ref: 3f5a4e9f7e3c0d1e7c43d2974049e2eb7bc7b5a0 dir: /sys/src/cmd/plot/libplot/erase.c/
#include "mplot.h" void erase(void){ m_swapbuf(); m_clrwin(clipminx, clipminy, clipmaxx, clipmaxy, e1->backgr); }