The NURBS book
HoloSketch: a virtual reality sketching/animation tool
ACM Transactions on Computer-Human Interaction (TOCHI) - Special issue on virtual reality software and technology
Continuity between Gregory-like patches
Computer Aided Geometric Design
Surface drawing: creating organic 3D shapes with the hand and tangible tools
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
CAD/Cam Theory and Practice
3-Draw: A Tool for Designing 3D Shapes
IEEE Computer Graphics and Applications
Surface construction by fitting unorganized curves
Graphical Models
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This paper presents a novel progressive surface modelling method to construct a freeform surface incrementally based on 3D motion sketches that represent the boundary and interior characteristic curves. The approach can construct a base surface model from multiple boundary curves and support incremental surface updating from interior characteristic curves which may cross the boundary curves or not. The base surface is first constructed as a regular Coons surface. Upon receiving an interior curve sketch, it is then updated. With this progressive modelling process, a final surface with multiple sub-surfaces can be obtained from a set of unorganised curves and exchanged to a commercial surface modelling software for modification in detail. The approach has been tested with examples. It is capable of dealing with unorganised design curves for surface modelling and easy to use in conceptual design.