Add a point scene layer

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Sample viewer app

View a point scene layer from a scene service.

Add a 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

  1. Create an AGSScene object.
  2. Create an AGSArcGISSceneLayer object with the URL to a point scene layer service.
  3. Add the layer to the scene's operational layers collection.

Relevant API

  • AGSArcGISSceneLayer

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).

Tags

3D, layers, point scene layer

Sample Code

AddPointSceneLayerViewController.swift
                                                         
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//
// Copyright © 2019 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
//
//   http://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 UIKit
import ArcGIS

class AddPointSceneLayerViewController: UIViewController {
    @IBOutlet var sceneView: AGSSceneView! {
        didSet {
            sceneView.scene = makeScene()
        }
    }

    /// Creates a scene with an point scene layer.
    ///
    /// - Returns: A new `AGSScene` object.
    func makeScene() -> AGSScene {
        let scene = AGSScene(basemapType: .imagery)

        // Create the elevation source.
        let elevationServiceURL = URL(string: "https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer")!
        let elevationSource = AGSArcGISTiledElevationSource(url: elevationServiceURL)

        // Create the surface and add it to the scene.
        let surface = AGSSurface()
        surface.elevationSources = [elevationSource]
        scene.baseSurface = surface

        /// Add a point scene layer with points at world airport locations
        let pointSceneLayerURL = URL(string: "https://tiles.arcgis.com/tiles/V6ZHFr6zdgNZuVG0/arcgis/rest/services/Airports_PointSceneLayer/SceneServer/layers/0")!
        // scene layer
        let sceneLayer = AGSArcGISSceneLayer(url: pointSceneLayerURL)
        scene.operationalLayers.add(sceneLayer)

        return scene
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        // add the source code button item to the right of navigation bar
        (self.navigationItem.rightBarButtonItem as! SourceCodeBarButtonItem).filenames = ["AddPointSceneLayerViewController"]
    }
}

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