Geometric modeling in the analysis of trivariate functions

Abstract A use of the integrated computer geometry/graphics systems in the analysis of functions of three variables (trivariate functions) is discussed. A method is obtained for the piecewise analytical description of the hypersurface defined by a trivariate function and of the isosurface of such a function. Algorithms for graphic presentation of the isosurface with hidden lines and surfaces removal are described. These algorithms are implemented at the SM-4 computer using the SAGRAF program complex.