OpenLayers v7.3.0 API - Module: ol/control/ScaleLine

Options{Object}

Name	Type	Argument	Default	Description
`className`	string	<optional>		CSS class name. The default is `ol-scale-bar` when configured with `bar: true`. Otherwise the default is `ol-scale-line`.
`minWidth`	number	<optional>	64	Minimum width in pixels at the OGC default dpi. The width will be adjusted to match the dpi used.
`maxWidth`	number	<optional>		Maximum width in pixels at the OGC default dpi. The width will be adjusted to match the dpi used.
`render`	function	<optional>		Function called when the control should be re-rendered. This is called in a `requestAnimationFrame` callback.
`target`	HTMLElement \| string	<optional>		Specify a target if you want the control to be rendered outside of the map's viewport.
`units`	Units	<optional>	'metric'	Units.
`bar`	boolean	<optional>	false	Render scalebars instead of a line.
`steps`	number	<optional>	4	Number of steps the scalebar should use. Use even numbers for best results. Only applies when `bar` is `true`.
`text`	boolean	<optional>	false	Render the text scale above of the scalebar. Only applies when `bar` is `true`.
`dpi`	number \| undefined	<optional>		dpi of output device such as printer. Only applies when `bar` is `true`. If undefined the OGC default screen pixel size of 0.28mm will be assumed.

Units{'degrees'} {'imperial'} {'nautical'} {'metric'} {'us'}

Units for the scale line.