145 lines
4.0 KiB
JavaScript
145 lines
4.0 KiB
JavaScript
import Map from '../src/ol/Map.js';
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import View from '../src/ol/View.js';
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import EsriJSON from '../src/ol/format/EsriJSON.js';
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import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
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import {tile as tileStrategy} from '../src/ol/loadingstrategy.js';
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import {fromLonLat} from '../src/ol/proj.js';
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import VectorSource from '../src/ol/source/Vector.js';
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import XYZ from '../src/ol/source/XYZ.js';
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import Fill from '../src/ol/style/Fill.js';
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import Stroke from '../src/ol/style/Stroke.js';
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import Style from '../src/ol/style/Style.js';
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import {createXYZ} from '../src/ol/tilegrid.js';
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const serviceUrl = 'https://sampleserver3.arcgisonline.com/ArcGIS/rest/services/' +
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'Petroleum/KSFields/FeatureServer/';
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const layer = '0';
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const esrijsonFormat = new EsriJSON();
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const styleCache = {
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'ABANDONED': new Style({
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fill: new Fill({
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color: 'rgba(225, 225, 225, 255)'
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}),
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stroke: new Stroke({
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color: 'rgba(0, 0, 0, 255)',
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width: 0.4
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})
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}),
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'GAS': new Style({
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fill: new Fill({
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color: 'rgba(255, 0, 0, 255)'
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}),
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stroke: new Stroke({
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color: 'rgba(110, 110, 110, 255)',
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width: 0.4
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})
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}),
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'OIL': new Style({
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fill: new Fill({
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color: 'rgba(56, 168, 0, 255)'
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}),
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stroke: new Stroke({
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color: 'rgba(110, 110, 110, 255)',
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width: 0
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})
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}),
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'OILGAS': new Style({
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fill: new Fill({
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color: 'rgba(168, 112, 0, 255)'
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}),
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stroke: new Stroke({
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color: 'rgba(110, 110, 110, 255)',
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width: 0.4
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})
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})
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};
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const vectorSource = new VectorSource({
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loader: function(extent, resolution, projection) {
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const url = serviceUrl + layer + '/query/?f=json&' +
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'returnGeometry=true&spatialRel=esriSpatialRelIntersects&geometry=' +
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encodeURIComponent('{"xmin":' + extent[0] + ',"ymin":' +
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extent[1] + ',"xmax":' + extent[2] + ',"ymax":' + extent[3] +
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',"spatialReference":{"wkid":102100}}') +
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'&geometryType=esriGeometryEnvelope&inSR=102100&outFields=*' +
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'&outSR=102100';
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$.ajax({url: url, dataType: 'jsonp', success: function(response) {
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if (response.error) {
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alert(response.error.message + '\n' +
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response.error.details.join('\n'));
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} else {
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// dataProjection will be read from document
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const features = esrijsonFormat.readFeatures(response, {
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featureProjection: projection
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});
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if (features.length > 0) {
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vectorSource.addFeatures(features);
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}
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}
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}});
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},
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strategy: tileStrategy(createXYZ({
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tileSize: 512
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}))
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});
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const vector = new VectorLayer({
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source: vectorSource,
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style: function(feature) {
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const classify = feature.get('activeprod');
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return styleCache[classify];
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}
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});
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const raster = new TileLayer({
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source: new XYZ({
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attributions: 'Tiles © <a href="https://services.arcgisonline.com/ArcGIS/' +
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'rest/services/World_Topo_Map/MapServer">ArcGIS</a>',
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url: 'https://server.arcgisonline.com/ArcGIS/rest/services/' +
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'World_Topo_Map/MapServer/tile/{z}/{y}/{x}'
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})
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});
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const map = new Map({
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layers: [raster, vector],
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target: document.getElementById('map'),
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view: new View({
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center: fromLonLat([-97.6114, 38.8403]),
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zoom: 7
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})
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});
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const displayFeatureInfo = function(pixel) {
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const features = [];
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map.forEachFeatureAtPixel(pixel, function(feature) {
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features.push(feature);
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});
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if (features.length > 0) {
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const info = [];
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let i, ii;
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for (i = 0, ii = features.length; i < ii; ++i) {
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info.push(features[i].get('field_name'));
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}
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document.getElementById('info').innerHTML = info.join(', ') || '(unknown)';
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map.getTarget().style.cursor = 'pointer';
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} else {
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document.getElementById('info').innerHTML = ' ';
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map.getTarget().style.cursor = '';
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}
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};
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map.on('pointermove', function(evt) {
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if (evt.dragging) {
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return;
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}
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const pixel = map.getEventPixel(evt.originalEvent);
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displayFeatureInfo(pixel);
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});
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map.on('click', function(evt) {
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displayFeatureInfo(evt.pixel);
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});
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