054af09032
This updates ESLint and our shared eslint-config-openlayers to use Prettier. Most formatting changes were automatically applied with this:
npm run lint -- --fix
A few manual changes were required:
* In `examples/offscreen-canvas.js`, the `//eslint-disable-line` comment needed to be moved to the appropriate line to disable the error about the `'worker-loader!./offscreen-canvas.worker.js'` import.
* In `examples/webpack/exapmle-builder.js`, spaces could not be added after a couple `function`s for some reason. While editing this, I reworked `ExampleBuilder` to be a class.
* In `src/ol/format/WMSGetFeatureInfo.js`, the `// @ts-ignore` comment needed to be moved down one line so it applied to the `parsersNS` argument.
111 lines
3.2 KiB
JavaScript
111 lines
3.2 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 WKT from '../src/ol/format/WKT.js';
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import {OSM, Vector as VectorSource} from '../src/ol/source.js';
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import {Tile as TileLayer, Vector as VectorLayer} from '../src/ol/layer.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 format = new WKT();
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const feature = format.readFeature(
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'POLYGON((10.689697265625 -25.0927734375, 34.595947265625 ' +
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'-20.1708984375, 38.814697265625 -35.6396484375, 13.502197265625 ' +
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'-39.1552734375, 10.689697265625 -25.0927734375))'
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);
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feature.getGeometry().transform('EPSG:4326', 'EPSG:3857');
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const vector = new VectorLayer({
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source: new VectorSource({
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features: [feature],
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}),
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opacity: 0.5,
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});
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const map = new Map({
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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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const dims = {
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a0: [1189, 841],
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a1: [841, 594],
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a2: [594, 420],
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a3: [420, 297],
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a4: [297, 210],
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a5: [210, 148],
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};
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const exportButton = document.getElementById('export-pdf');
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exportButton.addEventListener(
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'click',
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function () {
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exportButton.disabled = true;
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document.body.style.cursor = 'progress';
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const format = document.getElementById('format').value;
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const resolution = document.getElementById('resolution').value;
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const dim = dims[format];
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const width = Math.round((dim[0] * resolution) / 25.4);
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const height = Math.round((dim[1] * resolution) / 25.4);
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const size = map.getSize();
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const viewResolution = map.getView().getResolution();
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map.once('rendercomplete', function () {
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const mapCanvas = document.createElement('canvas');
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mapCanvas.width = width;
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mapCanvas.height = height;
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const mapContext = mapCanvas.getContext('2d');
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Array.prototype.forEach.call(
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document.querySelectorAll('.ol-layer canvas'),
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function (canvas) {
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if (canvas.width > 0) {
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const opacity = canvas.parentNode.style.opacity;
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mapContext.globalAlpha = opacity === '' ? 1 : Number(opacity);
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const transform = canvas.style.transform;
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// Get the transform parameters from the style's transform matrix
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const matrix = transform
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.match(/^matrix\(([^\(]*)\)$/)[1]
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.split(',')
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.map(Number);
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// Apply the transform to the export map context
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CanvasRenderingContext2D.prototype.setTransform.apply(
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mapContext,
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matrix
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);
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mapContext.drawImage(canvas, 0, 0);
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}
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}
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);
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const pdf = new jsPDF('landscape', undefined, format);
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pdf.addImage(
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mapCanvas.toDataURL('image/jpeg'),
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'JPEG',
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0,
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0,
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dim[0],
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dim[1]
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);
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pdf.save('map.pdf');
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// Reset original map size
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map.setSize(size);
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map.getView().setResolution(viewResolution);
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exportButton.disabled = false;
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document.body.style.cursor = 'auto';
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});
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// Set print size
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const printSize = [width, height];
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map.setSize(printSize);
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const scaling = Math.min(width / size[0], height / size[1]);
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map.getView().setResolution(viewResolution / scaling);
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},
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false
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);
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