#include "mplot.h"void openpl(char *s){	m_initialize(s);	e0->left=mapminx;	e0->bottom=mapmaxy;	e0->sidex=mapmaxx-mapminx;	e0->sidey=mapminy-mapmaxy;	e0->scalex=e0->sidex;	e0->scaley=e0->sidey;	sscpy(e0, e1);	move(0., 0.);}