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Title: A simple construction method for sequentially tidying up 2D online freehand sketches
Authors: Qin, S F
Wright, D
Jordanov, I
Keywords: Sketch-based design;Geometric constraints solver;Computer-human interface
Issue Date: 2006
Publisher: University of West Bohemia
Citation: Proceedings of WSCG’2006, the 14th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, Plzen, Czech Republic, January 30-February 3, 2006. pp. 271-278
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.
ISBN: 80-86943-03-8
Appears in Collections:Design
Dept of Design Research Papers

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