# 3D isovalue surface plots

## Description

Abstract A Fortran-77 program is presented which translates arrays of Cartesian coordinate triplets describing the surface of a 3D solid object into an input format defining the component surface elements which permit the entire surface to be plotted using standard software. Title of program: DC3DRAW Catalogue Id: ABTM_v1_0 Nature of problem While it is common to plot functions f(x,y) as 2D grid plots or contour maps, a more useful representation of a multidimensional function for many purposes is that which depicts surfaces satisfying the equation of constraint f(x,y,z) = K. Such surfaces have been referred to as isovalue surfaces and have been employed in fields as diverse as quantum mechanics and imaging technology. Versions of this program held in the CPC repository in Mendeley Data ABTM_v1_0; DC3DRAW; 10.1016/0010-4655(91)90123-3 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)