By Les A. Piegl

Till lately B-spline curves and surfaces (NURBS) have been largely of curiosity to the pc aided layout group, the place they've got turn into the traditional for curve and floor description. this present day we're seeing elevated use of NURBS in modeling gadgets for the visible arts, together with the movie and leisure industries, paintings, and sculpture. NURBS at the moment are additionally getting used for modeling scenes for digital truth functions. those purposes are anticipated to extend. accordingly, it truly is fairly acceptable for The.N'URBS publication to join the Monographs in visible conversation sequence. B-spline curves and surfaces were an everlasting point all through my seasoned­ fessional lifestyles. the 1st version of Mathematical components for special effects, released in 1972, was once the 1st laptop aided design/interactive desktop graph­ ics textbook to include fabric on B-splines. That fabric used to be received in the course of the strong graces of invoice Gordon and Louie Knapp whereas they have been at Syracuse collage. A paper of mine, provided throughout the summer season of 1977 at a Society of Naval Architects and Marine Engineers assembly on computing device aided send floor layout, was once arguably the 1st to envision using B-spline curves for send layout. for plenty of, B-splines, rational B-splines, and NURBS were a piece mysterious.

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