版本：9.0.0
栅格服务透明度设置

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>Add_rasterOpacity</title>
    <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no"/>
    <style>
        body {
            margin: 0;
            padding: 0;
        }

        #map {
            position: absolute;
            top: 0;
            bottom: 0;
            width: 100%;
        }
    </style>
    <script src="https://delivery.mapmost.com/cdn/sdk/webgl/v9.0.0/mapmost-webgl-min.js"></script>
</head>
<body>
<div id="map"></div>
<script>
    let map = new mapmost.Map({
        container: 'map',  
        style: "<your style url>", 
        center: [7.44428, 46.94637], 
        zoom: 14, 
        pitch: 0,
        userId: '***', // 授权码
    });

    map.on('load', function () {

        map.addSource('wmts-test-source', {
            'type': 'raster',
            'tiles': [
                "<tiles url>"
                // 如 "https://wmts.geo.admin.ch/1.0.0/ch.swisstopo.swissimage/default/current/3857/{z}/{x}/{y}.jpeg"
            ],
            'tileSize': 256
        });
        map.addLayer(
            {
                'id': 'wmts-test-layer',
                'type': 'raster',
                'source': 'wmts-test-source',
            }
        );

        map.on('click', function () {
            map.setPaintProperty('wmts-test-layer', 'raster-opacity', 0.5);
        })
    })
</script>
</body>
</html>