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Heatmaps

HeatmapLayer class

google.maps.visualization.HeatmapLayer class

A layer that provides a client-side rendered heatmap, depicting the intensity of data at geographical points.

This class extends MVCObject.

Access by callingconst {HeatmapLayer} = await google.maps.importLibrary( "visualization" ).SeeLibraries in the Maps JavaScript API.

Constructor
`HeatmapLayer`	`HeatmapLayer([opts])` Parameters: `opts`:`HeatmapLayerOptionsoptional` Creates a new instance of`HeatmapLayer`.

Methods
`getData`	`getData()` Parameters:None Return Value:`MVCArray<LatLng\|WeightedLocation>` Returns the data points currently displayed by this heatmap.
`getMap`	`getMap()` Parameters:None Return Value:`Map\|undefined`
`setData`	`setData(data)` Parameters: `data`:`MVCArray<LatLng\|WeightedLocation>\|Array<LatLng\|WeightedLocation>` Return Value:None Sets the data points to be displayed by this heatmap.
`setMap`	`setMap(map)` Parameters: `map`:`Mapoptional` Return Value:None Renders the heatmap on the specified map. If map is set to`null`,the heatmap will be removed.
`setOptions`	`setOptions(options)` Parameters: `options`:`HeatmapLayerOptionsoptional` Return Value:None
Inherited: `addListener`, `bindTo`, `get`, `notify`, `set`, `setValues`, `unbind`, `unbindAll`

HeatmapLayerOptions interface

google.maps.visualization.HeatmapLayerOptions interface

This object defines the properties that can be set on aHeatmapLayerobject.

Properties
`dataoptional`	Type:`MVCArray<LatLng\|WeightedLocation>\|Array<LatLng\|WeightedLocation>optional` The data points to display. Required.
`dissipatingoptional`	Type:`booleanoptional` Specifies whether heatmaps dissipate on zoom. By default, the radius of influence of a data point is specified by the radius option only. When dissipating is disabled, the radius option is interpreted as a radius at zoom level 0.
`gradientoptional`	Type:`Array<string>optional` The color gradient of the heatmap, specified as an array of CSS color strings. All CSS3 colors are supported except for extended named colors.
`mapoptional`	Type:`Mapoptional` The map on which to display the layer.
`maxIntensityoptional`	Type:`numberoptional` The maximum intensity of the heatmap. By default, heatmap colors are dynamically scaled according to the greatest concentration of points at any particular pixel on the map. This property allows you to specify a fixed maximum.
`opacityoptional`	Type:`numberoptional` Default:`0.6` The opacity of the heatmap, expressed as a number between 0 and 1.
`radiusoptional`	Type:`numberoptional` The radius of influence for each data point, in pixels.

WeightedLocation interface

google.maps.visualization.WeightedLocation interface

A data point entry for a heatmap. This is a geographical data point with a weight attribute.

Properties
`location`	Type:`LatLng` The location of the data point.
`weight`	Type:`number` The weighting value of the data point.

Heatmaps

HeatmapLayer class

Constructor

Methods

HeatmapLayerOptions interface

Properties

WeightedLocation interface

Properties