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Perspective (geometry)

About: Perspective (geometry) is a research topic. Over the lifetime, 277 publications have been published within this topic receiving 5795 citations. The topic is also known as: perspective (geometry).


Papers
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01 Jan 2016
TL;DR: In this paper, the authors present a hands-on workshop to draw a building directly in perspective using the Modular Perspective Model (MPM) and three modular scales of the perspective plane.
Abstract: The aim of this Workshop is to learn hands-on to draw a building directly in perspective. You will experience how easy is to draw a view of The Arch of Defense (Paris) in accurate proportions, without the aid of blueprints. Unlike traditional methods, the entire process takes place on the perspective plane. All that it takes is the ability to see the building’s points of interest in three-dimensions on this plane. We will begin with the basic notions of the Modular Perspective model and how the three modular scales of the perspective plane are read. The time lapse for each activity of the workshop is indicated (in minutes) at the beginning of each page.

1 citations

Journal ArticleDOI
TL;DR: In this article, a trigonometric method is proposed to make the entire drawing in one plane, the perspective plane, and the plotting of the several vanishing points as exact distances measured along the horizon from the center of vision instead of being points located by the intersection of two or more lines.
Abstract: Several new ideas are presented which result not only in a quicker and simpler drawing procedure but also make possible the construction of exact, measured-to-scale perspective block diagrams instead of idealized pictures, as they now largely are. The trigonometric method is proposed, the use of which permits the entire drawing to be made in one plane--the perspective plane--hence, a simplified drawing procedure. It also permits the plotting of the several vanishing points as exact distances measured along the horizon from the center of vision instead of being points located by the intersection of two or more lines. The distances are found by means of one simple trigonometric formula. In diagrams drawn in angular perspective, two additional vanishing points, termed triangle points, are used.It is suggested that all perspective block diagrams be accompanied by the following data: (1) the coordinates of the position of the observer9s eye, (2) in angular perspective, the angle made by one of the receding edges of the block with the perspective plane, and (3) the dimensions of the block.

1 citations

Patent
13 Jun 1990
TL;DR: In this article, a system for the automatic recognition of parallel lines in a perspective image of a viewed object was proposed, which consists of a recognition system which detects edge lines of the image and recognises as parallel lines those lines which have a common vanishing direction.
Abstract: A system for the automatic recognition of parallel lines in a perspective image of a viewed object (8) comprises a recognition system (7) which detects edge lines of the image and recognises as parallel lines those lines which have a common vanishing direction (17) An algorithm generates a set of planes (14, 15, 16) for the image lines, together with a set of initial pairings between these lines The quality of fit is decided by the deviation of the end points of the lines in a least squares fit to the common vanishing direction

1 citations

Posted Content
TL;DR: In this article, a new perspective was proposed to relate Gromov-Witten invariants to their cohomological analogues in the case of projective spaces, and it was shown that adapting the confluence process to Givental's small $K$-theoretical $J$-function recovers the small cohomologically invariant $J-function.
Abstract: In this paper, we study $K$-theoretic Gromov--Witten invariants of projective spaces. Using the theory of the confluence of $q$-difference equations, introduced by J. Sauloy, we propose a new perspective to relate $K$-theoretical Gromov--Witten invariants to their cohomological analogues. In the case of projective spaces, we show that adapting the confluence process to Givental's small $K$-theoretical $J$-function recovers the small cohomological $J$-function.

1 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202110
20204
201910
201813
201712
20167