Leaflet Customize Bike Speed
E-Bikes travel at a higher speed, and climb hills better
<!DOCTYPE html>
<html>
<head>
<!-- Include leaflet javascript and css -->
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.0.3/dist/leaflet.css" >
<script src="https://unpkg.com/leaflet@1.0.3/dist/leaflet-src.js" crossorigin=""></script>
<!-- Include targomo leaflet full build -->
<script src="https://releases.targomo.com/leaflet/latest-full.min.js"></script>
<!-- Include micro progress bar -->
<script src="https://www.targomo.com/developers/scripts/mipb.min.js"></script>
<style>
body, html {
margin: 0;
width: 100%;
height: 100%;
font-family: Helvetica, Arial, Sans-Serif;
}
#map {
width: 100%;
height: 100%;
}
#select-container {
position: absolute; font-size: 11px;
top: 0px; right: 0px;
padding: 5px; z-index: 400;
background-color: white;
}
#select-container > input[type=radio] {
height: 11px;
}
</style>
</head><body onload="bikeSpeedForm.reset();">
<!-- where the map will live -->
<div id="map"></div>
<!-- checkbox used to change the bike mode -->
<form id="select-container" name="bikeSpeedForm">
<input type="radio" id="human" name="mode" value="human" onchange="setMode('bike')" checked>
<label for="hex">Human-power</label>
<input type="radio" id="motor" name="mode" value="motor" onchange="setMode('ebike')">
<label for="line">Electric-assist</label>
</form>
<script>
// set the progress bar
const pBar = new mipb({ fg: "#FF8319", style: { zIndex: 500 } });
pBar.show();
// create targomo client
const client = new tgm.TargomoClient('westcentraleurope', '__targomo_key_here__');
// define the basemap
const tilesUrl = 'https://api.maptiler.com/maps/positron/{z}/{x}/{y}@2x.png?key=__your_maptiler_api_key__';
const tileLayer = L.tileLayer(tilesUrl, {
tileSize: 512, zoomOffset: -1,
minZoom: 1, crossOrigin: true
});
// Coordinates to center the map
const center = [45.1874, 5.7401];
// define the map
var map = L.map('map', {
layers: [tileLayer],
scrollWheelZoom: false
}).setView(center, 12);
// set the attribution
const attributionText = `<a href="https://www.targomo.com/developers/resources/attribution/" target="_blank">© Targomo</a>`;
map.attributionControl.addAttribution(attributionText);
// define the polygon overlay
const polygonOverlayLayer = new tgm.leaflet.TgmLeafletPolygonOverlay({ strokeWidth: 20 });
polygonOverlayLayer.addTo(map);
async function setMode(mode) {
pBar.show();
// polygons time rings
const travelTimes = [300, 600, 900, 1200, 1500, 1800];
// polygon service options
const options = {
travelType: 'bike',
travelEdgeWeights: travelTimes,
maxEdgeWeight: 1800,
edgeWeight: 'time',
serializer: 'json'
};
// define the starting point
const sources = [{
id: 0, lat: center[0], lng: center[1],
// "tm" are the travel mode settings
tm: { bike: {
// e-bike gets an average speed of 25km/h, regular bike gets 15km/h
speed: mode === 'ebike' ? 25 : 15,
// e-bike is more efficient going up hills, so the uphill
// penalty is less than a regular bike
uphill: mode === 'ebike' ? 10 : 20,
// e-bike doesn't make us descend faster - negative penalty maintained
downhill: -10
} }
}];
// Add markers for the sources on the map.
sources.forEach(source => {
L.marker([source.lat, source.lng]).addTo(map)
});
// get the polygons
const polygons = await client.polygons.fetch(sources, options);
// calculate bounding box for polygons
const bounds = polygons.getMaxBounds();
// add polygons to overlay
polygonOverlayLayer.setData(polygons);
// zoom to the polygon bounds
map.fitBounds(new L.latLngBounds(bounds.northEast, bounds.southWest));
pBar.hide();
}
setMode('bike');
</script>
</body>
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