An interactive computer graphics method has been developed for the rapid generation of arbitrary shaped three-dimensional surfaces. The method is a synthesis of spline theory and algorithms, an interactive means for man/machine communication, and software for static or dynamic graphics display. The basic technique employed is a modified lofting method in which sectional curves are represented by uniform B-splines and the surface is interpolated between sections by Cardinal splines. Among the features of this method are algorithms which enable interactive modification of the B-spline representation of the sectional curves. At all stages of the process, the spatial information is graphically displayed to the user. Complex surfaces can be created by the combination of a number of shapes that have been separately generated and automatically joined. The system has been successfully interfaced to a variety of analytical routines for structural, medical, and graphical applications.

  • Corporate Authors:

    Association for Computing Machinery (ACM)

    2 Penn Plaza
    New York, NY  United States  10121-0701
  • Authors:
    • Wu, S C
    • Abel, J F
    • Greenberg, D P
  • Publication Date: 1977-10

Media Info

  • Features: References;
  • Pagination: 10 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00170908
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Mar 29 1978 12:00AM