Automatically assigned DDC number: 0051
Manually assigned DDC number: 00642
Number of references: 4
Title: Computing the Angularity Tolerance
Author:
Author:
Author:
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Subject: De Berg,Henk Meijer,Mark Overmars,Gordon Wilfong Computing the Angularity Tolerance
Description: In computational metrology one needs to compute whether an object satisfies specifications of shape within an acceptable tolerance. To this end positions on the object are measured, resulting in a collection of points in space. From this collection of points one wishes to extract information on flatness, roundness, etc. of the object. In this paper we study one particular feature of objects, the angularity. The angularity indicates how well a plane makes a specified angle with another plane. We study the problem in 2-dimensional space (where the planes become lines) and in 3-dimensional space. In 2-dimensional space the problem is equivalent to computing the smallest wedge of the a given angle that contains all the points. We give an O(n 2 log n) algorithm for this problem. In 3-dimensional space we study the more restricted problem where one of the planes is known (a datum plane). In this case the problem is equivalent to asking for the smallest width 3-dimensional strip that conta...
Contributor: The Pennsylvania State University CiteSeer Archives
Publisher: unknown
Date: 1997-01-20
Pubyear: 1996
Format: ps
Identifier: http://citeseer.ist.psu.edu/144795.html
Source: ftp://ftp.cs.uu.nl/pub/RUU/CS/techreps/CS-1996/1996-25.ps.gz
Language: en
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Rights: unrestricted
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