Render street names.
Example showing the use of a text style with placement: 'line'
to render text along a path.
import GeoJSON from 'ol/format/GeoJSON.js';
import ImageTile from 'ol/source/ImageTile.js';
import Map from 'ol/Map.js';
import VectorSource from 'ol/source/Vector.js';
import View from 'ol/View.js';
import {Fill, Style, Text} from 'ol/style.js';
import {Tile as TileLayer, Vector as VectorLayer} from 'ol/layer.js';
import {getCenter} from 'ol/extent.js';
const style = new Style({
text: new Text({
font: 'bold 11px "Open Sans", "Arial Unicode MS", "sans-serif"',
placement: 'line',
fill: new Fill({
color: 'white',
}),
}),
});
const key = 'Get your own API key at https://www.maptiler.com/cloud/';
const attributions =
'<a href="https://www.maptiler.com/copyright/" target="_blank">© MapTiler</a> ' +
'<a href="https://www.openstreetmap.org/copyright" target="_blank">© OpenStreetMap contributors</a>';
const viewExtent = [1817379, 6139595, 1827851, 6143616];
const map = new Map({
layers: [
new TileLayer({
source: new ImageTile({
attributions: attributions,
url:
'https://api.maptiler.com/maps/satellite/{z}/{x}/{y}.jpg?key=' + key,
tileSize: 512,
maxZoom: 20,
}),
}),
new VectorLayer({
declutter: true,
source: new VectorSource({
format: new GeoJSON(),
url: 'data/geojson/vienna-streets.geojson',
}),
style: function (feature) {
style.getText().setText(feature.get('name'));
return style;
},
}),
],
target: 'map',
view: new View({
extent: viewExtent,
center: getCenter(viewExtent),
zoom: 17,
minZoom: 14,
}),
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Street Labels</title>
<link rel="stylesheet" href="node_modules/ol/ol.css">
<style>
.map {
width: 100%;
height: 400px;
}
</style>
</head>
<body>
<div id="map" class="map"></div>
<script type="module" src="main.js"></script>
</body>
</html>
{
"name": "street-labels",
"dependencies": {
"ol": "10.2.1"
},
"devDependencies": {
"vite": "^3.2.3"
},
"scripts": {
"start": "vite",
"build": "vite build"
}
}