<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title>Draw Polygons - custom style</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://tiles.locationiq.com/v2/libs/maplibre-gl/1.15.2/maplibre-gl.js'></script>
<link href='https://tiles.locationiq.com/v2/libs/maplibre-gl/1.15.2/maplibre-gl.css' rel='stylesheet' />
<!--
You need to include the mapbox-gl draw plugin to have interactive drawing controls
-->
<script src='https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-draw/v1.0.0/mapbox-gl-draw.js'></script>
<link rel='stylesheet' href='https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-draw/v1.0.0/mapbox-gl-draw.css' type='text/css'/>
<style>
body { margin:0px; padding:0px; }
#map { position:absolute; top:0px; bottom:0px; width:100%; }
</style>
</head>
<body>
<div id='map'></div>
<script>
//Add your LocationIQ Maps Access Token here (not the API token!)
locationiqKey = 'pk.a5c3fbf2119bfb2275b62eddbccd76b3';
//Define the map and configure the map's theme
var map = new mapboxgl.Map({
container: 'map',
attributionControl: false, //need this to show a compact attribution icon (i) instead of the whole text
style: 'https://tiles.locationiq.com/v2/streets/vector.json?key='+locationiqKey,
zoom: 12,
center: [-122.42, 37.779]q
});
//Add draw controls
var draw = new MapboxDraw({
displayControlsDefault: false,
controls: {
polygon: true,
trash: true
},
//This is OPTIONAL, only to show how to customize the style of the shapes (points, lines). More info here: https://github.com/mapbox/mapbox-gl-draw/blob/master/docs/EXAMPLES.md
styles: [
// ACTIVE (being drawn)
// line stroke
{
"id": "gl-draw-line",
"type": "line",
"filter": ["all", ["==", "$type", "LineString"], ["!=", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#D20C0C",
"line-dasharray": [0.2, 2],
"line-width": 2
}
},
// polygon fill
{
"id": "gl-draw-polygon-fill",
"type": "fill",
"filter": ["all", ["==", "$type", "Polygon"], ["!=", "mode", "static"]],
"paint": {
"fill-color": "#D20C0C",
"fill-outline-color": "#D20C0C",
"fill-opacity": 0.1
}
},
// polygon outline stroke
// This doesn't style the first edge of the polygon, which uses the line stroke styling instead
{
"id": "gl-draw-polygon-stroke-active",
"type": "line",
"filter": ["all", ["==", "$type", "Polygon"], ["!=", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#D20C0C",
"line-dasharray": [0.2, 2],
"line-width": 2
}
},
// vertex point halos
{
"id": "gl-draw-polygon-and-line-vertex-halo-active",
"type": "circle",
"filter": ["all", ["==", "meta", "vertex"], ["==", "$type", "Point"], ["!=", "mode", "static"]],
"paint": {
"circle-radius": 5,
"circle-color": "#FFF"
}
},
// vertex points
{
"id": "gl-draw-polygon-and-line-vertex-active",
"type": "circle",
"filter": ["all", ["==", "meta", "vertex"], ["==", "$type", "Point"], ["!=", "mode", "static"]],
"paint": {
"circle-radius": 3,
"circle-color": "#D20C0C",
}
},
// INACTIVE (static, already drawn)
// line stroke
{
"id": "gl-draw-line-static",
"type": "line",
"filter": ["all", ["==", "$type", "LineString"], ["==", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#000",
"line-width": 3
}
},
// polygon fill
{
"id": "gl-draw-polygon-fill-static",
"type": "fill",
"filter": ["all", ["==", "$type", "Polygon"], ["==", "mode", "static"]],
"paint": {
"fill-color": "#000",
"fill-outline-color": "#000",
"fill-opacity": 0.1
}
},
// polygon outline
{
"id": "gl-draw-polygon-stroke-static",
"type": "line",
"filter": ["all", ["==", "$type", "Polygon"], ["==", "mode", "static"]],
"layout": {
"line-cap": "round",
"line-join": "round"
},
"paint": {
"line-color": "#000",
"line-width": 3
}
}
]
});
map.addControl(draw);
//Add listeners
map.on('draw.create', updateArea);
map.on('draw.delete', updateArea);
map.on('draw.update', updateArea);
//This function is called when a draw event is triggered (create, delete, update)
//API ref for all that you can do with the draw control: https://github.com/mapbox/mapbox-gl-draw/blob/master/docs/API.md
function updateArea(e) {
var data = draw.getAll();
//We are simply logging all the geometries into console
//Your first shape's points data can be found in features->0->geometry->coordinates
console.log(data);
//You can use http://turfjs.org/ to get bounding boxes, area, etc for these shapes
}
</script>
</body>
</html>