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HeatmapLayer classgoogle.maps.visualization.HeatmapLayer class
Deprecated: The Heatmap Layer functionality in the Maps JavaScript API is no longer supported. This API was deprecated in May 2025 and will be made unavailable in a later version of the Maps JavaScript API, releasing in May 2026. For more info, see https://developers.google.com/maps/deprecations).
A layer that provides a client-side rendered heatmap, depicting the intensity of data at geographical points.
This class extends MVCObject.
Access by calling const {HeatmapLayer} = await google.maps.importLibrary("visualization").
See Libraries in the Maps JavaScript API.
google.maps.visualization.HeatmapLayerOptions interface
This object defines the properties that can be set on a HeatmapLayer object.
data optional Type: MVCArray<LatLng|WeightedLocation>|Array<LatLng|WeightedLocation> optional
The data points to display. Required.
dissipating optional
Type: boolean optional
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.
gradient optional 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.
map optional Type: Map optional
The map on which to display the layer.
maxIntensity optional
Type: number optional
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.
opacity optional
Type: number optional
Default: 0.6
The opacity of the heatmap, expressed as a number between 0 and 1.
radius optional
Type: number optional
The radius of influence for each data point, in pixels.
WeightedLocation interfacegoogle.maps.visualization.WeightedLocation interface
A data point entry for a heatmap. This is a geographical data point with a weight attribute.
Propertieslocation Type: LatLng
The location of the data point.
weight
Type: number
The weighting value of the data point.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2025-07-09 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-09 UTC."],[],[]]
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