A BASIC Program for Contouring of Grid Data

Abstract

In this paper, we presented the principle and the BASIC program for raving contour maps on the screen of a personal computer based on given grid data. The main part of contouring is done in a subroutine *CONTOUR except for the input of grid data and the specification of th mapping area on the screen. So, the subroutine can be used in other programs as the basic module for illustrating the calculated results by contour maps.