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Approximate Surfacing of Curve Clouds for Conceptual Shape Creation and Evaluation

[+] Author Affiliations
Erhan Batuhan Arisoy, Gunay Orbay, Levent Burak Kara

Carnegie Mellon University, Pittsburgh, PA

Paper No. DETC2011-48414, pp. 705-715; 11 pages
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 37th Design Automation Conference, Parts A and B
  • Washington, DC, USA, August 28–31, 2011
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5482-2
  • Copyright © 2011 by ASME


In product design, designers often create a multitude of concept sketches as part of the ideation process. Transforming such sketches to 3D digital models usually require special expertise and effort due to a lack of suitable Computer Aided Design (CAD) tools. Although recent advances in sketch-based user interfaces and immersive environments (such as augmented/virtual reality) have introduced novel curve design tools, rapid surfacing of such data remains an open challenge. To this end, we propose a new method that enables a quick construction of approximate surfaces from a cloud of 3D curves that need not be connected to one another. Our method first calculates a vector field by discretizing the space in which the curve cloud appears into a voxel image. This vector field drives a deformable surface onto the 3D curve cloud thus producing a closed surface. The surface smoothness is achieved through a set of surface smoothing and subdivision operations. Our studies show that the proposed technique can be particularly useful for early visualization and assessment of design ideas.

Copyright © 2011 by ASME



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