A new sketch partitioning and analysis techniques

Tian, H. and Qin, Sheng-feng (2012) A new sketch partitioning and analysis techniques. In: 2012 18th International Conference on Automation and Computing (ICAC), 7 - 8 September 2012, Loughborough.

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Abstract

This paper presents a new concept for reconstructing a 3D object from a construction design sketch under an orthogonal isometric project. In general, for a mechanical part, it can be constructed from a base geometry and then incrementally add or cut other basic constructive elements. During a conceptual design process, designers work through this basic form construction process with freehand drawing, a construction sketch can be received progressively with principal and construction lines. This construction sketch contains information about a valid construction process with related elements, which in turn can support CSG-based solid modeling. The construction sketch can be partitioned into several feature drawing; each feature drawing can be topologically represented a feature graph, and easily recognized as a projection of a corresponding 3D constructive element. While the relationship between two feature graphs gives information to construction methods such as add (Boolean Union) or cut (Boolean Subtraction). From these information, reconstructing a valid 3D object from an construction sketch can be achieved interactively, realizing the “What You Draw is What You Get” design fashion without pre-defined gestures. This paper details construction sketch partitioning and analysis techniques for 3D reconstruction.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	construction sketch, geometric design, isometric sketch, sketch partitioning,
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:	14 Dec 2015 16:42
Last Modified:	12 Oct 2019 19:35
URI:	http://nrl.northumbria.ac.uk/id/eprint/25028

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