ref: f5fd3ab0d6e3fa3c2b7a6a0bc20c5444c7ba8ab9 dir: /sys/src/cmd/plot/libplot/erase.c/
#include "mplot.h" void erase(void){ m_swapbuf(); m_clrwin(clipminx, clipminy, clipmaxx, clipmaxy, e1->backgr); }