ref: 1a5dafcc3d8c455b0e7b36dd9bd45c13dd4d91eb 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); }