传单：如何在地图上显示所有图层？

Question

I am trying to create a button that when clicked will toggle on all the layers EXCEPT for some specific layers. I am unable to make this work.

How would I show all the layers except for the overlays named 'stuff' and 'stuff2'?

 var map = L.map("map"); L.tileLayer("http://{s}.tile.osm.org/{z}/{x}/{y}.png").addTo(map); map.setView([48.85, 2.35], 11); var airfields = L.marker([48.85, 2.35]).addTo(map); var docks = L.marker([48.85, 2.33]).addTo(map); var stuff = L.marker([48.83602344356167,2.3617172241210938]).addTo(map); var stuff2 = L.marker([48.840542852103084,2.3246383666992183]).addTo(map); $("#clearAll").click(function(event) { event.preventDefault(); $(".check").each(function(i, el) { el.checked = false; // Set new status (unchecked) first. $(el).change(); // Trigger the event. }) }); $(".check").change(function() { var layerClicked = $(this).attr("id"); switch (layerClicked) { case "airfields": toggleLayer(this.checked, airfields); break; case "docks": toggleLayer(this.checked, docks); break; case "stuff": toggleLayer(this.checked, stuff); break; case "stuff2": toggleLayer(this.checked, stuff2); break; // ...and so on... } }); function toggleLayer(checked, layer) { if (checked) { map.addLayer(layer); } else { map.removeLayer(layer); } } 

 #map { height: 300px; } 

 <script src="http://cdn.leafletjs.com/leaflet/v1.0.0-rc.1/leaflet.js"></script> <link href="http://cdn.leafletjs.com/leaflet/v1.0.0-rc.1/leaflet.css" rel="stylesheet"/> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <div id="map"></div> <br /> <input type="checkbox" id="airfields" class="check" checked>Airfields <br /> <input type="checkbox" id="docks" class="check" checked>Docks <br /> <input type="checkbox" id="stuff" class="check" checked>stuff <br /> <input type="checkbox" id="stuff2" class="check" checked>stuff2 <br /> <button id="clearAll"> Clear All </button> <button id="showAll"> Show All </button> 

Answer 1

Simply do the same as in "#clearAll" but force some checkboxes on and others off (your "stuff" and "stuff2" )

 var map = L.map("map"); L.tileLayer("http://{s}.tile.osm.org/{z}/{x}/{y}.png").addTo(map); map.setView([48.85, 2.35], 11); var airfields = L.marker([48.85, 2.35]).addTo(map); var docks = L.marker([48.85, 2.33]).addTo(map); var stuff = L.marker([48.83602344356167,2.3617172241210938]).addTo(map); var stuff2 = L.marker([48.840542852103084,2.3246383666992183]).addTo(map); $("#showAll").click(function(event) { event.preventDefault(); $("#airfields")[0].checked = true; $("#docks")[0].checked = true; $("#stuff")[0].checked = false; $("#stuff2")[0].checked = false; $(".check").each(function(i, el) { $(el).change(); // Trigger the event. }) }); $("#clearAll").click(function(event) { event.preventDefault(); $(".check").each(function(i, el) { el.checked = false; // Set new status (unchecked) first. $(el).change(); // Trigger the event. }) }); $(".check").change(function() { var layerClicked = $(this).attr("id"); switch (layerClicked) { case "airfields": toggleLayer(this.checked, airfields); break; case "docks": toggleLayer(this.checked, docks); break; case "stuff": toggleLayer(this.checked, stuff); break; case "stuff2": toggleLayer(this.checked, stuff2); break; // ...and so on... } }); function toggleLayer(checked, layer) { if (checked) { map.addLayer(layer); } else { map.removeLayer(layer); } } 

 #map { height: 300px; } 

 <script src="http://cdn.leafletjs.com/leaflet/v1.0.0-rc.1/leaflet.js"></script> <link href="http://cdn.leafletjs.com/leaflet/v1.0.0-rc.1/leaflet.css" rel="stylesheet"/> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <div id="map"></div> <br /> <input type="checkbox" id="airfields" class="check" checked>Airfields <br /> <input type="checkbox" id="docks" class="check" checked>Docks <br /> <input type="checkbox" id="stuff" class="check" checked>stuff <br /> <input type="checkbox" id="stuff2" class="check" checked>stuff2 <br /> <button id="clearAll"> Clear All </button> <button id="showAll"> Show All </button>