THREE-DIMENSIONAL SPACE DATA INTERPOLATION PROGRAM AND SHAPE GENERATION PROGRAM ACHIEVED BY COMBINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a data interpolation program usable even in a three-dimensional space and enabling easy calculation without bending.;SOLUTION: A data interpolation program usable in one-dimensional, two-dimensional and three-dimensional spaces is configured such that for three-dimensional lattice point positions at equal intervals the three-dimensional space to which discrete data has been provided, an independent interpolation expression which is a secondary expression is obtained with respect to each coordinate component for each three-dimensional body dividing the unit three-dimensional body of the lattice point into eight, the interpolation expression is uniquely determined and established only by an arithmetic operation without bending by satisfying the condition that a partial differential value is equal to the average value of the partial differential values of the linear interpolation formula of both sides on the boundary surfaces of the unit three-dimensional bodies and the condition that the lower area of the graph of a derivative is equal to that of the graph of the derivative of the linear interpolation formula.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2016,JPO&INPIT