## ### HeatmapLayer is a style layer that renders one or more filled circles on the map. ### props | Prop | Type | Default | Required | Description | | ---- | :--: | :-----: | :------: | :----------: | | id | `string` | `none` | `true` | A string that uniquely identifies the source in the style to which it is added. | | sourceID | `string` | `MapboxGL.StyleSource.DefaultSourceID` | `false` | The source from which to obtain the data to style.
If the source has not yet been added to the current style, the behavior is undefined.
Inferred from parent source only if the layer is a direct child to it. | | sourceLayerID | `string` | `none` | `false` | Identifier of the layer within the source identified by the sourceID property
from which the receiver obtains the data to style. | | aboveLayerID | `string` | `none` | `false` | Inserts a layer above aboveLayerID. | | belowLayerID | `string` | `none` | `false` | Inserts a layer below belowLayerID | | layerIndex | `number` | `none` | `false` | Inserts a layer at a specified index | | filter | `array` | `none` | `false` | Filter only the features in the source layer that satisfy a condition that you define | | minZoomLevel | `number` | `none` | `false` | The minimum zoom level at which the layer gets parsed and appears. | | maxZoomLevel | `number` | `none` | `false` | The maximum zoom level at which the layer gets parsed and appears. | | style | `union` | `none` | `false` | Customizable style attributes | ### styles * visibility
* heatmapRadius
* heatmapWeight
* heatmapIntensity
* heatmapColor
* heatmapOpacity
___ #### visibility Name: `visibility` #### Description Whether this layer is displayed. #### Type `enum` #### Default Value `visible` #### Supported Values **visible** - The layer is shown.
**none** - The layer is not shown.
___ #### heatmapRadius Name: `heatmapRadius` #### Description Radius of influence of one heatmap point in pixels. Increasing the value makes the heatmap smoother, but less detailed. `queryRenderedFeatures` on heatmap layers will return points within this radius. #### Type `number` #### Default Value `30` #### Units `pixels` #### Minimum `1` #### Expression Parameters: `zoom, feature, feature-state` ___ #### Name `heatmapRadiusTransition` #### Description The transition affecting any changes to this layer’s heatmapRadius propery. #### Type `{ duration, delay }` #### Units `milliseconds` #### Default Value `{duration: 300, delay: 0}` ___ #### heatmapWeight Name: `heatmapWeight` #### Description A measure of how much an individual point contributes to the heatmap. A value of 10 would be equivalent to having 10 points of weight 1 in the same spot. Especially useful when combined with clustering. #### Type `number` #### Default Value `1` #### Minimum `0` #### Expression Parameters: `zoom, feature, feature-state` ___ #### heatmapIntensity Name: `heatmapIntensity` #### Description Similar to `heatmapWeight` but controls the intensity of the heatmap globally. Primarily used for adjusting the heatmap based on zoom level. #### Type `number` #### Default Value `1` #### Minimum `0` #### Expression Parameters: `zoom` ___ #### Name `heatmapIntensityTransition` #### Description The transition affecting any changes to this layer’s heatmapIntensity propery. #### Type `{ duration, delay }` #### Units `milliseconds` #### Default Value `{duration: 300, delay: 0}` ___ #### heatmapColor Name: `heatmapColor` #### Description Defines the color of each pixel based on its density value in a heatmap. Should be an expression that uses `["heatmapDensity"]` as input. #### Type `color` #### Default Value `interpolate,linear,heatmap-density,0,rgba(0, 0, 255, 0),0.1,royalblue,0.3,cyan,0.5,lime,0.7,yellow,1,red` #### Expression Parameters: `heatmap-density` ___ #### heatmapOpacity Name: `heatmapOpacity` #### Description The global opacity at which the heatmap layer will be drawn. #### Type `number` #### Default Value `1` #### Minimum `0` #### Maximum `1` #### Expression Parameters: `zoom` ___ #### Name `heatmapOpacityTransition` #### Description The transition affecting any changes to this layer’s heatmapOpacity propery. #### Type `{ duration, delay }` #### Units `milliseconds` #### Default Value `{duration: 300, delay: 0}`