Feature-preserving Deformation for Assembly Models
نویسنده
چکیده
This paper proposes a framework for interactively deforming assembly models with multiple disconnected meshes. When the user selects a mesh model and deforms it, other mesh models are simultaneously and consistently deformed while the shapes of the form-features are preserved. The method combines surface-based and volume-based deformation. Each model is encoded using differential properties for the surface-based deformation and mean value coordinates for the volume-based deformation. Since the deformation methods are interrelated through linear systems, the deformation of one model can be interactively propagated to the other models. The implemented system can achieve a real-time response for the deformation of assembly models.
منابع مشابه
Hierarchical feature subspace for structure-preserving deformation
This paper aims to propose a new framework for structure-preserving deformation, which is interactive, stable, and easy to use. The deformation is characterized by a nonlinear optimization problem that retains features and structures while allowing user-input external forces. The proposed framework consists of four major steps: feature analysis, ghost construction, energy optimization, and reco...
متن کاملInteractive mesh deformation using equality-constrained least squares
Mesh deformation techniques that preserve the differential properties have been intensively studied. In this paper, we propose an equality-constrained least squares approach for stably deforming mesh models while approximately preserving mean curvature normals and strictly satisfying other constraints such as positional constraints. We solve the combination of hard and soft constraints by const...
متن کاملThe Influence of Effective Factors on Mechanical Stress on Fingertips During Snap-fit Assembly
Objectives: Nowadays, Snap-fits are used in the automotive industry as a proper alternative for mechanical joints, cabling joints, and car interior lining joints. Due to the special form of these joints, which are assembled manually, the contact area between Snap-fits and the worker’s fingertips can be too small. This can cause skin pain on the worker’s fingertips. Therefore, ...
متن کاملInteractive Deformation of 3D Mesh Models
This paper proposes a framework for interactively deforming 3D mesh models. 3D mesh models are often used in finite element analysis, but existing surface-based deformation methods fail to deform volumetric elements consistently. In the method proposed here, vertices in a 3D mesh model are classified into boundary vertices and interior vertices. Boundary vertices are treated in the same way as ...
متن کاملSemantic Preserving Data Reduction using Artificial Immune Systems
Artificial Immune Systems (AIS) can be defined as soft computing systems inspired by immune system of vertebrates. Immune system is an adaptive pattern recognition system. AIS have been used in pattern recognition, machine learning, optimization and clustering. Feature reduction refers to the problem of selecting those input features that are most predictive of a given outcome; a problem encoun...
متن کامل