Browsing by Title

Now showing items 2707-2726 of 17315

    • A Constrained Resampling Strategy for Mesh Improvement 

      Abdelkader, Ahmed; Mahmoud, Ahmed H.; Rushdi, Ahmad A.; Mitchell, Scott A.; Owens, John D.; Ebeida, Mohamed S. (The Eurographics Association and John Wiley & Sons Ltd., 2017)
      In many geometry processing applications, it is required to improve an initial mesh in terms of multiple quality objectives. Despite the availability of several mesh generation algorithms with provable guarantees, such ...

    • Constrained Texture Mapping using Image Warping 

      Seo, H.; Cordier, F. (The Eurographics Association and Blackwell Publishing Ltd, 2010)
      We introduce in this paper a new method for smooth foldover-free warping of images. It allows users to specify the constraints in two different ways: positional constraints to constrain the position of points in the image ...

    • Constrained Visualization Using the Shepard Interpolation Family 

      Brodlie, K. W.; Asim, M. R.; Unsworth, K. (The Eurographics Association and Blackwell Publishing Ltd., 2005)
      This paper discusses the problem of visualizing data where there are underlying constraints that must be preserved. For example, we may know that the data are inherently positive. We show how the Modified Quadratic Shepard ...

    • A Constraint Manager to Support Virtual Maintainability 

      Marcelino, Luis; Murray, Norman; Fernando, Terrence (The Eurographics Association, 2022)
      Virtual prototyping tools have already captivated the industry's interest as a viable design tool. One of the key challenges for the research community is to extend the capabilities of Virtual Reality technology beyond its ...

    • Constraint Sets for Topology-changing Finite Element Models 

      Gissler, Marc; Becker, Markus; Teschner, Matthias (The Eurographics Association, 2007)
      We propose constraint sets as an efficient data structure for topology-changing deformable tetrahedral meshes. Using constraint sets, data structure updates in case of topology changes are simple and efficient. The consistency ...

    • Constraint Stroke-Based Oversketching for 3D Curves. 

      Fleisch, Timo; Rechel, Florian; Santos, Pedro; Stork, André (The Eurographics Association, 2004)
      In this paper we present an extended approach for stroke oversketching. The stroke oversketching technique changes a curve by redrawing parts of it. Finding the part to replace and smoothing the transition is done ...

    • Constraint Synthesis for Parametric CAD 

      Mathur, Aman; Zufferey, Damien (The Eurographics Association, 2021)
      Parametric CAD, in conjunction with 3D-printing, is democratizing design and production pipelines. End-users can easily change parameters of publicly available designs, and 3D-print the customized objects. In research and ...

    • Constraint-based Design of B-spline Surfaces from Curves 

      Michalik, P.; Bruderlin, B. D. (The Eurographics Association, 2004)
      In this paper we describe the design of B-spline surface models by means of curves and tangency conditions. The intended application is the conceptual constraint-driven design of surfaces from hand-sketched curves. The ...

    • Constraint-based Fairing of Surface Meshes 

      Hildebrandt, Klaus; Polthier, Konrad (The Eurographics Association, 2007)
      We propose a constraint-based method for the fairing of surface meshes. The main feature of our approach is that the resulting smoothed surface remains within a prescribed distance to the input mesh. For example, specifying ...

    • A Constraint-Based Figure-Maker 

      Kalra, Devendra; Barr, Alan H. (Eurographics Association, 1990)
      In this paper, we describe a new kind of constraint-based figure-maker for parametrically defined curves. Figures are made by defining objects and imposing constraints on their geometric behavior. We present a formulation ...

    • A Constraint-Based Reasoning Framework for Behavioural Animation 

      Mah, Sang; Calvert, Thomas W.; Havens, William (Blackwell Science Ltd and the Eurographics Association, 1994)
      Behaviour is a reflection of a reasoning process that must deal with constraints imposed by an external environment, internal knowledge and physical structure. This paper proposes a framework for behavioural animation that ...

    • Constraint-Based Simulation of Adhesive Contact 

      Gascon, Jorge; Zurdo, Javier S.; Otaduy, Miguel A. (The Eurographics Association, 2010)
      Dynamics with contact are often formulated as a constrained optimization problem. This approach allows handling in an integrated manner both non-penetration and frictional constraints. Following developments in the ...

    • Constraint-Based Surface Processing for Geometric Modeling and Architecture 

      Eigensatz, Michael (Eigensatz, Michael, 2011-03-14)
      This thesis investigates the application and implementation of geometric constraints to manipulate, approximate, and optimize surfaces for modeling and architecture. In modeling, geometric constraints provide an ...

    • A constraint-based UIMS using graph unification 

      Samuel, J. F. (Eurographics Association, 1991)
      This paper describes an experimental UIMS developed to investigate methods of combining and reusing objects within a constraint-based system. A novel approach based on graph-unification facilitated the definition of composite ...

    • Constraint-based Wrinkle Simulation in Texture Space 

      Silva, Paulo; Rungjiratananon, Witawat; Elcott, Sharif; Driancourt, Remi; Igarashi, Takeo (ACM Siggraph, 2015)
      An important factor in increasing realism of synthetic images, wrinkles have received a considerable amount of attention from the computer graphics research community. The method Wrinkle Meshes, targets real-time simulation ...

    • Constriction Computation using Surface Curvature 

      Hétroy, F. (The Eurographics Association, 2005)
      This paper provides a curvature-based algorithm to compute locally shortest geodesics on closed triangulated surfaces. These curves, which are called "constrictions", are useful for shape segmentation. The key idea of the ...

    • Constructing 3D CSG Models from 3D Raw Point Clouds 

      Wu, Qiaoyun; Xu, Kai; Wang, Jun (The Eurographics Association and John Wiley & Sons Ltd., 2018)
      The Constructive Solid Geometry (CSG) tree, encoding the generative process of an object by a recursive compositional structure of bounded primitives, constitutes an important structural representation of 3D objects. ...

    • Constructing and Evaluating Visualisation Task Classifications: Process and Considerations 

      Kerracher, Natalie; Kennedy, Jessie (The Eurographics Association and John Wiley & Sons Ltd., 2017)
      Categorising tasks is a common pursuit in the visualisation research community, with a wide variety of taxonomies, typologies, design spaces, and frameworks having been developed over the last three decades. While these ...

    • Constructing Curvature-continuous Surfaces by Blending 

      Zorin, Denis (The Eurographics Association, 2006)
      In this paper we describe an approach to the construction of curvature-continuous surfaces with arbitrary control meshes using subdivision. Using a simple modification of the widely used Loop subdivision algorithm we obtain ...

    • Constructing Hierarchical Continuity in Hilbert & Moore Treemaps 

      Scheibel, Willy; Döllner, Jürgen (The Eurographics Association, 2023)
      The Hilbert and Moore treemap layout algorithms are based on the space-filling Hilbert and Moore curves, respectively, to map tree-structured datasets to a 2D treemap layout. Considering multiple snapshots of a time-variant ...