# Customize Doughnut Charts in Presentations with Python

> Discover how to create and customize doughnut charts in Aspose.Slides for Python via .NET, supporting PowerPoint and OpenDocument formats for dynamic presentations.

Source: https://docs.aspose.com/slides/python-net/doughnut-chart/
Updated: 2026-08-02


## **Overview**

This article shows how to work with a doughnut chart in Aspose.Slides by adding the chart to a slide, setting the size of its center hole, and saving the presentation. It focuses on the `doughnut_hole_size` setting and demonstrates the basic steps required to customize this chart type in code.

It also includes a short FAQ covering related doughnut-chart scenarios, such as using multiple series to create multiple rings, working with exploded doughnut charts, and exporting a chart as a raster image or SVG.

## **Specify Center Gap in Doughnut Chart**
In order to specify the size of the hole in a doughnut chart. Please follow the steps below:

- Instantiate [Presentation](https://reference.aspose.com/slides/python-net/aspose.slides/presentation/) class.
- Add doughnut chart on the slide.
- Specify the size of the hole in a doughnut chart.
- Write presentation to disk.

In the example given below, we have set the size of the hole in a doughnut chart.

```py
import aspose.slides.charts as charts
import aspose.slides as slides

# Create an instance of Presentation class
with slides.Presentation() as presentation:

    chart = presentation.slides[0].shapes.add_chart(charts.ChartType.DOUGHNUT, 50, 50, 400, 400)
    chart.chart_data.series_groups[0].doughnut_hole_size = 90

    # Write presentation to disk
    presentation.save("DoughnutHoleSize_out.pptx", slides.export.SaveFormat.PPTX)
```

## **FAQ**

### Can I create a multi-level doughnut with multiple rings?

Yes. Add multiple series to a single doughnut chart—each series becomes a separate ring. The ring order is determined by the order of the series in the collection.

### Is an "exploded" doughnut (separated slices) supported?

Yes. There is an Exploded Doughnut [chart type](https://reference.aspose.com/slides/python-net/aspose.slides.charts/charttype/) and an explosion property on data points; you can separate individual slices.

### How can I get an image of a doughnut chart (PNG/SVG) for a report?

A chart is a shape; you can render it to a [raster image](https://reference.aspose.com/slides/python-net/aspose.slides/shape/get_image/) or export the chart to an [SVG image](https://reference.aspose.com/slides/python-net/aspose.slides/shape/write_as_svg/).