#if !defined(PLOT_3D_H) #define PLOT_3D_H extern void cdecl draw_line(int, int, int, int, int); extern void _fastcall plot_3d_superimpose_16(int, int, int); extern void _fastcall plot_3d_superimpose_256(int, int, int); extern void _fastcall plot_ifs_3d_superimpose_256(int, int, int); extern void _fastcall plot_3d_alternate(int, int, int); extern void plot_setup(); #endif