Analysis of a Freeform Shape Modelling Process
نویسندگان
چکیده
In this paper, we introduce and analyse a Computer-Aided Industrial Design (CAID) process. For each step performed in the shape modelling process, durations, involved entities, concerned parameters and constraints, initial and final states of the shapes were recorded. The modelling session consisted of three main phases and lasted 2710 seconds. The results show that transformation tools are more used than generation tools. In addition, the usage of entities already in the scene is also preferred over the creation of new entities. Modelling activities using curves or surfaces are equally preferred. However, curves dominated in the first part of the session, whereas surfaces are more involved in the last part of the session.
منابع مشابه
Parameter-driven freeform deformations
High-level parameters offer user an easy and intuitive tool to modify an existing model. In this paper, an approach of deforming freeform shapes using intrinsic parameters is proposed, where those parameters were not part of the model. Instead the parameters are introduced by user at the time he/she needs them. To achieve this, different from existing freeform deformation methods, a deformable ...
متن کاملA freeform shape optimization of complex structures represented by arbitrary polygonal or polyhedral meshes
In this paper we propose a new scheme for freeform shape optimization on arbitrary polygonal or polyhedral meshes. The approach consists of three main steps: (1) surface partitioning of polygonal meshes into different patches; (2) a new freeform perturbation scheme of using the Cox–de Boor basis function over arbitrary polygonal meshes, which supports multi-resolution shape optimization and doe...
متن کاملOptimization of Freeform Building Shape Using Genetic Algorithm
This paper proposes an optimization algorithm for envelope design during an early stage freeform building design. This study performs geometric modeling using a three-dimensional (3D) design tool called Rhino, which designs examples of freeform buildings with a parametric design method, i.e., a 3D design technique for freeform building design. This method proceeds by mesh generation for the fre...
متن کاملFrequency-based Operators for Freeform Feature Shape Reuse
Freeform feature shape reuse is an important issue in industrial design supporting. In this paper, the frequencybased operators for freeform feature shape reuse are discussed. Unlike the shape modeling approaches in the spatial domain that manipulate shapes by controlling the low-level geometric elements, the frequency-based operators work in the 2D frequency domain, and control the shape by ma...
متن کاملParameterization of Freeform Features
Freeform features can be regarded as key elements of shape modeling. Commonly, features are defined, controlled and computed using parameters. In this paper we propose a feature formulation strictly based on the parameterization, as a mapping from an arbitrary set to some domain of interest. This formalism accommodates many of the common representation forms and in addition allows 1) the unifor...
متن کامل