ref: 3b1e582fc6dc1904a28b1cf71ea0b7e1c47f3f35 dir: /sys/src/cmd/plot/libplot/rmove.c/
#include "mplot.h" void rmove(double xx, double yy){ e1->copyx += xx; e1->copyy += yy; move(e1->copyx, e1->copyy); }