Results 11 to 20 of about 966,408 (295)
A constraint hierarchies approach to geometric constraints on sketches [PDF]
We propose an approach that uses preferences on the constraints in order to deal with over-constrained geometric constraint problems. This approach employs constraint hierarchies, a paradigm that has close relations with the traditional graph-based approaches used in geometric constraint solving.
Jermann, Christophe, Hosobe, Hiroshi
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Compiling Business Rules in a Geometric Constraint over k-Dimensional Objects and ShapesCompiling Business Rules in a Geometric Constraint over k-Dimensional Objects and ...
Martin, Julien +2 more
core +9 more sources
A simple construction method for sequentially tidying up 2D online freehand sketches [PDF]
This paper presents a novel constructive approach to sequentially tidying up 2D online freehand sketches for further 3D interpretation in a conceptual design system.
Qin, S F, Wright, D, Jordanov, I
core +4 more sources
Solving geometric constraints by homotopy [PDF]
Numerous methods have been proposed in order to solve geometric constraints, all of them having their own advantages and drawbacks. In this article, we propose an enhancement to the classical numerical methods, which, up to now, are the only ones that apply to the general case.
Lamure, Hervé, Michelucci, Dominique
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Tolerances in Geometric Constraint Problems [PDF]
Geometric constraint solving is a term of computer-aided design and means the problems which arise when the location of geometric objets is described via geometric relations between them. The issues crucial for engineering applications are solvability of constraint problems and the sensitivity to errors.
Johannes Wallner 0001 +2 more
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Geometrical constraints on the cosmological constant [PDF]
The cosmological constant problem is examined under the assumption that the extrinsic curvature of the space-time contributes to the vacuum. A compensation mechanism based on a variable cosmological term is proposed. Under a suitable hypothesis on the behavior of the extrinsic curvature, we find that an initially large $Λ(t)$ rolls down rapidly to zero
Maia, M. D., Silva, G. S.
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Evasion Differential Game of Multiple Pursuers and a Single Evader with Geometric Constraints in ℓ2
We investigate a differential evasion game with multiple pursuers and an evader for the infinite systems of differential equations in ℓ2. The control functions of the players are subject to geometric constraints.
Gafurjan Ibragimov +3 more
doaj +1 more source
Three-Dimensional Geometric Descent Guidance With Impact Angle Constraint
A novel trajectory-shaping guidance law with impact angle constraint is proposed for attacking stationary targets in a three-dimensional environment.
Hao Zhou +3 more
doaj +1 more source
Abstract The paper reports on the development of a 2D geometric constraint solver. The solver is a major component of a new generation of cad systems based on a high-level geometry representation. The solver uses a graph-reduction directed algebraic approach, and achieves interactive speed. The paper describes the architecture of the solver and its
Bouma, W. +4 more
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On the Lifeline Game of the Inertial Players with Integral and Geometric Constraints
In this paper, we consider a pursuit–evasion game of inertial players, where the pursuer’s control is subject to integral constraint and the evader’s control is subject to geometric constraint.
Bahrom Samatov +3 more
doaj +1 more source

