RasterParticleLayer class

Particle animation driven by textures such as wind maps.

Inheritance

• Object
• Layer
• RasterParticleLayer

Annotations

• @experimental

Constructors

RasterParticleLayer({required String id, Visibility? visibility, List<Object>? visibilityExpression, List<Object>? filter, double? minZoom, double? maxZoom, String? slot, required String sourceId, String? sourceLayer, String? rasterParticleArrayBand, List<Object>? rasterParticleArrayBandExpression, int? rasterParticleColor, List<Object>? rasterParticleColorExpression, double? rasterParticleCount, List<Object>? rasterParticleCountExpression, double? rasterParticleFadeOpacityFactor, List<Object>? rasterParticleFadeOpacityFactorExpression, double? rasterParticleMaxSpeed, List<Object>? rasterParticleMaxSpeedExpression, double? rasterParticleResetRateFactor, List<Object>? rasterParticleResetRateFactorExpression, double? rasterParticleSpeedFactor, List<Object>? rasterParticleSpeedFactorExpression})

Properties

filter ↔ List<Object>?

An expression specifying conditions on source features. Only features that match the filter are displayed.

getter/setter pair, inherited

hashCode → int

The hash code for this object.

no setter, inherited

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

rasterParticleArrayBand ↔ String?

Displayed band of raster array source layer

getter/setter pair

rasterParticleArrayBandExpression ↔ List<Object>?

Displayed band of raster array source layer

getter/setter pair

rasterParticleColor ↔ int?

Defines a color map by which to colorize a raster particle layer, parameterized by the ["raster-particle-speed"] expression and evaluated at 256 uniformly spaced steps over the range specified by raster-particle-max-speed.

getter/setter pair

rasterParticleColorExpression ↔ List<Object>?

Defines a color map by which to colorize a raster particle layer, parameterized by the ["raster-particle-speed"] expression and evaluated at 256 uniformly spaced steps over the range specified by raster-particle-max-speed.

getter/setter pair

rasterParticleCount ↔ double?

Defines the amount of particles per tile. Default value: 512. Minimum value: 1.

getter/setter pair

rasterParticleCountExpression ↔ List<Object>?

Defines the amount of particles per tile. Default value: 512. Minimum value: 1.

getter/setter pair

rasterParticleFadeOpacityFactor ↔ double?

Defines defines the opacity coefficient applied to the faded particles in each frame. In practice, this property controls the length of the particle tail. Default value: 0.98. Value range: 0, 1

getter/setter pair

rasterParticleFadeOpacityFactorExpression ↔ List<Object>?

Defines defines the opacity coefficient applied to the faded particles in each frame. In practice, this property controls the length of the particle tail. Default value: 0.98. Value range: 0, 1

getter/setter pair

rasterParticleMaxSpeed ↔ double?

Defines the maximum speed for particles. Velocities with magnitudes equal to or exceeding this value are clamped to the max value. Default value: 1. Minimum value: 1.

getter/setter pair

rasterParticleMaxSpeedExpression ↔ List<Object>?

Defines the maximum speed for particles. Velocities with magnitudes equal to or exceeding this value are clamped to the max value. Default value: 1. Minimum value: 1.

getter/setter pair

rasterParticleResetRateFactor ↔ double?

Defines a coefficient for a time period at which particles will restart at a random position, to avoid degeneration (empty areas without particles). Default value: 0.8. Value range: 0, 1

getter/setter pair

rasterParticleResetRateFactorExpression ↔ List<Object>?

Defines a coefficient for a time period at which particles will restart at a random position, to avoid degeneration (empty areas without particles). Default value: 0.8. Value range: 0, 1

getter/setter pair

rasterParticleSpeedFactor ↔ double?

Defines a coefficient for the speed of particles’ motion. Default value: 0.2. Value range: 0, 1

getter/setter pair

rasterParticleSpeedFactorExpression ↔ List<Object>?

Defines a coefficient for the speed of particles’ motion. Default value: 0.2. Value range: 0, 1

getter/setter pair

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

visibilityExpression ↔ List<Object>?

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) → RasterParticleLayer