The interactive editing and contouring of empirical fields

1 May 1989

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Computer Graphics and Applications

Vol. 9 (3) , 34-43
https://doi.org/10.1109/38.28109

Abstract

A system for the interactive editing and contouring of surfaces derived from empirical fields is described. The approach taken begins with the representation of a field as a general-order, nonuniform, tensor-product, B-spline surface. It provides an interactive display for editing the surface by control-vertex manipulation and a contouring algorithm that is specifically designed for the fast and robust contouring of B-spline surfaces. Interactive editing of the resulting model is feasible because of the local nature of editing changes when B-splines are used. The use of nonuniform B-splines gives the flexibility required to model highly irregular data efficiently.

Keywords

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