HeatmapLayer class

A heatmap.

Inheritance

• Object
• Layer
• HeatmapLayer

Constructors

HeatmapLayer({required String id, Visibility? visibility, double? minZoom, double? maxZoom, String? slot, required String sourceId, String? sourceLayer, int? heatmapColor, double? heatmapIntensity, double? heatmapOpacity, double? heatmapRadius, double? heatmapWeight})

Properties

hashCode → int

The hash code for this object.

no setter, inherited

heatmapColor ↔ int?

Defines the color of each pixel based on its density value in a heatmap. Should be an expression that uses ["heatmap-density"] as input.

getter/setter pair

heatmapIntensity ↔ double?

Similar to heatmap-weight but controls the intensity of the heatmap globally. Primarily used for adjusting the heatmap based on zoom level.

getter/setter pair

heatmapOpacity ↔ double?

The global opacity at which the heatmap layer will be drawn.

getter/setter pair

heatmapRadius ↔ double?

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.

getter/setter pair

heatmapWeight ↔ double?

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.

getter/setter pair

id ↔ String

The ID of the Layer.

getter/setter pair, inherited

maxZoom ↔ double?

The maximum zoom level for the layer. At zoom levels equal to or greater than the maxzoom, the layer will be hidden.

getter/setter pair, inherited

minZoom ↔ double?

The minimum zoom level for the layer. At zoom levels less than the minzoom, the layer will be hidden.

getter/setter pair, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

slot ↔ String?

The slot this layer is assigned to. If specified, and a slot with that name exists, it will be placed at that position in the layer order.

getter/setter pair, inherited

sourceId ↔ String

The id of the source.

getter/setter pair

sourceLayer ↔ String?

A source layer is an individual layer of data within a vector source. A vector source can have multiple source layers.

getter/setter pair

visibility ↔ Visibility?

The visibility of the layer.

getter/setter pair, inherited

Methods

getType() → String

Get the type of current layer as a String.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

decode(String properties) → HeatmapLayer