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ArcGIS REST Feature Service

 

Example of using an ArcGIS REST Feature Service with a Tile strategy.

This example loads new features from ArcGIS REST Feature Service when the view extent changes.

index.html<!DOCTYPE html>
<html lang="en">
  <head>
    <title>ArcGIS REST Feature Service</title>
    <!-- The line below is only needed for old environments like Internet Explorer and Android 4.x -->
    <script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
    <script src="https://code.jquery.com/jquery-2.2.3.min.js"></script>
    <style>
      .map {
        width: 100%;
        height:400px;
      }
    </style>
  </head>
  <body>
    <div id="map" class="map"></div>
    <div id="info">&nbsp;</div>
    <script src="index.js"></script>
  </body>
</html>
index.jsimport 'ol/ol.css';
import Map from 'ol/Map';
import View from 'ol/View';
import EsriJSON from 'ol/format/EsriJSON';
import {Tile as TileLayer, Vector as VectorLayer} from 'ol/layer';
import {tile as tileStrategy} from 'ol/loadingstrategy';
import {fromLonLat} from 'ol/proj';
import VectorSource from 'ol/source/Vector';
import XYZ from 'ol/source/XYZ';
import {Fill, Stroke, Style} from 'ol/style';
import {createXYZ} from 'ol/tilegrid';


var serviceUrl = 'https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/' +
    'Petroleum/KSFields/FeatureServer/';
var layer = '0';

var esrijsonFormat = new EsriJSON();

var styleCache = {
  'ABANDONED': new Style({
    fill: new Fill({
      color: 'rgba(225, 225, 225, 255)'
    }),
    stroke: new Stroke({
      color: 'rgba(0, 0, 0, 255)',
      width: 0.4
    })
  }),
  'GAS': new Style({
    fill: new Fill({
      color: 'rgba(255, 0, 0, 255)'
    }),
    stroke: new Stroke({
      color: 'rgba(110, 110, 110, 255)',
      width: 0.4
    })
  }),
  'OIL': new Style({
    fill: new Fill({
      color: 'rgba(56, 168, 0, 255)'
    }),
    stroke: new Stroke({
      color: 'rgba(110, 110, 110, 255)',
      width: 0
    })
  }),
  'OILGAS': new Style({
    fill: new Fill({
      color: 'rgba(168, 112, 0, 255)'
    }),
    stroke: new Stroke({
      color: 'rgba(110, 110, 110, 255)',
      width: 0.4
    })
  })
};

var vectorSource = new VectorSource({
  loader: function(extent, resolution, projection) {
    var url = serviceUrl + layer + '/query/?f=json&' +
        'returnGeometry=true&spatialRel=esriSpatialRelIntersects&geometry=' +
        encodeURIComponent('{"xmin":' + extent[0] + ',"ymin":' +
            extent[1] + ',"xmax":' + extent[2] + ',"ymax":' + extent[3] +
            ',"spatialReference":{"wkid":102100}}') +
        '&geometryType=esriGeometryEnvelope&inSR=102100&outFields=*' +
        '&outSR=102100';
    $.ajax({url: url, dataType: 'jsonp', success: function(response) {
      if (response.error) {
        alert(response.error.message + '\n' +
            response.error.details.join('\n'));
      } else {
        // dataProjection will be read from document
        var features = esrijsonFormat.readFeatures(response, {
          featureProjection: projection
        });
        if (features.length > 0) {
          vectorSource.addFeatures(features);
        }
      }
    }});
  },
  strategy: tileStrategy(createXYZ({
    tileSize: 512
  }))
});

var vector = new VectorLayer({
  source: vectorSource,
  style: function(feature) {
    var classify = feature.get('activeprod');
    return styleCache[classify];
  }
});

var raster = new TileLayer({
  source: new XYZ({
    attributions: 'Tiles © <a href="https://services.arcgisonline.com/ArcGIS/' +
        'rest/services/World_Topo_Map/MapServer">ArcGIS</a>',
    url: 'https://server.arcgisonline.com/ArcGIS/rest/services/' +
        'World_Topo_Map/MapServer/tile/{z}/{y}/{x}'
  })
});

var map = new Map({
  layers: [raster, vector],
  target: document.getElementById('map'),
  view: new View({
    center: fromLonLat([-97.6114, 38.8403]),
    zoom: 7
  })
});

var displayFeatureInfo = function(pixel) {
  var features = [];
  map.forEachFeatureAtPixel(pixel, function(feature) {
    features.push(feature);
  });
  if (features.length > 0) {
    var info = [];
    var i, ii;
    for (i = 0, ii = features.length; i < ii; ++i) {
      info.push(features[i].get('field_name'));
    }
    document.getElementById('info').innerHTML = info.join(', ') || '(unknown)';
    map.getTarget().style.cursor = 'pointer';
  } else {
    document.getElementById('info').innerHTML = '&nbsp;';
    map.getTarget().style.cursor = '';
  }
};

map.on('pointermove', function(evt) {
  if (evt.dragging) {
    return;
  }
  var pixel = map.getEventPixel(evt.originalEvent);
  displayFeatureInfo(pixel);
});

map.on('click', function(evt) {
  displayFeatureInfo(evt.pixel);
});
package.json{
  "name": "vector-esri",
  "dependencies": {
    "ol": "6.1.1"
  },
  "devDependencies": {
    "parcel": "1.11.0"
  },
  "scripts": {
    "start": "parcel index.html",
    "build": "parcel build --experimental-scope-hoisting --public-url . index.html"
  }
}