Change a layer's color with buttons | Goong Documents

Use setPaintProperty to change a layer's fill color.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Change a layer's color with buttons</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<script src="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.js"></script>
<link href="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.css" rel="stylesheet" />
<style>
	body { margin: 0; padding: 0; }
	#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<style>
.map-overlay {
font: 12px/20px 'Helvetica Neue', Arial, Helvetica, sans-serif;
position: absolute;
width: 200px;
top: 0;
left: 0;
padding: 10px;
}
 
.map-overlay .map-overlay-inner {
background-color: #fff;
box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
border-radius: 3px;
padding: 10px;
margin-bottom: 10px;
}
 
.map-overlay-inner fieldset {
border: none;
padding: 0;
margin: 0 0 10px;
}
 
.map-overlay-inner fieldset:last-child {
margin: 0;
}
 
.map-overlay-inner select {
width: 100%;
}
 
.map-overlay-inner label {
display: block;
font-weight: bold;
margin: 0 0 5px;
}
 
.map-overlay-inner button {
display: inline-block;
width: 36px;
height: 20px;
border: none;
cursor: pointer;
}
 
.map-overlay-inner button:focus {
outline: none;
}
 
.map-overlay-inner button:hover {
box-shadow: inset 0 0 0 3px rgba(0, 0, 0, 0.1);
}
</style>
 
<div id="map"></div>
<div class="map-overlay top">
<div class="map-overlay-inner">
<fieldset>
<label>Select layer</label>
<select id="layer" name="layer">
<option value="water">Water</option>
<option value="buildings">Buildings</option>
</select>
</fieldset>
<fieldset>
<label>Choose a color</label>
<div id="swatches"></div>
</fieldset>
</div>
</div>
 
<script>
goongjs.accessToken = '8qzxZAuxcsctSlmOszInchP1A5GrmRBHJwCBCjO6';
var map = new goongjs.Map({
container: 'map',
style: 'https://tiles.goong.io/assets/goong_map_web.json',
center: [105.81285, 21.03215],
zoom: 15.4
});
 
map.on('load', function () {
map.addLayer({
'id': 'buildings',
'source': 'composite',
'source-layer': 'VN_Building',
'filter': ['==', 'extrude', 'true'],
'type': 'fill-extrusion',
'minzoom': 15,
'paint': {
'fill-extrusion-color': '#aaa',
 
// use an 'interpolate' expression to add a smooth transition effect to the
// buildings as the user zooms in
'fill-extrusion-height': [
'interpolate',
['linear'],
['zoom'],
15,
0,
15.05,
['get', 'height']
],
'fill-extrusion-base': [
'interpolate',
['linear'],
['zoom'],
15,
0,
15.05,
['get', 'min_height']
],
'fill-extrusion-opacity': 0.6
}
});
});
 
var swatches = document.getElementById('swatches');
var layer = document.getElementById('layer');
var colors = [
'#ffffcc',
'#a1dab4',
'#41b6c4',
'#2c7fb8',
'#253494',
'#fed976',
'#feb24c',
'#fd8d3c',
'#f03b20',
'#bd0026'
];
 
colors.forEach(function (color) {
var swatch = document.createElement('button');
swatch.style.backgroundColor = color;
swatch.addEventListener('click', function () {
if (layer.value === 'buildings') {
map.setPaintProperty(
layer.value,
'fill-extrusion-color',
color
);
} else {
map.setPaintProperty(layer.value, 'fill-color', color);
}
});
swatches.appendChild(swatch);
});
</script>
 
</body>
</html>