GenevieveBuckley

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.widgets import RectangleSelector


def _select_rectangle_callback(eclick, erelease):
    """eclick and erelease are the press and release events"""
    x1, y1 = eclick.xdata, eclick.ydata
    x2, y2 = erelease.xdata, erelease.ydata