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Proceedings of the 4th Eurographics workshop on Sketch-based interfaces and modeling, 2007
We describe a sketch-based system for modeling 3D shapes based on a new multi resolution shape representation we call a layered mesh. Like subdivision surfaces, layered meshes provide a multi resolution hierarchy of meshes. A key difference is that a layered mesh lets you edit the shape and structure of the mesh at any level of the hierarchy, through ...
Haixiong Wang, Lee Markosian
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We describe a sketch-based system for modeling 3D shapes based on a new multi resolution shape representation we call a layered mesh. Like subdivision surfaces, layered meshes provide a multi resolution hierarchy of meshes. A key difference is that a layered mesh lets you edit the shape and structure of the mesh at any level of the hierarchy, through ...
Haixiong Wang, Lee Markosian
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2018
We recognize gentleness in the literary figures that turned everything around them upside down without meaning to, including Prince Myshkin, the majority of characters in Kafka, in Melville, in the short stories of Tolstoy, little John Mohune in Moonfleet. These characters arrive from nowhere and with gentleness provoke violence and passion around them.
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We recognize gentleness in the literary figures that turned everything around them upside down without meaning to, including Prince Myshkin, the majority of characters in Kafka, in Melville, in the short stories of Tolstoy, little John Mohune in Moonfleet. These characters arrive from nowhere and with gentleness provoke violence and passion around them.
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2013
The geometry of ruled surfaces is highly relevant for freeform architectural design, owing to the fact that any negatively curved freeform shape can be approximated by a smooth union of ruled surface strips. This information is important for the efficient manufacturing of both skins and underconstructions.
Simon Flöry +4 more
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The geometry of ruled surfaces is highly relevant for freeform architectural design, owing to the fact that any negatively curved freeform shape can be approximated by a smooth union of ruled surface strips. This information is important for the efficient manufacturing of both skins and underconstructions.
Simon Flöry +4 more
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Discontinuous free form deformations
12th Pacific Conference on Computer Graphics and Applications, 2004. PG 2004. Proceedings., 2004Contemporary deformation tools let designers modify the geometry of deformed models. This approach can be restrictive if the designer wants to incorporate holes or gaps into a model while deforming it into a different shape. This work presents a variant of FFD that would let the designer incorporate isoparametric discontinuities into the deformation ...
S. Schein, G. Elber
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1993
Today’s automobiles and household electrical appliances are being designed with complicated shapes and surfaces. To design such shapes and surfaces in a computer, CAD systems have been introducing various kinds of free-form curves besides straight lines, circles, ellipses, and parabolas. Representing free-form curves in a computer has become one of the
Hiroshi Toriya, Hiroaki Chiyokura
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Today’s automobiles and household electrical appliances are being designed with complicated shapes and surfaces. To design such shapes and surfaces in a computer, CAD systems have been introducing various kinds of free-form curves besides straight lines, circles, ellipses, and parabolas. Representing free-form curves in a computer has become one of the
Hiroshi Toriya, Hiroaki Chiyokura
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1993
Surfaces have been studied as an expanded form of curves for a long time. As the pioneers of studies on surface representations, Coons and Bezier can be referred. In 1964, Coons proposed the Coons surface[44] for surface representation. It is used to define surface shapes interactively in computers.
Hiroshi Toriya, Hiroaki Chiyokura
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Surfaces have been studied as an expanded form of curves for a long time. As the pioneers of studies on surface representations, Coons and Bezier can be referred. In 1964, Coons proposed the Coons surface[44] for surface representation. It is used to define surface shapes interactively in computers.
Hiroshi Toriya, Hiroaki Chiyokura
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Continuous free form deformation
Computer Networks and ISDN Systems, 1997Abstract In this paper, we present a new free-form deformation model which uses 3D lattices as deformation tool. With this technique called CFFD, the deformation tool made of Bezier tetrahedral volumes can describe any 3D space subdivision. Furthermore, this model maintains the continuity of the surface of objects throughout the deformation.
D. Bechmann, Y. Bertrand, S. Thery
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Computers & Graphics, 2001
Abstract In this work, the matching problem between two free-form parametric surfaces, S 0 (u, v) and S 1 (u, v) , has been considered in the context of a first stage of the metamorphosis process, which is defined as gradual and continuous transformation of one key shape into another.
Tatiana Surazhsky, Gershon Elber
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Abstract In this work, the matching problem between two free-form parametric surfaces, S 0 (u, v) and S 1 (u, v) , has been considered in the context of a first stage of the metamorphosis process, which is defined as gradual and continuous transformation of one key shape into another.
Tatiana Surazhsky, Gershon Elber
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Volume 6: 35th Mechanisms and Robotics Conference, Parts A and B, 2011
The paper presents the first theory and practice for free-form conjugation design and extends the conventional conjugate tooth profiles to free-form tooth profiles. It presents a conjugation theory that offers a rigorous correspondence between a conjugate pair and the cutter profile or contact path, discovers the necessary and sufficient conditions for
Bowen Yu, Kwun-lon Ting
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The paper presents the first theory and practice for free-form conjugation design and extends the conventional conjugate tooth profiles to free-form tooth profiles. It presents a conjugation theory that offers a rigorous correspondence between a conjugate pair and the cutter profile or contact path, discovers the necessary and sufficient conditions for
Bowen Yu, Kwun-lon Ting
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Free-Form Comparative Education
Comparative Education Review, 1975IT IS PERHAPS especially appropriate in San Francisco where "everything is very much like Chop Suey" to address you on that characteristic of comparative education. I have always considered the elastic boundaries of the field to be an advantage, in that they allow freedom to cross traditional disciplinary boundaries, to seek information and seize ...
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