G-Prime B-Spline Manipulation Package Basic Mathematical Subroutines.

Abstract

This report describes a library of mathematical subroutines for defining and operating on B-spline curves and surfaces. This library contains subroutines for evaluating B-spline functions, for using B-splines as a basis for fitting curves and surface data, and for finding the intersections of B-spline curves and surfaces. An explanation of the general theory, a summary of important properties, and detailed operating instructions for each subroutine are given. A program illustrating a typical use of the basic subroutines has been included along with computer-generated plots of B-spline surfaces and intersection curves. Although the basic evaluation subroutines use previously published techniques, the fitting and intersection procedures represent effective new approaches to the treatment of these old problems. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1977
Accession Number
ADA038876

Entities

People

  • James M. Mckee
  • Richard J. Kazden

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Algorithms
  • Analytic Functions
  • Computations
  • Computer Graphics
  • Curvature
  • Equations
  • Geometric Forms
  • Geometry
  • Identities
  • Instructions
  • Lines (Geometry)
  • Numbers
  • Periodic Functions
  • Polygons
  • Real Numbers
  • Sequences
  • Two Dimensional

Readers

  • Approximation Theory.
  • Computer Science.