RasterLayer class

Raster map textures such as satellite imagery.

Inheritance

• Object
• Layer
• RasterLayer

Constructors

RasterLayer({required String id, Visibility? visibility, List<Object>? visibilityExpression, List<Object>? filter, double? minZoom, double? maxZoom, String? slot, required String sourceId, String? sourceLayer, String? rasterArrayBand, List<Object>? rasterArrayBandExpression, double? rasterBrightnessMax, List<Object>? rasterBrightnessMaxExpression, double? rasterBrightnessMin, List<Object>? rasterBrightnessMinExpression, int? rasterColor, List<Object>? rasterColorExpression, List<double?>? rasterColorMix, List<Object>? rasterColorMixExpression, List<double?>? rasterColorRange, List<Object>? rasterColorRangeExpression, double? rasterContrast, List<Object>? rasterContrastExpression, double? rasterElevation, List<Object>? rasterElevationExpression, double? rasterEmissiveStrength, List<Object>? rasterEmissiveStrengthExpression, double? rasterFadeDuration, List<Object>? rasterFadeDurationExpression, double? rasterHueRotate, List<Object>? rasterHueRotateExpression, double? rasterOpacity, List<Object>? rasterOpacityExpression, RasterResampling? rasterResampling, List<Object>? rasterResamplingExpression, double? rasterSaturation, List<Object>? rasterSaturationExpression})

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

rasterArrayBand ↔ String?

Displayed band of raster array source layer. Defaults to the first band if not set.

getter/setter pair

rasterArrayBandExpression ↔ List<Object>?

Displayed band of raster array source layer. Defaults to the first band if not set.

getter/setter pair

rasterBrightnessMax ↔ double?

Increase or reduce the brightness of the image. The value is the maximum brightness. Default value: 1. Value range: 0, 1

getter/setter pair

rasterBrightnessMaxExpression ↔ List<Object>?

Increase or reduce the brightness of the image. The value is the maximum brightness. Default value: 1. Value range: 0, 1

getter/setter pair

rasterBrightnessMin ↔ double?

Increase or reduce the brightness of the image. The value is the minimum brightness. Default value: 0. Value range: 0, 1

getter/setter pair

rasterBrightnessMinExpression ↔ List<Object>?

Increase or reduce the brightness of the image. The value is the minimum brightness. Default value: 0. Value range: 0, 1

getter/setter pair

rasterColor ↔ int?

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

getter/setter pair

rasterColorExpression ↔ List<Object>?

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

getter/setter pair

rasterColorMix ↔ List<double?>?

When raster-color is active, specifies the combination of source RGB channels used to compute the raster value. Computed using the equation mix.r - src.r + mix.g - src.g + mix.b - src.b + mix.a. The first three components specify the mix of source red, green, and blue channels, respectively. The fourth component serves as a constant offset and is -not- multipled by source alpha. Source alpha is instead carried through and applied as opacity to the colorized result. Default value corresponds to RGB luminosity. Default value: 0.2126,0.7152,0.0722,0.

getter/setter pair

rasterColorMixExpression ↔ List<Object>?

When raster-color is active, specifies the combination of source RGB channels used to compute the raster value. Computed using the equation mix.r - src.r + mix.g - src.g + mix.b - src.b + mix.a. The first three components specify the mix of source red, green, and blue channels, respectively. The fourth component serves as a constant offset and is -not- multipled by source alpha. Source alpha is instead carried through and applied as opacity to the colorized result. Default value corresponds to RGB luminosity. Default value: 0.2126,0.7152,0.0722,0.

getter/setter pair

rasterColorRange ↔ List<double?>?

When raster-color is active, specifies the range over which raster-color is tabulated. Units correspond to the computed raster value via raster-color-mix. For rasterarray sources, if raster-color-range is unspecified, the source's stated data range is used.

getter/setter pair

rasterColorRangeExpression ↔ List<Object>?

When raster-color is active, specifies the range over which raster-color is tabulated. Units correspond to the computed raster value via raster-color-mix. For rasterarray sources, if raster-color-range is unspecified, the source's stated data range is used.

getter/setter pair

rasterContrast ↔ double?

Increase or reduce the contrast of the image. Default value: 0. Value range: -1, 1

getter/setter pair

rasterContrastExpression ↔ List<Object>?

Increase or reduce the contrast of the image. Default value: 0. Value range: -1, 1

getter/setter pair

rasterElevation ↔ double?

Specifies an uniform elevation from the ground, in meters. Default value: 0. Minimum value: 0.

getter/setter pair

rasterElevationExpression ↔ List<Object>?

Specifies an uniform elevation from the ground, in meters. Default value: 0. Minimum value: 0.

getter/setter pair

rasterEmissiveStrength ↔ double?

Controls the intensity of light emitted on the source features. Default value: 0. Minimum value: 0.

getter/setter pair

rasterEmissiveStrengthExpression ↔ List<Object>?

Controls the intensity of light emitted on the source features. Default value: 0. Minimum value: 0.

getter/setter pair

rasterFadeDuration ↔ double?

Fade duration when a new tile is added. Default value: 300. Minimum value: 0.

getter/setter pair

rasterFadeDurationExpression ↔ List<Object>?

Fade duration when a new tile is added. Default value: 300. Minimum value: 0.

getter/setter pair

rasterHueRotate ↔ double?

Rotates hues around the color wheel. Default value: 0.

getter/setter pair

rasterHueRotateExpression ↔ List<Object>?

Rotates hues around the color wheel. Default value: 0.

getter/setter pair

rasterOpacity ↔ double?

The opacity at which the image will be drawn. Default value: 1. Value range: 0, 1

getter/setter pair

rasterOpacityExpression ↔ List<Object>?

The opacity at which the image will be drawn. Default value: 1. Value range: 0, 1

getter/setter pair

rasterResampling ↔ RasterResampling?

The resampling/interpolation method to use for overscaling, also known as texture magnification filter Default value: "linear".

getter/setter pair

rasterResamplingExpression ↔ List<Object>?

The resampling/interpolation method to use for overscaling, also known as texture magnification filter Default value: "linear".

getter/setter pair

rasterSaturation ↔ double?

Increase or reduce the saturation of the image. Default value: 0. Value range: -1, 1

getter/setter pair

rasterSaturationExpression ↔ List<Object>?

Increase or reduce the saturation of the image. Default value: 0. Value range: -1, 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) → RasterLayer