---
title: "fillextrusion.MTFillExtrusionLayer | Mobile sdk | Mobile sdk android | Android"
description: "MTFillExtrusionLayer"
---

# fillextrusion.MTFillExtrusionLayer

@Serializable

class [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/) : [MTLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer/-m-t-layer/)

A fill-extrusion style layer renders one or more filled (and optionally stroked) extruded (3D) polygons on a map.

You can use a fill-extrusion layer to configure the extrusion and visual appearance of polygon or multipolygon features.

Members

## Constructors

[MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/-m-t-fill-extrusion-layer/)

constructor(identifier: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html), sourceIdentifier: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html))

constructor(identifier: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html), sourceIdentifier: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html), maxZoom: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html), minZoom: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html), sourceLayer: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html))

constructor(identifier: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html), type: [MTLayerType](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer/-m-t-layer-type/), sourceIdentifier: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html), maxZoom: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?, minZoom: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?, sourceLayer: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)?, base: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?, color: [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)?, height: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?, opacity: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?, pattern: [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)?, translate: [DoubleArray](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double-array/index.html)?, translateAnchor: [MTFillExtrusionTranslateAnchor](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-translate-anchor/)?, verticalGradient: [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)?, visibility: [MTLayerVisibility](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer/-m-t-layer-visibility/))

## Properties

[base](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/base/)

var [base](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/base/): [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?

The height with which to extrude the base of this layer. Units in meters. Must be ≤ height. Defaults to 0. Requires [height](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/height/).

[color](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/color/)

@Serializable(with = [ColorAsHexSerializer::class](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fill/-color-as-hex-serializer/))

var [color](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/color/): [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)?

The base color of the extruded fill. Defaults to black. Note: If specified as rgba with alpha, alpha is ignored; use [opacity](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/opacity/).

[height](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/height/)

var [height](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/height/): [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?

The height with which to extrude this layer. Units in meters. Defaults to 0.

[identifier](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/identifier/)

@SerialName(value = "id")

open override var [identifier](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/identifier/): [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)

Unique layer identifier.

[maxZoom](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/max-zoom/)

@SerialName(value = "maxzoom")

open override var [maxZoom](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/max-zoom/): [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?

The maximum zoom level for the layer. Optional number between 0 and 24.

[minZoom](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/min-zoom/)

@SerialName(value = "minzoom")

open override var [minZoom](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/min-zoom/): [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?

The minimum zoom level for the layer. Optional number between 0 and 24.

[opacity](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/opacity/)

var [opacity](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/opacity/): [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)?

The opacity of the entire fill extrusion layer. Optional number between 0 and 1 inclusive. Defaults to 1.

[pattern](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/pattern/)

var [pattern](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/pattern/): [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)?

Name of image in sprite to use for drawing images on extruded fills.

[sourceIdentifier](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/source-identifier/)

@SerialName(value = "source")

open override var [sourceIdentifier](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/source-identifier/): [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)

Identifier of the source to be used for this layer.

[sourceLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/source-layer/)

@SerialName(value = "source-layer")

open override var [sourceLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/source-layer/): [String](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html)?

Vector tile source layer name, if applicable. Required for vector tile sources.

[translate](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/translate/)

var [translate](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/translate/): [DoubleArray](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double-array/index.html)?

The geometry’s offset. Units in pixels. Values are x, y where negatives indicate left and up, respectively. Defaults to 0,0.

[translateAnchor](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/translate-anchor/)

var [translateAnchor](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/translate-anchor/): [MTFillExtrusionTranslateAnchor](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-translate-anchor/)?

Controls the frame of reference for translate. Defaults to map.

[type](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/type/)

open override var [type](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/type/): [MTLayerType](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer/-m-t-layer-type/)

Type of the layer.

[verticalGradient](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/vertical-gradient/)

var [verticalGradient](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/vertical-gradient/): [Boolean](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html)?

Whether to apply a vertical gradient to the sides of a fill-extrusion layer. Defaults to true.

[visibility](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/visibility/)

var [visibility](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/visibility/): [MTLayerVisibility](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer/-m-t-layer-visibility/)

Whether this layer is displayed.

## Functions

[baseConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/base-const/)

fun [baseConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/base-const/)(value: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[baseExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/base-expr/)

fun [baseExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/base-expr/)(expr: [PropertyValue](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.dsl/-property-value/)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[colorConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/color-const/)

fun [colorConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/color-const/)(color: [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[colorExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/color-expr/)

fun [colorExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/color-expr/)(expr: [PropertyValue](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.dsl/-property-value/)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[heightConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/height-const/)

fun [heightConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/height-const/)(value: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[heightExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/height-expr/)

fun [heightExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/height-expr/)(expr: [PropertyValue](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.dsl/-property-value/)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[opacityConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/opacity-const/)

fun [opacityConst](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/opacity-const/)(value: [Double](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-double/index.html)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[opacityExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/opacity-expr/)

fun [opacityExpr](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/opacity-expr/)(expr: [PropertyValue](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.dsl/-property-value/)): [MTFillExtrusionLayer](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/)

[withFilter](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/with-filter/)

fun [withFilter](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fillextrusion/-m-t-fill-extrusion-layer/with-filter/)(expr: [PropertyValue](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.dsl/-property-value/))