Research Papers

Formal Language for GeoSpelling

[+] Author and Article Information
Alex Ballu

University of Bordeaux,
I2M, UMR 5295,
351 Cours de la Libération,
Talence 33400, France
e-mail: alex.ballu@u-bordeaux.fr

Luc Mathieu

ENS Cachan—Paris Sud,
61 Avenue du Président Wilson,
Cachan 94235, France
e-mail: luc.mathieu@u-psud.fr

Jean-Yves Dantan

Arts et Métiers ParisTech,
4 rue A. Fresnel,
Metz 57078, France
e-mail: jean-yves.dantan@ensam.eu

Contributed by the Computers and Information Division of ASME for publication in the JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING. Manuscript received October 8, 2014; final manuscript received November 7, 2014; published online April 8, 2015. Editor: Bahram Ravani.

J. Comput. Inf. Sci. Eng 15(2), 021002 (Jun 01, 2015) (6 pages) Paper No: JCISE-14-1323; doi: 10.1115/1.4029216 History: Received October 08, 2014; Revised November 07, 2014; Online April 08, 2015

In order to tackle the ambiguities of geometrical product specification (GPS), GeoSpelling language has been developed to express the semantics of specifications. A detailed syntax of GeoSpelling is proposed in this paper. A specification is defined as a sequence of operations on the skin model. The syntax is based on instructions used in computer programming language: call to functions and flow control by condition and loop. In GeoSpelling, the call to functions corresponds to the declaration of operations; loops make it possible to manage a set of features with rigor and conditions to select features from a set.

Copyright © 2015 by ASME
Topics: Cylinders , Skin , Semantics
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Grahic Jump Location
Fig. 1

Nominal and “skin” models

Grahic Jump Location
Fig. 7

Minimum and maximum material distances

Grahic Jump Location
Fig. 8

Perpendicularity tolerances

Grahic Jump Location
Fig. 9

Skin model for perpendicularity

Grahic Jump Location
Fig. 10

Position tolerance

Grahic Jump Location
Fig. 11

Skin model for the position




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