Files
openlayers/examples/layer-swipe.js
Frederic Junod 79c8afdba8 Simplify import path in examples
To have the same path (starting with `ol/`, without `.js`) as in the documentation.
The support was added in the webpack config in #8928
2018-11-26 17:18:52 +01:00

46 lines
967 B
JavaScript

import Map from 'ol/Map';
import View from 'ol/View';
import TileLayer from 'ol/layer/Tile';
import BingMaps from 'ol/source/BingMaps';
import OSM from 'ol/source/OSM';
const osm = new TileLayer({
source: new OSM()
});
const bing = new TileLayer({
source: new BingMaps({
key: 'As1HiMj1PvLPlqc_gtM7AqZfBL8ZL3VrjaS3zIb22Uvb9WKhuJObROC-qUpa81U5',
imagerySet: 'Aerial'
})
});
const map = new Map({
layers: [osm, bing],
target: 'map',
view: new View({
center: [0, 0],
zoom: 2
})
});
const swipe = document.getElementById('swipe');
bing.on('prerender', function(event) {
const ctx = event.context;
const width = ctx.canvas.width * (swipe.value / 100);
ctx.save();
ctx.beginPath();
ctx.rect(width, 0, ctx.canvas.width - width, ctx.canvas.height);
ctx.clip();
});
bing.on('postrender', function(event) {
const ctx = event.context;
ctx.restore();
});
swipe.addEventListener('input', function() {
map.render();
}, false);