Module: ol/layer/Heatmap

ol/layer/Heatmap

Classes

Heatmap

Type Definitions

Options{Object}

Properties:

Name	Type	Argument	Default	Description
`className`	string	<optional>	'ol-layer'	A CSS class name to set to the layer element.
`opacity`	number	<optional>	1	Opacity (0, 1).
`visible`	boolean	<optional>	true	Visibility.
`extent`	Extent	<optional>		The bounding extent for layer rendering. The layer will not be rendered outside of this extent.
`zIndex`	number	<optional>		The z-index for layer rendering. At rendering time, the layers will be ordered, first by Z-index and then by position. When `undefined`, a `zIndex` of 0 is assumed for layers that are added to the map's `layers` collection, or `Infinity` when the layer's `setMap()` method was used.
`minResolution`	number	<optional>		The minimum resolution (inclusive) at which this layer will be visible.
`maxResolution`	number	<optional>		The maximum resolution (exclusive) below which this layer will be visible.
`minZoom`	number	<optional>		The minimum view zoom level (exclusive) above which this layer will be visible.
`maxZoom`	number	<optional>		The maximum view zoom level (inclusive) at which this layer will be visible.
`gradient`	Array.<string>	<optional>	['#00f', '#0ff', '#0f0', '#ff0', '#f00']	The color gradient of the heatmap, specified as an array of CSS color strings.
`radius`	number	<optional>	8	Radius size in pixels.
`blur`	number	<optional>	15	Blur size in pixels.
`weight`	string \| function	<optional>	'weight'	The feature attribute to use for the weight or a function that returns a weight from a feature. Weight values should range from 0 to 1 (and values outside will be clamped to that range).
`source`	VectorSource<Point>	<optional>		Point source.
`properties`	Object.<string, *>	<optional>		Arbitrary observable properties. Can be accessed with `#get()` and `#set()`.