如何使用xlxswriter向图表添加辅助x轴？

Question

我试图将辅助x轴添加到共享相同y轴的图表。我尝试将其中一个图形作为一条线，将另一图形作为散布线，然后使用Combine函数，但是我没有得到想要的东西。

这就是我所做的。

import xlsxwriter

worksheet = workbook.add_worksheet("Charts")
# I have some predetermine data in each sheet 
id_sheet = worksheet1.name
td_sheet = worksheet2.name
gbin_sheet = worksheet3.name

# chart = workbook.add_chart(
#     {'type': 'scatter', "subtype": "straight"})
# chart1 = workbook.add_chart(
#     {'type': 'scatter', "subtype": "straight"})

chart = workbook.add_chart(
    {'type': 'line'})
chart = workbook.add_chart(
    {'type': 'line'})

#     [sheetname, first_row, first_col, last_row, last_col]
chart.add_series({
    'categories': [id_sheet, 1, 0, id_row_range, 0],
    'values':     [id_sheet, 1, 1, id_row_range, 1],
    # 'name': "Signal_A",
})

chart.add_series({
    'categories': [gbin_sheet, 1, 0, gbin_row_range, 0],
    'values':     [gbin_sheet, 1, 1, gbin_row_range, 1],
    'name':     "Signal_B",
    'x2_axis': True,
    # 'y2_axis': True,
})

chart.set_title({'name': 'Test results'})
chart.set_x_axis({'name': 'Cyclemarker'})
chart.set_y_axis({'name': 'Signal', 'major_gridlines': {
                 'visible': 0}, 'crossing': "max"})
chart.set_x2_axis({'name': 'time'})
# chart.set_y2_axis({'name': 'Signal', 'major_gridlines': {
#     'visible': 0}, 'crossing': 0})

# Insert the chart into the worksheet (with an offset).
worksheet.insert_chart('D2', chart, {'x_offset': 25, 'y_offset': 10})

workbook.close()

我得到两个图，顶部只有一个x轴。请帮忙。