Python第三方库之openpyxl(4)

2D柱状图

在柱状图中，值被绘制成水平条或竖列。

垂直、水平和堆叠柱状图。

注意：以下设置影响不同的图表类型

1.在垂直和水平条形图之间切换，分别设置为col或bar

2.当使用堆叠图表时，overlap需要设置为100

3.如果条是水平的，x轴和y轴要反转

from openpyxl import Workbook

from openpyxl.chart import BarChart, Series, Reference

wb = Workbook(write_only=True)

ws = wb.create_sheet()

rows = [

    ('Number', 'Batch 1', 'Batch 2'),

    (2, 10, 30),

    (3, 40, 60),

    (4, 50, 70),

    (5, 20, 10),

    (6, 10, 40),

    (7, 50, 30),

]

for row in rows:

    ws.append(row)

chart1 = BarChart()

chart1.type = "col"

chart1.style = 10

chart1.title = "Bar Chart"

chart1.y_axis.title = 'Test number'

chart1.x_axis.title = 'Sample length (mm)'

data = Reference(ws, min_col=2, min_row=1, max_row=7, max_col=3)

cats = Reference(ws, min_col=1, min_row=2, max_row=7)

chart1.add_data(data, titles_from_data=True)

chart1.set_categories(cats)

chart1.shape = 4

ws.add_chart(chart1, "A10")

from copy import deepcopy

chart2 = deepcopy(chart1)

chart2.style = 11

chart2.type = "bar"

chart2.title = "Horizontal Bar Chart"

ws.add_chart(chart2, "G10")

chart3 = deepcopy(chart1)

chart3.type = "col"

chart3.style = 12

chart3.grouping = "stacked"

chart3.overlap = 100

chart3.title = 'Stacked Chart'

ws.add_chart(chart3, "A27")

chart4 = deepcopy(chart1)

chart4.type = "bar"

chart4.style = 13

chart4.grouping = "percentStacked"

chart4.overlap = 100

chart4.title = 'Percent Stacked Chart'

ws.add_chart(chart4, "G27")

wb.save("bar.xlsx")

运行结果

3D柱状图

from openpyxl import Workbook

from openpyxl.chart import (

    Reference,

    Series,

    BarChart3D,

)

wb = Workbook()

ws = wb.active

rows = [

    (None, 2013, 2014),

    ("Apples", 5, 4),

    ("Oranges", 6, 2),

    ("Pears", 8, 3)

]

for row in rows:

    ws.append(row)

data = Reference(ws, min_col=2, min_row=1, max_col=3, max_row=4)

titles = Reference(ws, min_col=1, min_row=2, max_row=4)

chart = BarChart3D()

chart.title = "3D Bar Chart"

chart.add_data(data=data, titles_from_data=True)

chart.set_categories(titles)

ws.add_chart(chart, "E5")

wb.save("bar3d.xlsx")

运行结果