Python|使用openpyxl模块在excel表格中绘制图表|套装 – 1

先决条件：使用 openpyxl 读写到 excel 工作表

Openpyxl是一个Python库，使用它可以对 excel 文件执行多种操作，例如读取、写入、算术运算和绘图。让我们看看如何使用实时数据绘制不同的图表。

图表由至少一系列的一个或多个数据点组成。系列本身由对单元格范围的引用组成。

为了在 Excel 表上绘制图表，首先，创建特定图表类（即 BarChart、LineChart 等）的图表对象。创建图表对象后，在其中插入数据，最后，将该图表对象添加到工作表对象中。

代码 #1：绘制条形图
要在 Excel 工作表上绘制条形图，请使用 openpyxl.chart 子模块中的BarChart class 。

# import openpyxl module
import openpyxl
  
# import BarChart class from openpyxl.chart sub_module
from openpyxl.chart import BarChart,Reference
  
# Call a Workbook() function of openpyxl 
# to create a new blank Workbook object
wb = openpyxl.Workbook()
  
# Get workbook active sheet 
# from the active attribute.
sheet = wb.active
  
# write o to 9 in 1st column of the active sheet
for i in range(10):
    sheet.append([i])
  
# create data for plotting
values = Reference(sheet, min_col = 1, min_row = 1,
                         max_col = 1, max_row = 10)
  
# Create object of BarChart class
chart = BarChart()
  
# adding data to the Bar chart object
chart.add_data(values)
  
# set the title of the chart
chart.title = " BAR-CHART "
  
# set the title of the x-axis
chart.x_axis.title = " X_AXIS "
  
# set the title of the y-axis
chart.y_axis.title = " Y_AXIS "
  
# add chart to the sheet
# the top-left corner of a chart
# is anchored to cell E2 .
sheet.add_chart(chart, "E2")
  
# save the file
wb.save("barChart.xlsx")

输出：

代码 #2：绘制 3D 条形图

要在 Excel 工作表上绘制 3D 条形图，请使用 openpyxl.chart 子模块中的BarChart3D class 。

# import openpyxl module
import openpyxl
  
# import BarChart3D class from openpyxl.chart sub_module
from openpyxl.chart import BarChart3D,Reference
  
# write o to 9 in 1st column of the active sheet
for i in range(10):
    sheet.append([i])
  
values = Reference(sheet, min_col = 1, min_row = 1,
                         max_col = 1, max_row = 10)
  
# Create object of BarChart3D class
chart = BarChart3D()
  
chart.add_data(values)
  
# set the title of the chart
chart.title = " BAR-CHART3D "
  
# set the title of the x-axis
chart.x_axis.title = " X AXIS "
  
# set the title of the y-axis
chart.y_axis.title = " Y AXIS "
  
# add chart to the sheet
# the top-left corner of a chart
# is anchored to cell E2.
sheet.add_chart(chart, "E2")
  
# save the file
wb.save("BarChart3D.xlsx")

输出：

代码#3：绘制面积图

要在 Excel 工作表上绘制面积图，请使用 openpyxl.chart 子模块中的AreaChart class 。

import openpyxl
  
# import AreaChart class from openpyxl.chart sub_module
from openpyxl.chart import AreaChart,Reference
  
  
wb = openpyxl.Workbook()
sheet = wb.active
  
# write o to 9 in 1st column of the active sheet
for i in range(10):
    sheet.append([i])
  
values = Reference(sheet, min_col = 1, min_row = 1,
                         max_col = 1, max_row = 10)
  
# create object of AreaChart class
chart = AreaChart()
  
chart.add_data(values)
  
# set the title of the chart
chart.title = " AREA-CHART "
  
# set the title of the x-axis
chart.x_axis.title = " X-AXIS "
  
# set the title of the y-axis
chart.y_axis.title = " Y-AXIS "
  
# add chart to the sheet
# the top-left corner of a chart
# is anchored to cell E2 .
sheet.add_chart(chart, "E2")
  
# save the file
wb.save("AreaChart.xlsx")

输出：

代码 #4：绘制 3D 面积图

要在 Excel 工作表上绘制 3D 面积图，请使用 openpyxl.chart 子模块中的AreaChart3D class 。

import openpyxl
  
# import AreaChart3D class from openpyxl.chart sub_module
from openpyxl.chart import AreaChart3D,Reference
  
wb = openpyxl.Workbook()
sheet = wb.active
  
# write o to 9 in 1st column of the active sheet
for i in range(10):
    sheet.append([i])
  
values = Reference(sheet, min_col = 1, min_row = 1,
                         max_col = 1, max_row = 10)
  
# Create object of AreaChart3D class
chart = AreaChart3D()
  
chart.add_data(values)
  
# set the title of the chart
chart.title = " AREA-CHART3D "
  
# set the title of the x-axis
chart.x_axis.title = " X-AXIS "
  
# set the title of the y-axis
chart.y_axis.title = " Y-AXIS "
  
# add chart to the sheet
# the top-left corner of a chart
# is anchored to cell E2 .
sheet.add_chart(chart, "E2")
  
# save the file
wb.save("AreaChart3D.xlsx")

输出：

代码 #5：绘制折线图。
要在 Excel 工作表上绘制折线图，请使用 openpyxl.chart 子模块中的LineChart class 。

# import openpyxl module
import openpyxl
  
# import LineChart class from openpyxl.chart sub_module
from openpyxl.chart import LineChart,Reference
  
wb = openpyxl.Workbook()
sheet = wb.active
  
# write o to 9 in 1st column of the active sheet
for i in range(10):
    sheet.append([i])
  
values = Reference(sheet, min_col = 1, min_row = 1,
                         max_col = 1, max_row = 10)
  
# Create object of LineChart class
chart = LineChart()
  
chart.add_data(values)
  
# set the title of the chart
chart.title = " LINE-CHART "
  
# set the title of the x-axis
chart.x_axis.title = " X-AXIS "
  
# set the title of the y-axis
chart.y_axis.title = " Y-AXIS "
  
# add chart to the sheet
# the top-left corner of a chart
# is anchored to cell E2 .
sheet.add_chart(chart, "E2")
  
# save the file
wb.save("LineChart.xlsx")

输出：

代码 #6：绘制 3D 折线图。
为了在 Excel 工作表上绘制 3D 折线图，我们必须使用 openpyxl.chart 子模块中的LineChart3D class 。

import openpyxl
  
# import LineChart3D class from openpyxl.chart sub_module
from openpyxl.chart import LineChart3D,Reference
  
wb = openpyxl.Workbook()
sheet = wb.active
  
# write o to 9 in 1st column of the active sheet
for i in range(10):
    sheet.append([i])
  
values = Reference(sheet, min_col = 1, min_row = 1,
                         max_col = 1, max_row = 10)
  
# Create object of LineChart3D class
chart = LineChart3D()
  
chart.add_data(values)
  
# set the title of the chart
chart.title = " LINE-CHART3D "
  
  
# set the title of the x-axis
chart.x_axis.title = " X-AXIS "
  
# set the title of the y-axis
chart.y_axis.title = " Y-AXIS "
  
# add chart to the sheet
# the top-left corner of a chart
# is anchored to cell E2 .
sheet.add_chart(chart, "E2")
  
# save the file
wb.save("LineChart3D.xlsx")

输出：