Configures the annotation settings for a chart to highlight or provide additional information about specific points or regions.
Options to improve accessibility for chart annotation elements.
string
The content of the annotation, which also accepts the ID of the custom element.
Defaults to null
Specifies the coordinate units of the annotation. The options are:
Defaults to ‘Pixel’
string
A description for the annotation that provides additional information about its content for screen readers.
Defaults to null
Specifies the alignment of the annotation. The options are:
Defaults to ‘Center’
Specifies the regions of the annotation. The options are:
Defaults to ‘Chart’
Specifies the position of the annotation. The options are
Defaults to ‘Middle’
string
| Date
| number
If coordinateUnit
is set to Pixel
, x specifies the pixel value.
If coordinateUnit
is set to Point
, x specifies the axis value.
Defaults to ‘0’
string
The name of the horizontal axis associated with the annotation.
Requires the axes
of the chart.
Defaults to null
string
| number
If coordinateUnit
is set to Pixel
, y specifies the pixel value.
If coordinateUnit
is set to Point
, y specifies the axis value.
Defaults to ‘0’
string
The name of the vertical axis associated with the annotation.
Requires the axes
of the chart.
Defaults to null