甜甜圈图(也称为“甜甜圈图”)是饼图的一种变体,但它的中心有一个圆孔,使其看起来像甜甜圈,因此得名。此空白区域可用于显示其他数据。
# import xlsxwriter module import xlsxwriter # Workbook() takes one, non-optional, argument which is the filename #that we want to create. workbook = xlsxwriter.Workbook('chart_doughnut1.xlsx') # The workbook object is then used to add new worksheet via the #add_worksheet() method. worksheet = workbook.add_worksheet() # Create a new Format object to formats cells in worksheets using # add_format() method . # here we create bold format object . bold = workbook.add_format({'bold': 1}) # Add the worksheet data that the charts will refer to. headings = ['Category', 'Values'] data = [ ['Glazed', 'Chocolate', 'Cream'], [50, 35, 15], ] # Write a row of data starting from 'A1' with bold format . worksheet.write_row('A1', headings, bold) # Write a column of data starting from 'A2', 'B2' respectively . worksheet.write_column('A2', data[0]) worksheet.write_column('B2', data[1]) # Create a chart object that can be added to a worksheet using #add_chart() method. # here we create a doughnut chart object . chart1 = workbook.add_chart({'type': 'doughnut'}) # Add a data series to a chart using add_series method. # Configure the first series.syntax to define ranges # [sheetname, first_row, first_col, last_row, last_col]. chart1.add_series({ 'name': 'Doughnut sales data', 'categories': ['Sheet1', 1, 0, 3, 0], 'values': ['Sheet1', 1, 1, 3, 1], }) # Add a chart title chart1.set_title({'name': 'Popular Doughnut Types'}) # Set an Excel chart style. Colors with white outline and shadow. chart1.set_style(10) # add chart to the worksheet with an offset,at the top-left corner #of a chart is anchored to cell C2. worksheet.insert_chart('C2', chart1, {'x_offset': 25, 'y_offset': 10}) # Finally, close the Excel file via the close() method. workbook.close()