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136 lines (120 loc) · 2.74 KB
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Change a layer's color with buttons</title>
<meta property="og:description" content="Use setPaintProperty to change a layer's fill color." />
<meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
margin: 0;
padding: 0;
}
html,
body,
#map {
height: 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 for="layer">Select layer</label>
<select id="layer" name="layer">
<option value="water">Water</option>
<option value="building-3d">Buildings</option>
</select>
</fieldset>
<fieldset>
<label>Choose a color</label>
<div id="swatches"></div>
</fieldset>
</div>
</div>
<script>
const map = new maplibregl.Map({
container: 'map',
style: 'https://api.maptiler.com/maps/streets/style.json?key=get_your_own_OpIi9ZULNHzrESv6T2vL',
center: [12.338, 45.4385],
zoom: 17.4
});
const swatches = document.getElementById('swatches');
const layer = document.getElementById('layer');
const colors = [
'#ffffcc',
'#a1dab4',
'#41b6c4',
'#2c7fb8',
'#253494',
'#fed976',
'#feb24c',
'#fd8d3c',
'#f03b20',
'#bd0026'
];
colors.forEach((color) => {
const swatch = document.createElement('button');
swatch.style.backgroundColor = color;
swatch.addEventListener('click', () => {
map.setPaintProperty(
layer.value,
layer.value === 'water' ? 'fill-color' : 'fill-extrusion-color',
color
);
});
swatches.appendChild(swatch);
});
</script>
</body>
</html>