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| import Feature from 'ol/Feature.js';
import Map from 'ol/Map.js';
import Point from 'ol/geom/Point.js';
import TileJSON from 'ol/source/TileJSON.js';
import VectorSource from 'ol/source/Vector.js';
import View from 'ol/View.js';
import {Icon, Style} from 'ol/style.js';
import {Modify} from 'ol/interaction.js';
import {Tile as TileLayer, Vector as VectorLayer} from 'ol/layer.js';
const iconFeature = new Feature({
geometry: new Point([0, 0]),
name: 'Null Island',
population: 4000,
rainfall: 500,
});
const iconStyle = new Style({
image: new Icon({
anchor: [0.5, 46],
anchorXUnits: 'fraction',
anchorYUnits: 'pixels',
src: 'data/icon.png',
}),
});
iconFeature.setStyle(iconStyle);
const vectorSource = new VectorSource({
features: [iconFeature],
});
const vectorLayer = new VectorLayer({
source: vectorSource,
});
const rasterLayer = new TileLayer({
source: new TileJSON({
url: 'https://a.tiles.mapbox.com/v3/aj.1x1-degrees.json?secure=1',
crossOrigin: '',
}),
});
const target = document.getElementById('map');
const map = new Map({
layers: [rasterLayer, vectorLayer],
target: target,
view: new View({
center: [0, 0],
zoom: 3,
}),
});
const modify = new Modify({
hitDetection: vectorLayer,
source: vectorSource,
});
modify.on(['modifystart', 'modifyend'], function (evt) {
target.style.cursor = evt.type === 'modifystart' ? 'grabbing' : 'pointer';
});
const overlaySource = modify.getOverlay().getSource();
overlaySource.on(['addfeature', 'removefeature'], function (evt) {
target.style.cursor = evt.type === 'addfeature' ? 'pointer' : '';
});
map.addInteraction(modify);
|
)
