A simple construction method for sequentially tidying up 2D online freehand sketches

Qin, Sheng-feng, Wright, David and Jordanov, Ivan (2006) A simple construction method for sequentially tidying up 2D online freehand sketches. In: Full Paper Proceedings of the 14th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG 2006). University of West Bohemia, Plzen, pp. 271-278. ISBN 9788086943039

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Official URL: http://wscg.zcu.cz/DL/wscg_DL.htm

Abstract

This paper presents a novel constructive approach to sequentially tidying up 2D online freehand sketches for
further 3D interpretation in a conceptual design system. Upon receiving a sketch stroke, the system first identifies it as a 2D primitive and then automatically infers its 2D geometric constraints related to previous 2D geometry (if any). Based on recognized 2D constraints, the identified geometry will be modified accordingly to meet its constraints. The modification is realized in one or two sequent geometric constructions in consistence with its degrees of freedom. This method can produce 2D configurations without iterative procedures to solve constraint equations. It is simple and easy to use for a real-time application. Several examples are tested and discussed.

Item Type: Book Section
Uncontrolled Keywords: sketch-based design, geometric constraints solver, computer-human interface
Subjects: G900 Others in Mathematical and Computing Sciences
W200 Design studies
Department: Faculties > Arts, Design and Social Sciences > Design
Depositing User: Ay Okpokam
Date Deposited: 21 Dec 2015 16:28
Last Modified: 24 Oct 2017 08:20
URI: http://nrl.northumbria.ac.uk/id/eprint/25165

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