Skip To Content ArcGIS for Developers Sign In Dashboard

ArcGIS Runtime SDK for .NET

View point cloud data offline

This code sample is available for these platforms:
View Sample on GitHub

Display local 3D point cloud data.

Use case

Point clouds are often used to visualize massive sets of sensor data such as lidar. The point locations indicate where the sensor data was measured spatially, and the color or size of the points indicate the measured/derived value of the sensor reading. In the case of lidar, the color of the visualized point could be the color of the reflected light, so that the point cloud forms a true color 3D image of the area.

Point clouds can be loaded offline from scene layer packages (.slpk).

How it works

  1. Create a PointCloudLayer with the path to a local .slpk file containing a point cloud layer.
  2. Add the layer to a scene's operational layers collection.

Relevant API

  • PointCloudLayer

About the data

This point cloud data comes from Balboa Park in San Diego, California. Created and provided by USGS.

Tags

3D, point cloud, lidar

Sample Code

<UserControl
    x:Class="ArcGISRuntime.UWP.Samples.ViewPointCloudDataOffline.ViewPointCloudDataOffline"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls">
    <Grid>
        <esriUI:SceneView x:Name="MySceneView" />
    </Grid>
</UserControl>
// 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.

using ArcGISRuntime.Samples.Managers;
using Esri.ArcGISRuntime.Mapping;
using System;

namespace ArcGISRuntime.UWP.Samples.ViewPointCloudDataOffline
{
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        "View point cloud data offline",
        "Data",
        "Display local 3D point cloud data.",
        "")]
    [ArcGISRuntime.Samples.Shared.Attributes.OfflineData("34da965ca51d4c68aa9b3a38edb29e00")]
    public partial class ViewPointCloudDataOffline
    {
        // Hold the URL to the elevation service.
        private const string ElevationServiceUrl = "https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer";

        public ViewPointCloudDataOffline()
        {
            InitializeComponent();
            Initialize();
        }

        private async void Initialize()
        {
            // Create the scene with basemap.
            MySceneView.Scene = new Scene(Basemap.CreateImagery());

            // Create a surface and add the elevation service to it.
            Surface groundSurface = new Surface();
            groundSurface.ElevationSources.Add(new ArcGISTiledElevationSource(new Uri(ElevationServiceUrl)));

            // Add the surface to the scene.
            MySceneView.Scene.BaseSurface = groundSurface;

            // Get the path to the local point cloud data.
            string pointCloudPath = DataManager.GetDataFolder("34da965ca51d4c68aa9b3a38edb29e00", "sandiego-north-balboa-pointcloud.slpk");

            // Create the point cloud layer.
            PointCloudLayer balboaPointCloud = new PointCloudLayer(new Uri(pointCloudPath));

            // Add the point cloud to the scene.
            MySceneView.Scene.OperationalLayers.Add(balboaPointCloud);

            // Wait for the layer to load.
            await balboaPointCloud.LoadAsync();

            // Zoom to the extent of the point cloud.
            await MySceneView.SetViewpointAsync(new Viewpoint(balboaPointCloud.FullExtent));
        }
    }
}