var center = [37.78791180770003, -122.40962505340575];
var map = L.map('map').setView(center, 14);;
L.tileLayer(
'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
maxZoom: 18
}).addTo(map);
var line = {
"type": "Feature",
"properties": {
"color": "blue"
},
"geometry": {
"type": "LineString",
"coordinates": [
[-122.40447521209718,
37.79367718768535
],
[-122.40803718566895,
37.79171022624846
],
[-122.40769386291502,
37.79096412372944
],
[-122.40662097930908,
37.789641468930114
],
[-122.40941047668457,
37.789675383451495
],
[-122.40992546081543,
37.78875968591083
],
[-122.40962505340575,
37.78791180770003
]
]
}
};
L.geoJSON(line, {
style: function(feature) {
return {
color: feature.properties.color
};
}
}).addTo(map);
var polygon = turf.buffer(line, 0.5, {
units: 'miles'
});
L.geoJSON(polygon, {
style: function(feature) {
return {
color: feature.properties.color
};
}
}).addTo(map);
#map {
height: 300px;
}
<script src="https://npmcdn.com/@turf/turf/turf.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.5.1/leaflet.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.5.1/leaflet.js"></script>
<div id="map"></div>