47 lines
1.6 KiB
JavaScript
47 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 TileLayer from '../src/ol/layer/Tile.js';
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import IIIF from '../src/ol/source/IIIF.js';
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import IIIFInfo from '../src/ol/format/IIIFInfo.js';
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const layer = new TileLayer(),
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map = new Map({
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layers: [layer],
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target: 'map'
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}),
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notifyDiv = document.getElementById('iiif-notification'),
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urlInput = document.getElementById('imageInfoUrl'),
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displayButton = document.getElementById('display');
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function refreshMap(imageInfoUrl) {
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fetch(imageInfoUrl).then(function(response) {
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response.json().then(function(imageInfo) {
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const options = new IIIFInfo(imageInfo).getTileSourceOptions();
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if (options === undefined || options.version === undefined) {
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notifyDiv.textContent = 'Data seems to be no valid IIIF image information.';
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return;
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}
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options.zDirection = -1;
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const iiifTileSource = new IIIF(options);
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layer.setSource(iiifTileSource);
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map.setView(new View({
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resolutions: iiifTileSource.getTileGrid().getResolutions(),
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extent: iiifTileSource.getTileGrid().getExtent(),
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constrainOnlyCenter: true
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}));
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map.getView().fit(iiifTileSource.getTileGrid().getExtent());
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notifyDiv.textContent = '';
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}).catch(function(body) {
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notifyDiv.textContent = 'Could not read image info json. ' + body;
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});
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}).catch(function() {
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notifyDiv.textContent = 'Could not read data from URL.';
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});
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}
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displayButton.addEventListener('click', function() {
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refreshMap(urlInput.value);
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});
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refreshMap(urlInput.value);
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