Learn how to add features from a feature service to a scene .
Features are a type of geographic data that contain a geometry and attributes . They are typically hosted in an ArcGIS feature service . You can query a feature service to return features formatted as GeoJSON.
This tutorial explains how to get features from a feature service with ArcGIS REST JS, then display them in your CesiumJS application as a Geopoints , lines , and polygons .
The three layers you will use are:
Prerequisites You need an ArcGIS Developer or ArcGIS Online account to access the developer dashboard and create an API key .
Steps Create a new pen To get started, either complete the Display a scene tutorial or use this pen . Set the API key To access location services , you need an API key or OAuth 2.0 access token . To learn how to create and scope your key, visit the Create an API key tutorial.
Go to your dashboard to get an API key. The API key must be scoped to access the services used in this tutorial.
In CodePen , update api to use your key. Update cesium to use your Cesium ion access token .
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const apiKey = "YOUR_API_KEY" ;
Cesium.ArcGisMapService.defaultAccessToken = apiKey;
const cesiumAccessToken = "YOUR_CESIUM_ACCESS_TOKEN" ;
Cesium.Ion.defaultAccessToken = cesiumAccessToken;
const arcGisImagery = Cesium.ArcGisMapServerImageryProvider.fromBasemapType(Cesium.ArcGisBaseMapType.SATELLITE);
const viewer = new Cesium.Viewer( "cesiumContainer" , {
baseLayer : Cesium.ImageryLayer.fromProviderAsync(arcGisImagery),
});
Add references to ArcGIS REST JS In the <head> element, reference the feature-servicerequest
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< script src = "https://cesium.com/downloads/cesiumjs/releases/1.105/Build/Cesium/Cesium.js" > </ script >
< link href = "https://cesium.com/downloads/cesiumjs/releases/1.105/Build/Cesium/Widgets/widgets.css" rel = "stylesheet" >
< script src = "https://unpkg.com/@esri/arcgis-rest-request@4.0.0/dist/bundled/request.umd.js" > </ script >
< script src = "https://unpkg.com/@esri/arcgis-rest-feature-service@4.0.0/dist/bundled/feature-service.umd.js" > </ script >
In the <body>, create an arcgisfeature service .
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const apiKey = "YOUR_API_KEY" ;
Cesium.ArcGisMapService.defaultAccessToken = apiKey;
const authentication = arcgisRest.ApiKeyManager.fromKey(apiKey);
Add point features Point features are typically displayed on top of all other layers. Use arcgisTrailheads feature service and add features to the scene as GeoJSON.
Go to the Trailheads URL and browse the properties of the layer. Make note of the layer's Name , Type , and Fields .
In CodePen , define a variable to store the URL of the feature service.
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const pointLayerName = "Trailheads" ;
const pointLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +pointLayerName+ "/FeatureServer/0" ;
Call the arcgisf property to geojson to format the response as GeoJSON.
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const pointLayerName = "Trailheads" ;
const pointLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +pointLayerName+ "/FeatureServer/0" ;
arcgisRest.queryFeatures({
url : pointLayerURL,
authentication,
f : "geojson"
}).then( ( response ) => {
});
Add the service response service to the scene as a Geoclamp property to clamp the features to terrain.
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const pointLayerName = "Trailheads" ;
const pointLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +pointLayerName+ "/FeatureServer/0" ;
arcgisRest.queryFeatures({
url : pointLayerURL,
authentication,
f : "geojson"
}).then( ( response ) => {
const data = Cesium.GeoJsonDataSource.load(response,{
clampToGround : true
})
viewer.dataSources.add(data);
});
Add polyline features Line features are typically displayed below points . Use arcgisTrails feature service and add features to the scene as GeoJSON.
Go to the Trails URL and browse the properties of the layer. Make note of the layer's Name , Type , and Fields .
In CodePen , define a variable to store the URL of the feature service.
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const lineLayerName = "Trails" ;
const lineLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +lineLayerName+ "/FeatureServer/0" ;
Call the arcgisf property to geojson to format the response as GeoJSON.
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const lineLayerName = "Trails" ;
const lineLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +lineLayerName+ "/FeatureServer/0" ;
arcgisRest.queryFeatures({
url : lineLayerURL,
authentication,
f : "geojson"
}).then( ( response ) => {
});
Add the service response service to your scene as a Geoclamp property to clamp the features to terrain.
Expand
Use dark colors for code blocks
Add line. Add line. Add line. Add line.
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const lineLayerName = "Trails" ;
const lineLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +lineLayerName+ "/FeatureServer/0" ;
arcgisRest.queryFeatures({
url : lineLayerURL,
authentication,
f : "geojson"
}).then( ( response ) => {
const data = Cesium.GeoJsonDataSource.load(response,{
clampToGround : true
})
viewer.dataSources.add(data);
});
Add polygon features Polygon features are typically displayed below lines and points . Use arcgisParks and Open Spaces feature service and add features to the scene as GeoJSON.
Go to the Parks and Open Spaces URL and browse the properties of the layer. Make note of the layer's Name , Type , and Fields .
In CodePen , define a variable to store the URL of the feature service.
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const polygonLayerName = "Parks_and_Open_Space" ;
const polygonLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +polygonLayerName+ "/FeatureServer/0" ;
Call the arcgisf property to geojson to format the response as GeoJSON.
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const polygonLayerName = "Parks_and_Open_Space" ;
const polygonLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +polygonLayerName+ "/FeatureServer/0" ;
arcgisRest.queryFeatures({
url : polygonLayerURL,
authentication,
f : "geojson"
}).then( ( response ) => {
});
Add the service response service to your scene as a Geoclamp property to clamp the features to terrain.
Expand
Use dark colors for code blocks
Add line. Add line. Add line. Add line.
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const polygonLayerName = "Parks_and_Open_Space" ;
const polygonLayerURL = "https://services3.arcgis.com/GVgbJbqm8hXASVYi/arcgis/rest/services/" +polygonLayerName+ "/FeatureServer/0" ;
arcgisRest.queryFeatures({
url : polygonLayerURL,
authentication,
f : "geojson"
}).then( ( response ) => {
const data = Cesium.GeoJsonDataSource.load(response,{
clampToGround : true
})
viewer.dataSources.add(data);
});
Run the app In CodePen , run your code to display the map.
Your map should display the locations of trailheads, trails, and open spaces in the Santa Monica Mountains.
What's next? Learn how to use additional ArcGIS location services in these tutorials:
