ref: c33fc43408cb22d606d2f621c34a5748cb0e2bc5
dir: /sys/src/cmd/plot/libplot/openpl.c/
#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.); }