While graph visualisations reveal the story hidden behind the data, annotations provide the means to share this narrative with the outside world.

Users can interact with the chart, analyse it, and then use KeyLines annotations to highlight the most important insights.

Annotations can be seamlessly integrated with any application design and customised to offer any user interaction, so that users can annotate charts directly inside the application.

KeyLines annotations are always readable and can be positioned relatively to their subjects or using world coordinates. You can style them in the Annotations API and create text fields, buttons and other user interface controls by adding custom labels and glyphs.

To provide context for charts shared in documents or presentations, you can export annotated charts into multiple formats with chart.export().

See our Annotations documentation for more details.

Key functions used:

• chart.export
• chart.labelPosition
• chart.serialize
• chart.viewCoordinates
• chart.getWorldAnnotationPosition
• chart.getRelativeAnnotationPosition
• Annotations API