mapsglmaps/com.xweather.mapsgl.layers.spec/HeatmapLayerDescriptor

HeatmapLayerDescriptor

data class HeatmapLayerDescriptor(var id: String, var source: String, var sourceLayer: String? = null, var paint: HeatmapLayerPaint = HeatmapLayerPaint( heatmap = HeatmapPaint() ), var filter: Expression? = null) : VectorLayerDescriptor<HeatmapLayerPaint> , LayerEventEmitter

Descriptor for a Mapbox heatmap layer: point density visualized as a color ramp, backed by vector or GeoJSON point data.

Add the source first, then com.xweather.mapsgl.map.MapController.addLayer. paint (HeatmapLayerPaint) maps to Mapbox heatmap-color, heatmap-weight, heatmap-intensity, heatmap-radius, and heatmap-opacity.

Use sourceLayer for MVT point layers; null for GeoJSON when the source is a single feature collection of points.

See also

Constructors

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constructor(id: String, source: String, sourceLayer: String? = null, paint: HeatmapLayerPaint = HeatmapLayerPaint( heatmap = HeatmapPaint() ), filter: Expression? = null)

Properties

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open override var filter: Expression?

Optional feature filter.

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open override var id: String

Unique layer id.

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open override var paint: HeatmapLayerPaint

Heatmap ramp, radius, intensity, and weight.

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open override var source: String

Point-capable vector or GeoJSON source id.

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open override var sourceLayer: String?

MVT layer name, or null for GeoJSON.

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open override val type: LayerType

Functions

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open override fun off(eventName: String)
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open override fun on(eventName: String, callback: (Any?) -> Unit)
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open override fun trigger(eventName: String, data: Any?)