot trajectories have been progressing since 1970s. The pattern of research in this field of study has branched to five major groups namely curve synthesis...

Applications in computer graphics and geometric modeling generally require the integration of a variety of curve and surface types into a single system. Object-oriented design offers the opportunity to use the inherent hierarchical structure of curves and surfaces to solve this problem. This paper presents a top down approach to the design of an object-oriented framework for curves and surfaces...

in the hot compression test friction has a detrimental influence on the flow stress through the process and therefore, correcting the deformation curve for real behavior is very important for both researchers and engineers. in this study, a series of compression tests were simulated using abaqus software. in this study, it has been employed the taguchi method to design experiments by the factor...

We describe an elasting matching procedure between plane curves based on computing a minimal deformation cost between the curves. The design of the deformation cost is based on a geodesic distance deened on an innnite dimensional group acting on the curves. The geodesic paths also provide an optimal deformation process, which allows to interpolate between any plane curves.

Vibration suppression can be performed by digital filtering the input to the flexible system. Traditional digital filters have been proved to be efficient for vibration suppression, when they are properly designed. In order to ensure the proper filter design, the Delay-ErrorOrder (DEO) curves are introduced, to be used as a filter design tool. Based on the DEO curves, the vibration suppression ...

Pen-input is not a new means for CAD designers, in particular, in the concept design phase. Meanwhile, B-Splines are well known curve and surface design tool in 3D shape modeling in the final modeling stages in which neat curves and surfaces should be produced. In this paper, an intuitive B-Spline design method that can be used for the CAD systems both in conceptual modeling phase and in later ...