餅圖?

餅圖將數據繪制為圓的切片，每個切片表示整個圓的百分比。切片按順時針方向繪制，0°位于圓的頂部。餅圖只接受一系列數值，標題將默認為系列的標題。

1 from openpyxl import Workbook

2

3 from openpyxl.chart import (

4 PieChart,

5 ProjectedPieChart,

6 Reference

7 )

8 from openpyxl.chart.series import DataPoint

9

10 data = [

11 ['Pie', 'Sold'],

12 ['Apple', 50],

13 ['Cherry', 30],

14 ['Pumpkin', 10],

15 ['Chocolate', 40],

16 ]

17

18 wb = Workbook()

19 ws = wb.active

20

21 for row in data:

22 ws.append(row)

23

24 pie = PieChart()

25 labels = Reference(ws, min_col=1, min_row=2, max_row=5)

26 data = Reference(ws, min_col=2, min_row=1, max_row=5)

27 pie.add_data(data, titles_from_data=True)

28 pie.set_categories(labels)

29 pie.title = "Pies sold by category"

30

31 # Cut the first slice out of the pie

32 slice = DataPoint(idx=0, explosion=20)

33 pie.series[0].data_points = [slice]

34

35 ws.add_chart(pie, "D1")

36

37

38 ws = wb.create_sheet(title="Projection")

39

40 data = [

41 ['Page', 'Views'],

42 ['Search', 95],

43 ['Products', 4],

44 ['Offers', 0.5],

45 ['Sales', 0.5],

46 ]

47

48 for row in data:

49 ws.append(row)

50

51 projected_pie = ProjectedPieChart()

52 projected_pie.type = "pie"

53 projected_pie.splitType = "val" # split by value

54 labels = Reference(ws, min_col=1, min_row=2, max_row=5)

55 data = Reference(ws, min_col=2, min_row=1, max_row=5)

56 projected_pie.add_data(data, titles_from_data=True)

57 projected_pie.set_categories(labels)

58

59 ws.add_chart(projected_pie, "A10")

60

61 from copy import deepcopy

62 projected_bar = deepcopy(projected_pie)

63 projected_bar.type = "bar"

64 projected_bar.splitType = 'pos' # split by position

65

66 ws.add_chart(projected_bar, "A27")

67

68 wb.save("pie.xlsx")

投影餅圖?

投影餅圖從餅圖中提取一些切片并投影到第二個餅圖或條形圖中。當數據系列中有很多較小的項時，這非常有用。圖表可以按百分比、值(value)或位置進行拆分。如果未設置任何內容，則應用程序將決定使用哪個。此外，還可以自定義拆分。

三維餅圖?

餅圖也可以用三維效果創建。

1 from openpyxl import Workbook

2

3 from openpyxl.chart import (

4 PieChart3D,

5 Reference

6 )

7

8 data = [

9 ['Pie', 'Sold'],

10 ['Apple', 50],

11 ['Cherry', 30],

12 ['Pumpkin', 10],

13 ['Chocolate', 40],

14 ]

15

16 wb = Workbook()

17 ws = wb.active

18

19 for row in data:

20 ws.append(row)

21

22 pie = PieChart3D()

23 labels = Reference(ws, min_col=1, min_row=2, max_row=5)

24 data = Reference(ws, min_col=2, min_row=1, max_row=5)

25 pie.add_data(data, titles_from_data=True)

26 pie.set_categories(labels)

27 pie.title = "Pies sold by category"

28

29

30 ws.add_chart(pie, "D1")

31

32 wb.save("pie3D.xlsx")

漸變餅圖?

也可以使用漸變序列創建餅圖。

總結

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