今天來說圓餅圖，可以快速看出這個項目在全部數量佔的比例。

一樣線建立Drawing，加上pie，這裡的資料格式，只有一層List，不用換算百分比，直接給值自己就會換算了。

完整程式碼

from reportlab.platypus import SimpleDocTemplate
from reportlab.graphics.charts.piecharts import Pie
from reportlab.graphics.shapes import Drawing

drawing = Drawing(200, 100)
dataList = [10, 20, 30, 40, 50, 60, 70]

pie = Pie()
pie.data = dataList
pie.labels = ['A', 'B', 'C', 'D', 'E', 'F', 'G']
drawing.add(pie)

fileName = "example.pdf"
pdfTemplate = SimpleDocTemplate(fileName)
story = []
story.append(drawing)
pdfTemplate.build(story)

結果圖

改顏色是改
slices[num].fillColor: num 是資料的順序
加上label 到區塊的線
sideLabels = 1
完整程式碼

from reportlab.lib import colors
from reportlab.platypus import SimpleDocTemplate
from reportlab.graphics.charts.piecharts import Pie
from reportlab.graphics.shapes import Drawing

drawing = Drawing(200, 100)
dataList = [10, 20, 30, 40, 50, 60, 70]

pie = Pie()
pie.data = dataList
pie.labels = ['A', 'B', 'C', 'D', 'E', 'F', 'G']
pie.sideLabels = 1
pie.slices[0].fillColor = colors.red
pie.slices[1].fillColor = colors.gray
pie.slices[2].fillColor = colors.green
pie.slices[3].fillColor = colors.purple
pie.slices[4].fillColor = colors.blue
pie.slices[5].fillColor = colors.pink
pie.slices[6].fillColor = colors.orange
drawing.add(pie)

fileName = "example.pdf"
pdfTemplate = SimpleDocTemplate(fileName)
story = []
story.append(drawing)
pdfTemplate.build(story)

結果圖

參考資料:

• ReportLab 說明文件

如果有任何寫得不好的地方，請跟我說，謝謝。