> For the complete documentation index, see [llms.txt](https://swimlane.gitbook.io/ngx-charts/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swimlane.gitbook.io/ngx-charts/examples/pie-charts/pie-chart.md).

# Pie Chart

## Pie Chart

{% embed url="<https://stackblitz.com/edit/swimlane-pie-chart?embed=1&file=app/app.component.ts>" %}

## Inputs

| Property        | Type        | Default Value | Description                                                                                                      |
| --------------- | ----------- | ------------- | ---------------------------------------------------------------------------------------------------------------- |
| view            | number\[]   |               | the dimensions of the chart \[width, height]. If left undefined, the chart will fit to the parent container size |
| results         | object\[]   |               | the chart data                                                                                                   |
| scheme          | object      |               | the color scheme of the chart                                                                                    |
| customColors    | object      |               | custom colors for the chart. Used to override a color for a specific value                                       |
| animations      | boolean     | true          | enable animations                                                                                                |
| labels          | boolean     | false         | show or hide the labels                                                                                          |
| labelFormatting | function    |               | function that formats the label text                                                                             |
| trimLabels      | boolean     | true          | trim the labels beyond a certain maximum length                                                                  |
| maxLabelLength  | number      | 10            | maximum length of the labels. If `trimLabels` is `true`, labels over this length will be trimmed                 |
| legend          | boolean     | true          | show or hide the legend                                                                                          |
| legendTitle     | string      | 'Legend'      | the legend title                                                                                                 |
| legendPosition  | string      | 'right'       | the legend position \['right', 'below']                                                                          |
| explodeSlices   | boolean     | false         | make the radius of each slice proportional to it's value                                                         |
| doughnut        | boolean     | false         | should doughnut instead of pie slices                                                                            |
| arcWidth        | number      | 0.25          | arc width, expressed as a fraction of outer radius                                                               |
| gradient        | boolean     | false         | fill elements with a gradient instead of a solid color                                                           |
| activeEntries   | object\[]   | \[]           | elements to highlight                                                                                            |
| tooltipDisabled | boolean     | false         | show or hide the tooltip                                                                                         |
| tooltipText     | function    |               | a function that formats the tooltip                                                                              |
| tooltipTemplate | TemplateRef |               | a custom ng-template to be displayed inside the tooltip                                                          |

## Outputs

| Property   | Description                              |
| ---------- | ---------------------------------------- |
| select     | click event                              |
| activate   | element activation event (mouse enter)   |
| deactivate | element deactivation event (mouse leave) |

## Data Format

The data format is single series:

```
[
  {
    "name": "Germany",
    "value": 8940000
  },
  {
    "name": "USA",
    "value": 5000000
  }
]
```


---

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