itowns
Version:
A JS/WebGL framework for 3D geospatial data visualization
82 lines (68 loc) • 3.36 kB
HTML
<html>
<head>
<title>Itowns - Globe + vector-tiles</title>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="css/example.css">
<link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.min.js"></script>
</head>
<body>
<div id="viewerDiv"></div>
<div id="description">
Drag and drop a valid style file for a vector tiles stream. The
style <u><b>must</b></u> contain the sources for the stream (<a target="_blank"
href="https://docs.mapbox.com/mapbox-gl-js/style-spec/sources/">see
here</a>). You can add other styles without having to reload the
page, as the previous layers will be hidden. However, note that
having multiple styles may severly impact performances.</div>
<script src="js/GUI/GuiTools.js"></script>
<script src="../dist/itowns.js"></script>
<script src="js/GUI/LoadingScreen.js"></script>
<script>
var placement = {
coord: new itowns.Coordinates('EPSG:4326', 2.475, 48.807),
range: 120000,
}
var viewerDiv = document.getElementById('viewerDiv');
var view = new itowns.GlobeView(viewerDiv, placement);
var menu = new GuiTools('menuDiv', view, 300);
setupLoadingScreen(viewerDiv, view);
var currentLayer = {};
// Drag and drop handler
var fileReader = new FileReader();
var id = 0;
fileReader.onload = function onload(e) {
id++;
currentLayer.visible = false;
var style = JSON.parse(e.target.result);
console.log(style);
var source = new itowns.VectorTilesSource({ style });
var layer = new itowns.ColorLayer(style.name + ' ' + id, {
source,
noTextureParentOutsideLimit: true,
addLabelLayer: true,
});
view.addLayer(layer).then(() => {
menu.addLayerGUI(layer);
menu.colorGui.open();
menu.colorGui.__folders[style.name + ' ' + id].open();
});
currentLayer = layer;
}
// Load the file
function loadStyle(event, files) {
event.preventDefault();
// Take one at a time
var file = files[0];
fileReader.readAsText(file);
}
// Listen to drag and drop actions
document.addEventListener('dragenter', function _(e) { e.preventDefault(); }, false);
document.addEventListener('dragover', function _(e) { e.preventDefault(); }, false);
document.addEventListener('dragleave', function _(e) { e.preventDefault(); }, false);
document.addEventListener('drop', function _(e) { loadStyle(e, e.dataTransfer.files); }, false);
document.addEventListener('paste', function _(e) { loadStyle(e, e.clipboardData.files); }, false);
</script>
</body>
</html>