Spire.Office Knowledgebase Page 54 | E-iceblue

Pie charts and doughnut charts are two popular types of data visualization tools that are widely used to show the proportional distribution of categories within the whole. Both charts can serve as powerful communication aids, allowing viewers to quickly grasp the significance of each component and how it relates to the overall picture.

While pie charts and doughnut charts share many similarities, they also have unique characteristics that make them suitable for different analytical scenarios. In this article, you will learn how to create a pie chart or a doughnut chart in PowerPoint with Python using Spire.Presentation for Python.

Install Spire.Presentation for Python

This scenario requires Spire.Presentation for Python and plum-dispatch v1.7.4. They can be easily installed in your Windows through the following pip command.

pip install Spire.Presentation

If you are unsure how to install, please refer to this tutorial: How to Install Spire.Presentation for Python on Windows

Create a Pie Chart in PowerPoint with Python

Pie charts are designed to resemble a circle, which is divided into sections or "slices", with each slice representing a portion of the whole.

With Spire.Prensetion for Python, you can add a pie chart to a presentation slide using the ISlide.Shapes.AppendChartInit(type: ChartType, rectangle: RectangleF, init: bool) method and specify the chart type as Pie. The following are the detailed steps.

  • Create a Presentation instance.
  • Get the first slide using Prenstion.Slides[] property.
  • Add a pie chart at a specified location on the side using ISlide.Shapes.AppendChartInit(type: ChartType, rectangle RectangleF, init bool).
  • Set and format the chart title.
  • Define some data and append the data to the chart sheet as chart data using IChart.ChartData property.
  • Set series labels, category labels, series values and other attributes using the properties of the IChart class.
  • Set to show label value and percentage value.
  • Save the result file using Presentation.SaveToFile() method.
  • Python
from spire.presentation.common import *
from spire.presentation import *

# Create a Presentation instance
presentation = Presentation()

# Add a pie chart at a specified location on the first slide
rect = RectangleF.FromLTRB (40, 100, 590, 420)
chart = presentation.Slides[0].Shapes.AppendChartInit (ChartType.Pie, rect, False)

# Set and format chart title
chart.ChartTitle.TextProperties.Text = "Sales by Quarter"
chart.ChartTitle.TextProperties.IsCentered = True
chart.ChartTitle.Height = 30
chart.HasTitle = True

# Define some data
quarters = ["1st Qtr", "2nd Qtr", "3rd Qtr", "4th Qtr"]
sales = [210, 320, 180, 460]

# Append data to ChartData, which represents a data table where the chart data is stored
chart.ChartData[0,0].Text = "Quarters"
chart.ChartData[0,1].Text = "Sales"
i = 0
while i < len(quarters):
    chart.ChartData[i + 1,0].Text = quarters[i]
    chart.ChartData[i + 1,1].NumberValue = sales[i]
    i += 1

# Set series labels and category labels
chart.Series.SeriesLabel = chart.ChartData["B1","B1"]
chart.Categories.CategoryLabels = chart.ChartData["A2","A5"]

# Set values for series
chart.Series[0].Values = chart.ChartData["B2","B5"]

# Add data points to series
for i, unusedItem in enumerate(chart.Series[0].Values):
    cdp = ChartDataPoint(chart.Series[0])
    cdp.Index = i
    chart.Series[0].DataPoints.Add(cdp)

# Fill each data point with a different color
chart.Series[0].DataPoints.get_Item(0).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(0).Fill.SolidColor.Color = Color.get_RosyBrown()
chart.Series[0].DataPoints.get_Item(1).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(1).Fill.SolidColor.Color = Color.get_LightBlue()
chart.Series[0].DataPoints.get_Item(2).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(2).Fill.SolidColor.Color = Color.get_LightPink()
chart.Series[0].DataPoints.get_Item(3).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(3).Fill.SolidColor.Color = Color.get_MediumPurple()

# Set the data labels to display label value and percentage value
chart.Series[0].DataLabels.LabelValueVisible = True
chart.Series[0].DataLabels.PercentValueVisible = True

# Save the result file
presentation.SaveToFile("CreatePieChart.pptx", FileFormat.Pptx2016)
presentation.Dispose()

Python: Create a Pie Chart or a Doughnut Chart in PowerPoint

Create a Doughnut Chart in PowerPoint with Python

Doughnut charts are very similar to pie charts, with the primary difference being the presence of a "hole" in the center. This hole can be used to display additional information or to maintain a cleaner look.

To add a donut chart to a presentation slide, you can specify the ChartType parameter of ISlide.Shapes.AppendChartInit() method as Doughnut. The following are the detailed steps.

  • Create a Presentation instance.
  • Get the first slide using Prenstion.Slides[] property.
  • Add a doughnut chart at a specified location on the side using ISlide.Shapes.AppendChartInit(type: ChartType, rectangle: RectangleF, init: bool).
  • Define some data and append the data to the chart sheet as chart data using IChart.ChartData property.
  • Set series labels, category labels, series values and other attributes using the properties of the IChart class.
  • Set to show label value and percentage value.
  • Save the result file using Presentation.SaveToFile() method.
  • Python
from spire.presentation.common import *
from spire.presentation import *

# Create a Presentation instance
presentation = Presentation()

# Add a doughnut chart at a specified location on the first slide
rect = RectangleF.FromLTRB (80, 100, 630, 420)
chart = presentation.Slides[0].Shapes.AppendChartInit(ChartType.Doughnut, rect, False)

# Set and format chart title
chart.ChartTitle.TextProperties.Text = "Annual Report"
chart.ChartTitle.TextProperties.IsCentered = True
chart.ChartTitle.Height = 30

# Define some data
years = ["Year 2020", "Year 2021", "Year 2022", "Year 2023"]
sales = [16500, 28000, 43200, 60000]

# Append data to ChartData, which represents a data table where the chart data is stored
chart.ChartData[0,0].Text = "Quarters"
chart.ChartData[0,1].Text = "Sales"
i = 0
while i < len(years):
    chart.ChartData[i + 1,0].Text = years[i]
    chart.ChartData[i + 1,1].NumberValue = sales[i]
    i += 1

# Set series labels and category labels
chart.Series.SeriesLabel = chart.ChartData["B1","B1"]
chart.Categories.CategoryLabels = chart.ChartData["A2","A5"]

# Set values for series
chart.Series[0].Values = chart.ChartData["B2","B5"]

# Add data points to series
for i, item in enumerate(chart.Series[0].Values):
    cdp = ChartDataPoint(chart.Series[0])
    cdp.Index = i
    chart.Series[0].DataPoints.Add(cdp)

# Fill each data point with a different color
chart.Series[0].DataPoints.get_Item(0).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(0).Fill.SolidColor.Color = Color.get_LightBlue()
chart.Series[0].DataPoints.get_Item(1).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(1).Fill.SolidColor.Color = Color.get_MediumPurple()
chart.Series[0].DataPoints.get_Item(2).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(2).Fill.SolidColor.Color =  Color.get_DarkGray()
chart.Series[0].DataPoints.get_Item(3).Fill.FillType = FillFormatType.Solid
chart.Series[0].DataPoints.get_Item(3).Fill.SolidColor.Color = Color.get_DarkOrange()

# Set the data labels to display label value and percentage value
chart.Series[0].DataLabels.LabelValueVisible = True
chart.Series[0].DataLabels.PercentValueVisible = True

# Set the hole size of the doughnut chart
chart.Series[0].DoughnutHoleSize = 50

# Save the result file
presentation.SaveToFile("DoughnutChart.pptx", FileFormat.Pptx2016)
presentation.Dispose()

Python: Create a Pie Chart or a Doughnut Chart in PowerPoint

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Python: Reorder PDF Pages

2024-03-18 01:40:17 Written by Koohji

Typically, the content of a PDF document needs to follow a logical flow, such as a report is usually structured with chapters, sections, and subsections. When the pages within a PDF are not arranged in the correct sequence, the coherence of the document will be affected. By reordering the pages, you can ensure that the information is presented in a clear and understandable manner. In this article, you will learn how to reorder the pages in a PDF file with Python using Spire.PDF for Python.

Install Spire.PDF for Python

This scenario requires Spire.PDF for Python and plum-dispatch v1.7.4. They can be easily installed in your Windows through the following pip command.

pip install Spire.PDF

If you are unsure how to install, please refer to this tutorial: How to Install Spire.PDF for Python on Windows

Reorder PDF Pages with Python

Spire.PDF for Python provides the PdfDocument.Pages.ReArrange(orderArray: List[int]) method to rearrange the pages in a PDF file. The parameter orderArray is a list of integers which allows you to reorder the PDF pages by specifying the page index in the desired order.

The following are the detailed steps to rearrange the PDF page order with Python:

  • Create a PdfDocument instance.
  • Load a sample PDF file using PdfDocument.LoadFromFile() method.
  • Rearrange the page order of the PDF file using PdfDocument.Pages.ReArrange(orderArray: List[int]) method.
  • Save the result file using PdfDocument.SaveToFile() method.
  • Python
from spire.pdf.common import *
from spire.pdf import *

inputFile = "Report.pdf"
outputFile = "RearrangePDFPageOrder.pdf"

# Create a PdfDocument instance 
pdf = PdfDocument()

# Load a PDF file
pdf.LoadFromFile(inputFile)

# Reorder pages in the PDF file
pdf.Pages.ReArrange([3, 2, 0, 1])

# Save the result file
pdf.SaveToFile(outputFile, FileFormat.PDF)
pdf.Close()

Python: Reorder PDF Pages

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

For data analysis and reporting, visual aesthetics play a significant role in presenting information effectively. When working with Excel worksheets, the ability to set background colors and images enhances the overall readability and impact of the data. By leveraging the power of Python, developers can effortlessly manipulate Excel files and customize the appearance of their worksheets. This article demonstrates how to use Spire.XLS for Python to set the background color and image for Excel worksheets with Python programs.

Install Spire.XLS for Python

This scenario requires Spire.XLS for Python and plum-dispatch v1.7.4. They can be easily installed in your Windows through the following pip command.

pip install Spire.XLS

If you are unsure how to install, please refer to: How to Install Spire.XLS for Python on Windows

Set the Background Color for an Excel Worksheet

With Spire.XLS for Python, developers can set the background color for a specified cell range through CellRange.Style.Color property. The detailed steps for setting the background color for the used cell range in a worksheet are as follows:

  • Create an instance of Workbook class.
  • Load an Excel workbook using Workbook.LoadFromFile() method.
  • Get a worksheet using Workbook.Worksheets.get_Item() method.
  • Get the used range in the worksheet through Worksheet.AllocatedRange property.
  • Set the background color of the used range through CellRange.Style.Color property.
  • Save the workbook using Workbook.SaveToFile() method.
  • Python
from spire.xls import *
from spire.xls.common import *

# Create an instance of Workbook class
wb = Workbook()

# Load an Excel file
wb.LoadFromFile("Sample.xlsx")

# Get a worksheet
sheet = wb.Worksheets.get_Item(0)

# Get the used range of the worksheet
usedRange = sheet.AllocatedRange

# Set the background color of the used range to a light and soft color
usedRange.Style.Color = Color.FromRgb(144, 238, 144)

# Save the workbook
wb.SaveToFile("output/ExcelBackgroundColor.xlsx", FileFormat.Version2016)
wb.Dispose()

Python: Set the Background Color and Image for Excel Worksheets

Set the Background Image for an Excel Worksheet

Setting a background image for an Excel worksheet can be accomplished through PageSetup class. Using the Worksheet.PageSetup.BackgroundImage property, developers can set the image background for the entire worksheet. Detailed steps are as follows:

  • Create an instance of Workbook class.
  • Load an Excel workbook using Workbook.LoadFromFile() method.
  • Get a worksheet using Workbook.Worksheets.get_Item() method.
  • Load an image using Stream() method.
  • Set the background image of the worksheet through Worksheet.PageSetup.BackgroundImage property.
  • Save the workbook using Workbook.SaveToFile() method.
  • Python
from spire.xls import *
from spire.xls.common import *

# Create an instance of Workbook class
wb = Workbook()

# Load an Excel file
wb.LoadFromFile("Sample.xlsx")

# Get a worksheet
sheet = wb.Worksheets.get_Item(0)

# Load an image
image = Stream("BackgroundImage.jpg")

# Set the background of the worksheet
sheet.PageSetup.BackgoundImage = image

# Save the workbook
wb.SaveToFile("output/ExcelBackgroundImage.xlsx", FileFormat.Version2016)
wb.Dispose()

Python: Set the Background Color and Image for Excel Worksheets

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

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