Add point scene layer

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View a point scene layer from a scene service.

Screenshot of Add point scene layer sample

Use case

Point scene layers can efficiently display large amounts of point features. While point cloud layers can only display simple symbols, point scene layers can display any type of billboard symbol or even 3D models, as long as the location of the symbol can be described by a point. Points are cached and automatically thinned when zoomed out to improve performance.

How to use the sample

Pan around the scene and zoom in. Notice how many thousands of additional features appear at each successive zoom scale.

How it works

Create a Scene.
Create an ArcGISSceneLayer with the URL to a point scene layer service.
Add the layer to the scene's operational layers.

Relevant API

ArcGISSceneLayer

About the data

This dataset contains more than 40,000 points representing world airports. Points are retrieved on demand by the scene layer as the user navigates the scene.

Additional information

Point scene layers can also be retrieved from scene layer packages (.slpk) and mobile scene packages (.mspk).

Sample Code

AddPointSceneLayerView.swift
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// Copyright 2024 Esri
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import ArcGIS
import SwiftUI

struct AddPointSceneLayerView: View {
    /// A scene with scene layer of world airport locations.
    @State private var scene: ArcGIS.Scene = {
        let scene = Scene(basemapStyle: .arcGISImagery)

        // Creates the scene layer using a URL and adds it to the scene.
        let sceneLayer = ArcGISSceneLayer(url: .airportsPointSceneLayer)
        scene.addOperationalLayer(sceneLayer)

        // Adds an elevation source to display elevation on the scene's surface.
        let elevationSource = ArcGISTiledElevationSource(url: .worldElevationService)
        scene.baseSurface.addElevationSource(elevationSource)

        return scene
    }()

    var body: some View {
        // Displays the scene in a scene view.
        SceneView(scene: scene)
    }
}

private extension URL {
    /// A web URL to a scene layer with points at world airport locations.
    static var airportsPointSceneLayer: URL {
        URL(string: "https://tiles.arcgis.com/tiles/V6ZHFr6zdgNZuVG0/arcgis/rest/services/Airports_PointSceneLayer/SceneServer/layers/0")!
    }

    /// A web URL to the Terrain3D image server on ArcGIS REST.
    static var worldElevationService: URL {
        URL(string: "https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer")!
    }
}

#Preview {
    AddPointSceneLayerView()
}