50 lines
1.0 KiB
JavaScript
50 lines
1.0 KiB
JavaScript
import Map from '../src/ol/Map.js';
|
|
import TileLayer from '../src/ol/layer/Tile.js';
|
|
import View from '../src/ol/View.js';
|
|
import {CartoDB, OSM} from '../src/ol/source.js';
|
|
|
|
const mapConfig = {
|
|
'layers': [
|
|
{
|
|
'type': 'cartodb',
|
|
'options': {
|
|
'cartocss_version': '2.1.1',
|
|
'cartocss': '#layer { polygon-fill: #F00; }',
|
|
},
|
|
},
|
|
],
|
|
};
|
|
|
|
function setArea(n) {
|
|
mapConfig.layers[0].options.sql =
|
|
'select * from european_countries_e where area > ' + n;
|
|
}
|
|
const areaSelect = document.getElementById('country-area');
|
|
setArea(areaSelect.value);
|
|
|
|
const cartoDBSource = new CartoDB({
|
|
account: 'documentation',
|
|
config: mapConfig,
|
|
});
|
|
|
|
areaSelect.addEventListener('change', function () {
|
|
setArea(this.value);
|
|
cartoDBSource.setConfig(mapConfig);
|
|
});
|
|
|
|
const map = new Map({
|
|
layers: [
|
|
new TileLayer({
|
|
source: new OSM(),
|
|
}),
|
|
new TileLayer({
|
|
source: cartoDBSource,
|
|
}),
|
|
],
|
|
target: 'map',
|
|
view: new View({
|
|
center: [8500000, 8500000],
|
|
zoom: 2,
|
|
}),
|
|
});
|