ad62739a6e
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
111 lines
2.9 KiB
JavaScript
111 lines
2.9 KiB
JavaScript
// NOCOMPILE
|
|
import Map from '../src/ol/Map.js';
|
|
import View from '../src/ol/View.js';
|
|
import {defaults as defaultControls} from '../src/ol/control.js';
|
|
import WKT from '../src/ol/format/WKT.js';
|
|
import TileLayer from '../src/ol/layer/Tile.js';
|
|
import VectorLayer from '../src/ol/layer/Vector.js';
|
|
import OSM from '../src/ol/source/OSM.js';
|
|
import VectorSource from '../src/ol/source/Vector.js';
|
|
|
|
const raster = new TileLayer({
|
|
source: new OSM()
|
|
});
|
|
|
|
const format = new WKT();
|
|
const feature = format.readFeature(
|
|
'POLYGON((10.689697265625 -25.0927734375, 34.595947265625 ' +
|
|
'-20.1708984375, 38.814697265625 -35.6396484375, 13.502197265625 ' +
|
|
'-39.1552734375, 10.689697265625 -25.0927734375))');
|
|
feature.getGeometry().transform('EPSG:4326', 'EPSG:3857');
|
|
|
|
const vector = new VectorLayer({
|
|
source: new VectorSource({
|
|
features: [feature]
|
|
})
|
|
});
|
|
|
|
|
|
const map = new Map({
|
|
layers: [raster, vector],
|
|
target: 'map',
|
|
controls: defaultControls({
|
|
attributionOptions: {
|
|
collapsible: false
|
|
}
|
|
}),
|
|
view: new View({
|
|
center: [0, 0],
|
|
zoom: 2
|
|
})
|
|
});
|
|
|
|
|
|
const dims = {
|
|
a0: [1189, 841],
|
|
a1: [841, 594],
|
|
a2: [594, 420],
|
|
a3: [420, 297],
|
|
a4: [297, 210],
|
|
a5: [210, 148]
|
|
};
|
|
|
|
let loading = 0;
|
|
let loaded = 0;
|
|
|
|
const exportButton = document.getElementById('export-pdf');
|
|
|
|
exportButton.addEventListener('click', function() {
|
|
|
|
exportButton.disabled = true;
|
|
document.body.style.cursor = 'progress';
|
|
|
|
const format = document.getElementById('format').value;
|
|
const resolution = document.getElementById('resolution').value;
|
|
const dim = dims[format];
|
|
const width = Math.round(dim[0] * resolution / 25.4);
|
|
const height = Math.round(dim[1] * resolution / 25.4);
|
|
const size = /** @type {ol.Size} */ (map.getSize());
|
|
const extent = map.getView().calculateExtent(size);
|
|
|
|
const source = raster.getSource();
|
|
|
|
const tileLoadStart = function() {
|
|
++loading;
|
|
};
|
|
|
|
function tileLoadEnd() {
|
|
++loaded;
|
|
if (loading === loaded) {
|
|
const canvas = this;
|
|
window.setTimeout(function() {
|
|
loading = 0;
|
|
loaded = 0;
|
|
const data = canvas.toDataURL('image/png');
|
|
const pdf = new jsPDF('landscape', undefined, format);
|
|
pdf.addImage(data, 'JPEG', 0, 0, dim[0], dim[1]);
|
|
pdf.save('map.pdf');
|
|
source.un('tileloadstart', tileLoadStart);
|
|
source.un('tileloadend', tileLoadEnd, canvas);
|
|
source.un('tileloaderror', tileLoadEnd, canvas);
|
|
map.setSize(size);
|
|
map.getView().fit(extent);
|
|
map.renderSync();
|
|
exportButton.disabled = false;
|
|
document.body.style.cursor = 'auto';
|
|
}, 100);
|
|
}
|
|
}
|
|
|
|
map.once('postcompose', function(event) {
|
|
source.on('tileloadstart', tileLoadStart);
|
|
source.on('tileloadend', tileLoadEnd, event.context.canvas);
|
|
source.on('tileloaderror', tileLoadEnd, event.context.canvas);
|
|
});
|
|
|
|
map.setSize([width, height]);
|
|
map.getView().fit(extent);
|
|
map.renderSync();
|
|
|
|
}, false);
|