Modifying the shape of NURBS surfaces with geometric constraints

  title={Modifying the shape of NURBS surfaces with geometric constraints},
  author={Shi-Min Hu and Youfu Li and Tao Ju and Xiang Zhu},
  journal={Computer-Aided Design},
NURBS surfaces are among the most commonly used parametric surfaces in CAGD and Computer Graphics. This paper investigates shape modi®cation of NURBS surfaces with geometric constraints, such as point, normal vector, and curve constraints. Two new methods are presented by constrained optimization and energy minimization. The former is based on minimizing changes in control net of surfaces, whereas the latter is based on strain energy minimization. By these two methods, we change control points… CONTINUE READING
Highly Cited
This paper has 79 citations. REVIEW CITATIONS



Citations per Year

79 Citations

Semantic Scholar estimates that this publication has 79 citations based on the available data.

See our FAQ for additional information.