[REGRESSION] We can't change the opacity of the globe #2561
Description
It seems that we can't edit the opactiy of the globe anymore
Steps to Reproduce
- Use the following example code
- Click on the button "Change Tile Layer Opacity"
Expected Behavior
Actual Behavior
<html>
<head>
<title>Itowns - Globe</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="css/example.css">
<link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">
<link rel="stylesheet" type="text/css" href="css/widgets.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.min.js"></script>
<style>
#removeElevationBtn {
position: absolute;
top: 10px;
left: 10px;
z-index: 1000;
padding: 10px 15px;
background-color: #ff6b6b;
color: white;
border: none;
border-radius: 5px;
cursor: pointer;
font-size: 14px;
}
#removeElevationBtn:hover {
background-color: #ff5252;
}
#removeElevationBtn:disabled {
background-color: #cccccc;
cursor: not-allowed;
}
#opacityBtn {
position: absolute;
top: 60px;
left: 10px;
z-index: 1000;
padding: 10px 15px;
background-color: #4caf50;
color: white;
border: none;
border-radius: 5px;
cursor: pointer;
font-size: 14px;
}
#opacityBtn:hover {
background-color: #45a049;
}
</style>
</head>
<body>
<div id="viewerDiv"></div>
<button id="removeElevationBtn" onclick="removeElevationLayer()">Remove Elevation Layer</button>
<button id="opacityBtn" onclick="changeTileLayerOpacity()">Change Tile Layer Opacity</button>
<!-- Import iTowns source code -->
<script src="../dist/itowns.js"></script>
<script src="../dist/debug.js"></script>
<!-- Import iTowns Widgets plugin -->
<script src="../dist/itowns_widgets.js"></script>
<!-- Import iTowns LoadingScreen and GuiTools plugins -->
<script src="js/GUI/GuiTools.js"></script>
<script src="js/GUI/LoadingScreen.js"></script>
<script type="text/javascript">
// ---------- CREATE A GlobeView FOR SUPPORTING DATA VISUALIZATION : ----------
// Define camera initial position
const placement = {
coord: new itowns.Coordinates('EPSG:4326', 2.351323, 48.856712),
range: 2500,
}
// `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
const viewerDiv = document.getElementById('viewerDiv');
// Create a GlobeView
const view = new itowns.GlobeView(viewerDiv, placement);
// Setup loading screen and debug menu
setupLoadingScreen(viewerDiv, view);
const debugMenu = new GuiTools('menuDiv', view);
// Store elevation layer ID for removal
let elevationLayerId = null;
// Track current opacity for cycling through values
let currentOpacity = 1.0;
// ---------- DISPLAY ORTHO-IMAGES : ----------
// Add one imagery layer to the scene. This layer's properties are defined in a json file, but it could be
// defined as a plain js object. See `Layer` documentation for more info.
itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then(function _(config) {
config.source = new itowns.WMTSSource(config.source);
view.addLayer(
new itowns.ColorLayer('Ortho', config),
).then(debugMenu.addLayerGUI.bind(debugMenu));
});
// ---------- DISPLAY A DIGITAL ELEVATION MODEL : ----------
// Add two elevation layers, each with a different level of detail. Here again, each layer's properties are
// defined in a json file.
function addElevationLayerFromConfig(config) {
config.source = new itowns.WMTSSource(config.source);
const elevationLayer = new itowns.ElevationLayer(config.id, config);
elevationLayerId = config.id; // Store the layer ID
view.addLayer(elevationLayer).then(debugMenu.addLayerGUI.bind(debugMenu));
}
// itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json').then(addElevationLayerFromConfig);
itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json').then(addElevationLayerFromConfig);
// Function to remove elevation layer
function removeElevationLayer() {
if (elevationLayerId) {
view.removeLayer(elevationLayerId, true);
console.log(`Elevation layer ${elevationLayerId} removed`);
// Disable the button after removal
document.getElementById('removeElevationBtn').disabled = true;
document.getElementById('removeElevationBtn').textContent = 'Elevation Layer Removed';
} else {
console.log('No elevation layer ID found');
}
}
// Function to change tile layer opacity
function changeTileLayerOpacity() {
// Cycle through opacity values: 1.0 -> 0.7 -> 0.5 -> 0.3 -> 1.0
const opacityValues = [1.0, 0.7, 0.5, 0.3];
const currentIndex = opacityValues.indexOf(currentOpacity);
const nextIndex = (currentIndex + 1) % opacityValues.length;
currentOpacity = opacityValues[nextIndex];
// Apply the opacity change
const opacity = currentOpacity;
view.tileLayer.opacity = opacity;
view.notifyChange(view.camera3D);
console.log(`Tile layer opacity changed to: ${opacity}`);
document.getElementById('opacityBtn').textContent = `Opacity: ${Math.round(opacity * 100)}%`;
}
// ---------- ADD SOME WIDGETS : ----------
// ADD A SCALE :
const scale = new itowns_widgets.Scale(view, { position: 'bottom-right', translate: { x: -80 } });
// ADD A MINIMAP :
const minimap = new itowns_widgets.Minimap(
view,
new itowns.ColorLayer('minimap', {
source: new itowns.VectorTilesSource({
style: "https://data.geopf.fr/annexes/ressources/vectorTiles/styles/PLAN.IGN/standard.json",
// We don't display mountains and plot related data to ease visualisation
filter: (layer) => !layer['source-layer'].includes('oro_')
&& !layer['source-layer'].includes('parcellaire'),
}),
addLabelLayer: { performance: true },
}),
{ cursor: '+' },
);
// ADD NAVIGATION TOOLS :
const navigation = new itowns_widgets.Navigation(view, {
position: 'bottom-right',
translate: { y: -40 },
});
// ADD A SEARCH BAR :
// You can find more precise explanation on searchbar options in the doc
// (http://www.itowns-project.org/itowns/docs/#api/Widgets/Searchbar) and in the searchbar example
// (https://www.itowns-project.org/itowns/examples/#widgets_searchbar)
// Define options for geocoding service that should be used by the searchbar.
const geocodingOptions = {
url: new URL(
'https://data.geopf.fr/geocodage/completion?' +
'text=&type=StreetAddress,PositionOfInterest',
),
parser: (response) => {
const map = new Map();
response.results.forEach(location => {
map.set(location.fulltext, new itowns.Coordinates('EPSG:4326', location.x, location.y));
});
return map;
},
onSelected: (coordinates) => {
view.controls.lookAtCoordinate({ coord: coordinates, range: 20000, tilt: 45, heading: 0 });
},
}
// Create the searchbar
const searchbar = new itowns_widgets.Searchbar(view, geocodingOptions, {
maxSuggestionNumber: 15,
placeholder: 'Search a location in France',
position: 'top-right',
});
// ---------- DISPLAY ATMOSPHERIC LIGHTING : ----------
const atmosphere = view.getLayerById('atmosphere');
atmosphere.setRealisticOn(!view.isDebugMode);
// ---------- DEBUG TOOLS : ----------
// Toggle atmospheric lighting on/off.
const cRL = debugMenu.addGUI('RealisticLighting', !view.isDebugMode, function (v) {
atmosphere.setRealisticOn(v);
view.notifyChange(atmosphere);
});
debug.createTileDebugUI(debugMenu.gui, view);
</script>
</body>
</html>