ref: 78b9c2b9f2dcc79a3d5dbfadfdea8c3e8cb1fa22 dir: /sys/src/cmd/plot/libplot/erase.c/
#include "mplot.h" void erase(void){ m_swapbuf(); m_clrwin(clipminx, clipminy, clipmaxx, clipmaxy, e1->backgr); }