scholarly journals 3D Solid Reconstruction from 2D Orthographic Views

Author(s):  
Long Hoang
Author(s):  
Amitesh Mishra ◽  
Anupam Saxena

In this paper is proposed a method to reconstruct a solid from given two or three orthographic views along with any number of primary auxiliary views based on the combination of wireframe and volumetric approaches. None of the existing works in automatic reconstruction of solids from two dimensional orthographic views have addressed auxiliary views in detail. Polyhedral approximation of cylindrical, conical, toroidal and spherical surfaces is considered. The algorithm presented, entails the construction of the basic wire-frame from given standard views using the wire-frame approach. The projections in the auxiliary views on the basic orthographic views are swept along the projection lines to form the primitives. These primitives are glued to the basic wire-frame to construct the final solid. Numerous examples are presented in this paper to demonstrate the versatility of the proposed method which can handle partial standard and auxiliary views as well.


1993 ◽  
Vol 12 (2) ◽  
pp. 137-158 ◽  
Author(s):  
Weidong Wang ◽  
Georges G. Grinstein

Author(s):  
Baojian Yang ◽  
Yongning Deng ◽  
Xia Yue ◽  
Kenneth Tze Kin Teo
Keyword(s):  

2017 ◽  
Vol 26 (4) ◽  
pp. 1899-1910 ◽  
Author(s):  
Yashin Dicente Cid ◽  
Henning Muller ◽  
Alexandra Platon ◽  
Pierre-Alexandre Poletti ◽  
Adrien Depeursinge

2014 ◽  
Vol 91 ◽  
pp. 68-83 ◽  
Author(s):  
Ronaldo Rigobello ◽  
Humberto Breves Coda ◽  
Jorge Munaiar Neto

1998 ◽  
Vol 122 (1) ◽  
pp. 71-77 ◽  
Author(s):  
Charalabos Doumanidis ◽  
Eleni Skordeli

Recent solid freeform fabrication methods generate 3D solid objects by material deposition in successive layers made of adjacent beads. Besides numerical simulation, this article introduces an analytical model of such material addition, using superposition of unit deposition distributions, composed of elementary spherical primitives consistent with the mass transfer physics. This real-time surface geometry model, with its parameters identified by in-process profile measurements, is used for Smith-prediction of the material shape in the unobservable deposition region. The model offers the basis for a distributed-parameter geometry control scheme to obtain a desired surface topology, by modulating the feed and motion of a moving mass source. The model was experimentally tested on a fused wire deposition welding station, using optical sensing by a scanning laser stripe. Its applications to other rapid prototyping methods are discussed. [S0022-0434(00)02301-7]


Author(s):  
Mohsen Rezayat

Abstract An integral part of implementing parallel product and process designs is simulation through numerical analysis. This simulation-driven design requires discretization of the 3D part in an appropriate manner. If the part is thin or has thin sections (e.g., plastic parts), then an analysis model with reduced dimensionality may be more accurate and economical than a standard 3D model. In addition, substantial simplification of some details in the design geometry may be beneficial and desirable in the analysis model. Unfortunately, the majority of CAD systems do not provide the means for abstraction of appropriate analysis models. In this paper we present a new approach, based on midsurface abstraction, which holds significant promise in simplifying simulation-driven design. The method is user-friendly because very little interaction is required to guide the software in its automatic creation of the desired analysis model. It is also robust because it handles typical parts with complex and interacting features. Application of the method for feature recognition and abstraction is also briefly discussed.


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