leaflet-transparency
Advanced tools
Readme
Leaflet plugin that allows to add an opacity control.
For a working example see demo
Initally based on the google-transparency plugin
<head>
...
<style>html, body, #map { width: 100%; height: 100%; margin: 0; padding: 0; }</style>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.3.2/dist/leaflet.css" />
<script src="https://unpkg.com/leaflet@1.3.2/dist/leaflet.js"></script>
<script src="https://unpkg.com/leaflet-transparency@latest/leaflet-transparency.js"></script>
...
</head>
<body>
...
<div id="map"></div>
...
</body>
<script>
var opts = {
map: {
center: [41.4583, 12.7059],
zoom: 5,
},
otmLayer: {
url: 'https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png',
options: {
attribution: 'Map data: © <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>, <a href="http://viewfinderpanoramas.org">SRTM</a> | Map style: © <a href="https://opentopomap.org">OpenTopoMap</a> (<a href="https://creativecommons.org/licenses/by-sa/3.0/">CC-BY-SA</a>)',
maxZoom: 17,
},
},
satelliteLayer: {
url: 'http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}',
options: {
attribution: '© <a href="http://www.esri.com/">Esri</a>',
maxZoom: 18,
},
},
opacityBaseControl: {
options: {
sliderImageUrl: "images/opacity-slider2.png",
backgroundColor: "rgba(0, 0, 0, 0.9)",
opacity: 1,
position: 'topright',
}
},
opacityOverlayControl: {
options: {
sliderImageUrl: "images/opacity-slider2.png",
backgroundColor: "rgba(229, 227, 223, 0.9)",
opacity: 0.75,
position: 'topright',
}
},
};
var map = new L.Map('map', opts.map);
var layer = new L.TileLayer(opts.otmLayer.url, opts.otmLayer.options);
var overlay = new L.TileLayer(opts.satelliteLayer.url, opts.satelliteLayer.options);
var controlBaseOpacity = new L.Control.OpacitySlider(null, opts.opacityBaseControl.options);
var controlOverlayOpacity = new L.Control.OpacitySlider(overlay, opts.opacityOverlayControl.options);
controlBaseOpacity.addTo(map);
controlOverlayOpacity.addTo(map);
layer.addTo(map);
</script>
Compatibile with: leaflet@1.3.2
Contributors: Raruto
FAQs
A Leaflet plugin that allows to add an opacity control
The npm package leaflet-transparency receives a total of 276 weekly downloads. As such, leaflet-transparency popularity was classified as not popular.
We found that leaflet-transparency demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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