openpyxl 图表标签与数据重叠

openpyxl chart label overlapping with data

如上图，openpyxl中是否有属性可以让数据的标签不与负数列重叠？

为 x_axis tick label position 添加规范：

chart.x_axis.tickLblPos = "low" #this is actually at the top of the graph