1989 年 1989 巻 14B 号 p. 133-150
Three compuier programs drawing a two-dimensional contour map, a three-dimensional bird-looking map with mesh lines and a three-dimensional contour map, respectively, are presented.They are coded in C and can run on the personal computer. Using one of these programs, highgrade graphic output is available both on a graphic screen and a XY-plotter.