Components / Charts / API

CategoryAxisLabels

The configuration options of the category axis labels.

background? string

The background color of the labels. Accepts a valid CSS color string, including hex and rgb.

border? Border

The border of the labels.

color? string

The text color of the labels. Accepts a valid CSS color string, including hex and rgb.

content? (e: any) => string

The function which returns the label content.
You can split the text into multiple lines by using the line feed characters ("\n").

The available fields in the function argument are:

  • value—The category value.
  • dataItem—The data item if a field is specified. If the category does not have a corresponding item in the data, an empty object is passed.
  • format—The default format of the label.
  • culture—The default culture (if set) of the label.

culture? string

The culture to use when formatting date values.
The specified culture must be loaded as demonstrated in the Internationalization Overview.

dateFormats? DateFormats

The format for displaying the labels of the date category axis.
The {0} placeholder represents the category value.
The Chart selects the appropriate format for the current categoryAxis.baseUnit option.
Setting the categoryAxis.labels.format option overrides the date formats.
For more information, refer to the format method of IntlService.

Not supported for Radar Charts. Use categoryAxis.labels.format instead.

font? string

The font style of the labels.

format? string

The format for displaying the labels. Uses the format method of IntlService.
Contains one placeholder ("{0}") which represents the category value.

margin? Margin | number

The margin of the labels. A numeric value sets all margins.

mirror? boolean

If set to true, the Chart mirrors the axis labels and ticks. If the labels are normally on the
left side of the axis, the mirroring of the axis renders them to the right.

padding? Padding | number

The padding of the labels. A numeric value sets all paddings.

position AxisLabelsPosition

The position of the axis labels. By default, labels are positioned next to the axis.

  • When position is set to end, the labels are placed at the end of the crossing axis— typically, at the top or right end of the Chart unless the crossing axis was reversed.
  • When position is set to start, the labels are placed at the start of the crossing axis— typically, at the left or bottom end of the Chart unless the crossing axis was reversed.

rotation? LabelRotation | number | "auto"

The rotation angle of the labels. By default, the labels are not rotated.
If the axis is horizontal, can be set to "auto".
In this case, the labels are rotated
only if the slot size is not sufficient for the entire labels.

skip? number

The number of labels to skip. By default, no labels are skipped.

step? number

The rendering step of the label—renders every nth label. By default, every label is rendered.

visible? boolean

If set to true, the Chart displays the category axis labels.
By default, the category axis labels are visible.

visual? (e: AxisLabelVisualArgs) => Element

A function for creating a custom visual for the labels.

The available argument fields are:

  • createVisual—A function for getting the default visual.
  • culture—The default culture (if set) on the label.
  • dataItem—The data item if a field is specified.
  • format—The default format of the label.
  • options—The label options.
  • rect—The geometry Rect that defines where the visual has to be rendered.
  • sender—The Chart instance (might be undefined).
  • text—The label text.
  • value—The category value.