EAGER: programming repetitive tasks by example
CHI '91 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The NURBS book
SKETCH: an interface for sketching 3D scenes
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
An interface for sketching 3D curves
I3D '99 Proceedings of the 1999 symposium on Interactive 3D graphics
Teddy: a sketching interface for 3D freeform design
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Curves and surfaces for CAGD: a practical guide
Curves and surfaces for CAGD: a practical guide
A suggestive interface for 3D drawing
Proceedings of the 14th annual ACM symposium on User interface software and technology
Creating principal 3D curves with digital tape drawing
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The Geometry of Multiple Images: The Laws That Govern The Formation of Images of A Scene and Some of Their Applications
Surface Modeling for CAD - Cam
Surface Modeling for CAD - Cam
A template-based reconstruction of plane-symmetric 3D models from freehand sketches
Computer-Aided Design
ILoveSketch: as-natural-as-possible sketching system for creating 3d curve models
Proceedings of the 21st annual ACM symposium on User interface software and technology
Technical Section: Sketch-based modeling: A survey
Computers and Graphics
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The 3D evaluation of design shapes is an essential step in product styling. Thus, physical models of final-stage design alternatives have been made in tradition, and recently the effort to substitute them with CAD models has been tried. Whereas, designers in the early phase of the design-development stage where almost design concepts are determined, still use raster-type 2D graphics S/Ws. It causes not only the difficulty of evaluating 3D shapes but also the serious severance of a digital dis-connectivity with downstream processes. This paper presents a method of directly constructing 3D plane-symmetric freeform curves with a sketch interface, as the first step of developing a sketch-based 3D-freeform shape creation S/W for designers. A curve drawn by the designer within the see-through box in an arbitrary perspective view, is simultaneously converted to a real space curve without the 3D ambiguity problem except only special cases to be specified.