THIS INFORMATION IS OBSOLETE AND IS PROVIDED ONLY FOR ITS HISTORICAL VALUE

by D. H. Faber, E. W. M. Rutten-Keulemans and C. Altona, Gorlaeus Laboratories of the University, Leiden, The Netherlands

MMAP is a FORTRAN subroutine package for plotting contour maps, given the value of a surface at the mesh- points of a regular (skew) grid of xy-values. For each chosen contour level, a set of coordinates, representing equivalued points which are situated on the grid lines, is obtained by either linear or "mean- quadratic" interpolation. Strings of succeeding points are created by means of a repetitive search technique. A smooth contour with no abrupt changes in slope is then drawn from weighted averages of two circle segments. A variety of options, e.g., for scaling, production of titles and annotation, is available.All options and parameters, which are specified by a simple CALL, are described on COMMENT cards preceding the program; as an example, a short driver program is included.

FORTRAN IV (IBM 370) Lines of Code: 2218 Recommended Citation: D. H. Faber et al., QCPE 11, 375 (1979).