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62 lines
2.0 KiB
Markdown
62 lines
2.0 KiB
Markdown
# Title
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The chart title defines text to draw at the top of the chart.
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## Title Configuration
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The title configuration is passed into the `options.title` namespace. The global options for the chart title is defined in `Chart.defaults.title`.
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| Name | Type | Default | Description
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| ---- | ---- | ------- | -----------
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| `display` | `boolean` | `false` | Is the title shown?
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| `position` | `string` | `'top'` | Position of title. [more...](#position)
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| `fontSize` | `number` | `12` | Font size.
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| `fontFamily` | `string` | `"'Helvetica Neue', 'Helvetica', 'Arial', sans-serif"` | Font family for the title text.
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| `fontColor` | `Color` | `'#666'` | Font color.
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| `fontStyle` | `string` | `'bold'` | Font style.
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| `padding` | <code>number|{top: number, bottom: number}</code> | `10` | Adds padding above and below the title text if a single number is specified. It is also possible to change top and bottom padding separately.
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| `lineHeight` | <code>number|string</code> | `1.2` | Height of an individual line of text. See [MDN](https://developer.mozilla.org/en-US/docs/Web/CSS/line-height).
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| `text` | <code>string|string[]</code> | `''` | Title text to display. If specified as an array, text is rendered on multiple lines.
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### Position
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Possible title position values are:
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* `'top'`
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* `'left'`
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* `'bottom'`
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* `'right'`
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## Example Usage
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The example below would enable a title of 'Custom Chart Title' on the chart that is created.
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```javascript
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var chart = new Chart(ctx, {
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type: 'line',
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data: data,
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options: {
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title: {
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display: true,
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text: 'Custom Chart Title'
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}
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}
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});
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```
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This example shows how to specify separate top and bottom title text padding:
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```javascript
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var chart = new Chart(ctx, {
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type: 'line',
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data: data,
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options: {
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title: {
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display: true,
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text: 'Custom Chart Title',
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padding: {
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top: 10,
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bottom: 30
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}
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}
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}
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});
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```
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