surface intersection, booleans, NURBS, T-Splines
This paper addresses the long-standing problem of the unavoidable gaps that arise when expressing the intersection of two NURBS surfaces using conventional trimmed-NURBS representation. The solution converts each trimmed NURBS into an untrimmed T-Spline, and then merges the untrimmed T-Splines into a single, watertight model. The solution enables watertight fillets of NURBS models, as well as arbitrary feature curves that do not have to follow isoparameter curves. The resulting T-Spline representation can be exported without error as a collection of NURBS surfaces.
Original Publication Citation
T. W. Sederberg and G. T. Finnigan and X. Li and H. Lin and H. Ipson, "Watertight Trimmed NURBS," ACM Transactions on Graphics 27(3) , pp. 79:1-79:8, 28.
BYU ScholarsArchive Citation
Sederberg, Thomas W.; Li, Xin; Lin, Hongwei; and Ipson, Heather, "Watertight Trimmed NURBS" (2008). Faculty Publications. 906.
Physical and Mathematical Sciences
© 2008 ACM. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in the ACM Transactions on Graphics, 27, 3, (2008), http://doi.acm.org/10.1145/1399504.1360678.
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