mirror of
https://github.com/Viglino/ol-ext.git
synced 2025-12-08 19:26:29 +00:00
137 lines
4.0 KiB
HTML
137 lines
4.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<!--
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Copyright (c) 2015 Jean-Marc VIGLINO,
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released under CeCILL-B (french BSD like) licence: http://www.cecill.info/
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-->
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<title>ol-ext: Layerswitcher</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="description" content="An OL3 layerswitcher." />
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<meta name="keywords" content="ol3, layer, layerswitcher, control,jQuery" />
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<!-- jQuery -->
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<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
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<!-- Openlayers -->
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@latest/ol.css" />
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<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/ol@latest/dist/ol.js"></script>
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<!-- ol-ext -->
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<link rel="stylesheet" href="../../dist/ol-ext.css" />
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<script type="text/javascript" src="../../dist/ol-ext.js"></script>
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<!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
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<script src="https://unpkg.com/elm-pep"></script>
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<link rel="stylesheet" href="../style.css" />
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<style>
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</style>
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</head>
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<body >
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<a href="https://github.com/Viglino/ol-ext" class="icss-github-corner"><i></i></a>
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<a href="../../index.html">
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<h1>ol-ext: LayerSwitcher control</h1>
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</a>
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<div class="info">
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<p>
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The filter option can be used to add a filter on layer names.
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<br/>
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It adds an input in the header of the layer switcher
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and listen to the <i>drawlist</i> event to show/hide the list items.
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</p>
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<p>
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For more info see <a href='map.switcher.html'>ol/control/LayerSwitcher example</a>.
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</p>
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</div>
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<!-- Map div -->
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<div id="map" style="width:600px; height:400px;"></div>
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<div class="external layerSwitcher"><b>Layer switcher + filter</b></div>
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<script type="text/javascript">
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// list of layers
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var layers = [
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new ol.layer.Geoportail('GEOGRAPHICALGRIDSYSTEMS.PLANIGNV2'),
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new ol.layer.Geoportail({layer: 'ELEVATION.SLOPES', visible: false }),
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new ol.layer.Geoportail('ORTHOIMAGERY.ORTHOPHOTOS'),
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new ol.layer.Geoportail('TRANSPORTNETWORKS.ROADS'),
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new ol.layer.Group({ title: 'labels', openInLayerSwitcher: true, layers: [
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new ol.layer.Geoportail('GEOGRAPHICALNAMES.NAMES'),
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new ol.layer.Tile({ visible: false, source: new ol.source.StadiaMaps({ layer: 'stamen_terrain_labels' }), title:'terrain-labels' }),
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]})
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];
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// The Map
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var map = new ol.Map({
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target: 'map',
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view: new ol.View({ zoom: 5, center: [166326, 5992663] }),
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layers: layers
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});
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// Add a layer switcher outside the map
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var lswitcher = new ol.control.LayerSwitcher({
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target:$(".layerSwitcher").get(0),
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});
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map.addControl(lswitcher);
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// The serach input
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var search = $('<input>').attr('placeholder','filter');
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function filterLayers(rex, layers) {
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var found = false;
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layers.forEach(function(l){
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// Layer Group
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if (l.getLayers) {
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if (filterLayers(rex, l.getLayers().getArray())) {
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l.set('noLayer', false);
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found = true;
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} else {
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l.set('noLayer', true);
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}
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} else {
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if (rex.test(l.get('title'))) {
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l.setVisible(true);
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found = true;
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} else {
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l.setVisible(false);
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}
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}
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});
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return found;
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}
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search.on('keyup change', function(){
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var rex = new RegExp(search.val(), 'i');
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filterLayers(rex, layers);
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// Force layer switcher redraw
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lswitcher.drawPanel()
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});
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// Add search input in the switcher header
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lswitcher.setHeader(search.get(0));
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// When switcher is drawn hide/show the list item according to its visility
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lswitcher.on('drawlist', function(e) {
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// Hide Layer Group with no layers visible
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if (e.layer.getLayers) {
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if (e.layer.get('noLayer')) {
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$(e.li).hide();
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} else {
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$(e.li).show();
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}
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} else {
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if (e.layer.getVisible()) {
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$(e.li).show();
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} else {
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$(e.li).hide();
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}
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}
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});
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</script>
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</body>
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</html> |