Computer Physics Communications Program LibraryPrograms in Physics & Physical Chemistry |

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Manuscript Title: Program for B-spline interpolation of surfaces with application to
computer tomography. | ||

Authors: J.M.F. Chamayou | ||

Program title: RAMFLA | ||

Catalogue identifier: AARO_v1_0Distribution format: gz | ||

Journal reference: Comput. Phys. Commun. 27(1982)187 | ||

Programming language: Fortran. | ||

Computer: VAX 11 DIGITAL. | ||

Operating system: VAX/VMS. | ||

RAM: 64K words | ||

Word size: 32 | ||

Keywords: General purpose, Plot, Computer tomography, B-spline interpolation, Parametrically defined Surfaces, Computer graphics for Intersections between Straight lines, Planes and surfaces, Visible surface plot, Surface shadowing. | ||

Classification: 14. | ||

Nature of problem:The interactive package presented here is used to interpolate by a nine- point formula a general surface given by the equation: F(X,Y,Z)=0 with the arguments parametrically defined by: X=f(u,v); Y=g(u,v); Z=h(u,v). Use is made of 3 bicubic (or biparabolic or bilinear) B-splines in order to interpolate f,g and h respectively. The main application is the reconstruction of surfaces given in computer tomography. Hidden lines are deleted and a shadowed program is also provided. | ||

Restrictions:The interpolation points must be provided in a set of non-intersecting contours. | ||

Running time:Depends on the number of interpolation points, particularly for the hidden point process. |

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