72 lines
2.1 KiB
JavaScript
72 lines
2.1 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 {
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equalTo as equalToFilter,
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like as likeFilter,
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and as andFilter
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} from '../src/ol/format/filter.js';
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import {WFS, GeoJSON} from '../src/ol/format.js';
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import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
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import XYZ from '../src/ol/source/XYZ.js';
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import VectorSource from '../src/ol/source/Vector.js';
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import {Stroke, Style} from '../src/ol/style.js';
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const vectorSource = new VectorSource();
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const vector = new VectorLayer({
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source: vectorSource,
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style: new Style({
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stroke: new Stroke({
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color: 'rgba(0, 0, 255, 1.0)',
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width: 2
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})
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})
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});
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const key = 'get_your_own_D6rA4zTHduk6KOKTXzGB';
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const attributions = '<a href="https://www.maptiler.com/copyright/" target="_blank">© MapTiler</a> ' +
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'<a href="https://www.openstreetmap.org/copyright" target="_blank">© OpenStreetMap contributors</a>';
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const raster = new TileLayer({
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source: new XYZ({
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attributions: attributions,
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url: 'https://api.maptiler.com/tiles/satellite/{z}/{x}/{y}.jpg?key=' + key,
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maxZoom: 20
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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: [-8908887.277395891, 5381918.072437216],
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maxZoom: 19,
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zoom: 12
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})
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});
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// generate a GetFeature request
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const featureRequest = new WFS().writeGetFeature({
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srsName: 'EPSG:3857',
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featureNS: 'http://openstreemap.org',
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featurePrefix: 'osm',
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featureTypes: ['water_areas'],
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outputFormat: 'application/json',
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filter: andFilter(
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likeFilter('name', 'Mississippi*'),
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equalToFilter('waterway', 'riverbank')
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)
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});
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// then post the request and add the received features to a layer
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fetch('https://ahocevar.com/geoserver/wfs', {
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method: 'POST',
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body: new XMLSerializer().serializeToString(featureRequest)
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}).then(function(response) {
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return response.json();
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}).then(function(json) {
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const features = new GeoJSON().readFeatures(json);
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vectorSource.addFeatures(features);
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map.getView().fit(vectorSource.getExtent());
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});
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