70 lines
1.6 KiB
JavaScript
70 lines
1.6 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 GeoJSON from '../src/ol/format/GeoJSON.js';
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import {defaults as defaultInteractions, Modify} from '../src/ol/interaction.js';
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import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
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import {OSM, Vector as VectorSource} from '../src/ol/source.js';
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import {shiftKeyOnly} from '../src/ol/events/condition.js';
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import Collection from '../src/ol/Collection.js';
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import Style from '../src/ol/style/Style.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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const raster = new TileLayer({
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source: new OSM()
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});
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const vector = new VectorLayer({
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source: new VectorSource({
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url: 'data/geojson/countries.geojson',
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format: new GeoJSON(),
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wrapX: false
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})
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});
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const features = new Collection();
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// style features in collection
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const highlightStyle = new Style({
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fill: new Fill({
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color: 'rgba(255,255,255,0.7)'
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}),
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stroke: new Stroke({
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color: 'rgb(51,153,204)',
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width: 3
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})
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});
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features.on('add', function(e) {
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e.element.setStyle(highlightStyle);
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});
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features.on('remove', function(e) {
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e.element.setStyle(undefined);
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});
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const modify = new Modify({
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features: features
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});
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const map = new Map({
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interactions: defaultInteractions().extend([modify]),
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layers: [raster, vector],
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target: 'map',
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view: new View({
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center: [0, 0],
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zoom: 2
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})
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});
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map.on('singleclick', function(e) {
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if (!shiftKeyOnly(e)) {
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features.clear();
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}
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map.forEachFeatureAtPixel(e.pixel, function(f) {
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features.push(f);
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});
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});
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