/
vector-wfs-getfeature.js
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vector-wfs-getfeature.js
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import Map from '../src/ol/Map.js';
import VectorSource from '../src/ol/source/Vector.js';
import View from '../src/ol/View.js';
import XYZ from '../src/ol/source/XYZ.js';
import {GeoJSON, WFS} from '../src/ol/format.js';
import {Stroke, Style} from '../src/ol/style.js';
import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
import {
and as andFilter,
equalTo as equalToFilter,
like as likeFilter,
} from '../src/ol/format/filter.js';
const vectorSource = new VectorSource();
const vector = new VectorLayer({
source: vectorSource,
style: new Style({
stroke: new Stroke({
color: 'rgba(0, 0, 255, 1.0)',
width: 2,
}),
}),
});
const key = 'get_your_own_D6rA4zTHduk6KOKTXzGB';
const attributions =
'<a href="https://www.maptiler.com/copyright/" target="_blank">© MapTiler</a> ' +
'<a href="https://www.openstreetmap.org/copyright" target="_blank">© OpenStreetMap contributors</a>';
const raster = new TileLayer({
source: new XYZ({
attributions: attributions,
url: 'https://api.maptiler.com/maps/satellite/{z}/{x}/{y}.jpg?key=' + key,
tileSize: 512,
maxZoom: 20,
}),
});
const map = new Map({
layers: [raster, vector],
target: document.getElementById('map'),
view: new View({
center: [-8908887.277395891, 5381918.072437216],
maxZoom: 19,
zoom: 12,
}),
});
// generate a GetFeature request
const featureRequest = new WFS().writeGetFeature({
srsName: 'EPSG:3857',
featureNS: 'http://openstreemap.org',
featurePrefix: 'osm',
featureTypes: ['water_areas'],
outputFormat: 'application/json',
filter: andFilter(
likeFilter('name', 'Mississippi*'),
equalToFilter('waterway', 'riverbank'),
),
});
// then post the request and add the received features to a layer
fetch('https://ahocevar.com/geoserver/wfs', {
method: 'POST',
body: new XMLSerializer().serializeToString(featureRequest),
})
.then(function (response) {
return response.json();
})
.then(function (json) {
const features = new GeoJSON().readFeatures(json);
vectorSource.addFeatures(features);
map.getView().fit(vectorSource.getExtent());
});