def METHOD_NAME(self):
    if self.logx:
        xex = [np.log(self.xmin / self.xstep), np.log(self.xmax * self.xstep)]
    else:
        xex = [self.xmin - self.xstep, self.xmax + self.xstep]
    if self.logy:
        yex = [np.log(self.ymin / self.ystep), np.log(self.ymax * self.ystep)]
    else:
        yex = [self.ymin - self.ystep, self.ymax + self.ystep]
    return xex + yex