MTHeatmapLayer

@Serializable
class MTHeatmapLayer : MTLayer

A heatmap style layer renders a range of colors to represent the density of points in an area.

Supports color ramps and expressions for intensity, radius, opacity, and weight.

Constructors

constructor(identifier: String, sourceIdentifier: String)
constructor(identifier: String, sourceIdentifier: String, maxZoom: Double, minZoom: Double, sourceLayer: String)
constructor(identifier: String, type: MTLayerType, sourceIdentifier: String, maxZoom: Double?, minZoom: Double?, sourceLayer: String?, color: StyleValue?, intensity: StyleValue?, opacity: StyleValue?, radius: StyleValue?, weight: StyleValue?, visibility: MTLayerVisibility)

Properties

var color: StyleValue?

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

@SerialName(value = "id")
open override var identifier: String

Unique layer identifier.

var intensity: StyleValue?

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

@SerialName(value = "maxzoom")
open override var maxZoom: Double?

The maximum zoom level for the layer.

@SerialName(value = "minzoom")
open override var minZoom: Double?

The minimum zoom level for the layer.

var opacity: StyleValue?

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

var radius: StyleValue?

Radius of influence of one heatmap point in pixels. Increasing the value makes the heatmap smoother, but less detailed.

@SerialName(value = "source")
open override var sourceIdentifier: String

Identifier of the source to be used for this layer.

@SerialName(value = "source-layer")
open override var sourceLayer: String?

Vector tile source layer name, if applicable.

open override var type: MTLayerType

Type of the layer.

var visibility: MTLayerVisibility

Whether this layer is displayed.

var weight: StyleValue?

A measure of how much an individual point contributes to the heatmap.

Functions