Files
openlayers/examples/geographic.js
2022-07-30 09:48:10 -06:00

90 lines
2.1 KiB
JavaScript

import {Feature, Map, Overlay, View} from '../src/ol/index.js';
import {OSM, Vector as VectorSource} from '../src/ol/source.js';
import {Point} from '../src/ol/geom.js';
import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.js';
import {useGeographic} from '../src/ol/proj.js';
useGeographic();
const place = [-110, 45];
const point = new Point(place);
const map = new Map({
target: 'map',
view: new View({
center: place,
zoom: 8,
}),
layers: [
new TileLayer({
source: new OSM(),
}),
new VectorLayer({
source: new VectorSource({
features: [new Feature(point)],
}),
style: {
'circle-radius': 9,
'circle-fill-color': 'red',
},
}),
],
});
const element = document.getElementById('popup');
const popup = new Overlay({
element: element,
positioning: 'bottom-center',
stopEvent: false,
offset: [0, -10],
});
map.addOverlay(popup);
function formatCoordinate(coordinate) {
return `
<table>
<tbody>
<tr><th>lon</th><td>${coordinate[0].toFixed(2)}</td></tr>
<tr><th>lat</th><td>${coordinate[1].toFixed(2)}</td></tr>
</tbody>
</table>`;
}
const info = document.getElementById('info');
map.on('moveend', function () {
const view = map.getView();
const center = view.getCenter();
info.innerHTML = formatCoordinate(center);
});
map.on('click', function (event) {
$(element).popover('dispose');
const feature = map.getFeaturesAtPixel(event.pixel)[0];
if (feature) {
const coordinate = feature.getGeometry().getCoordinates();
popup.setPosition([
coordinate[0] + Math.round(event.coordinate[0] / 360) * 360,
coordinate[1],
]);
$(element).popover({
container: element.parentElement,
html: true,
sanitize: false,
content: formatCoordinate(coordinate),
placement: 'top',
});
$(element).popover('show');
}
});
map.on('pointermove', function (event) {
if (map.hasFeatureAtPixel(event.pixel)) {
map.getViewport().style.cursor = 'pointer';
} else {
map.getViewport().style.cursor = 'inherit';
}
});