ref: 3e9ae26c2ea9c1b0c1bfcc0ad02c58bc65cb5294 dir: /sys/src/cmd/plot/libplot/erase.c/
#include "mplot.h" void erase(void){ m_swapbuf(); m_clrwin(clipminx, clipminy, clipmaxx, clipmaxy, e1->backgr); }