A 2D Sketch-Based User Interface for 3D CAD Model Retrieval

Abstract

This paper describes a sketch user interface enhanced by feedback for 3D CAD model retrieval. Users can express their intent by sketching 2D shape in the way as engineers draw three views of 3D models. It not only supports users’ free form sketches, but also accepts users’ further editing operations and feedbacks. The interaction paradigm proposed in this paper is supported by a 3D shape matching method, in which three problems are solved: determination of projecting planes and directions, 2D view generation, and similarity measuring between views. In addition, experiments are conducted to evaluate the performance of this sketch user interface by 3D model retrieval. © 2005 by CAD Solutions Company Limited.