Merge pull request #2443 from tonio/tile-vector

More data in tile-vector examples
openlayers · Aug 18, 2014 · 344452b · 344452b
2 parents b92a033 + 49299df
commit 344452b
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Showing 2 changed files with 106 additions and 2 deletions.
diff --git a/examples/tile-vector.html b/examples/tile-vector.html
@@ -9,6 +9,12 @@
     <link rel="stylesheet" href="../resources/layout.css" type="text/css">
     <link rel="stylesheet" href="../resources/bootstrap/css/bootstrap-responsive.min.css" type="text/css">
     <title>Tile vector example</title>
+    <style>
+      #map {
+        max-width: 600px;
+        margin: 0 auto;
+      }
+    </style>
   </head>
   <body>
 
@@ -36,6 +42,16 @@ <h4 id="title">Tile vector example</h4>
           <div id="docs">
             <p>See the <a href="tile-vector.js" target="_blank">tile-vector.js source</a> to see how this is done.</p>
           </div>
+          <div class="alert">
+            <strong>Warning</strong> Map is becoming unresponsive with too many layers.
+          </div>
+          <fieldset>
+            <legend>Layers</legend>
+            <label class="checkbox"><input type="checkbox" id="landuse"/> Landuse</label>
+            <label class="checkbox"><input type="checkbox" id="buildings"/> Buildings</label>
+            <label class="checkbox"><input type="checkbox" id="water" checked/> Water</label>
+            <label class="checkbox"><input type="checkbox" id="roads" checked/> Roads</label>
+          </fieldset>
           <div id="tags">tile-vector, openstreetmap</div>
         </div>
 

diff --git a/examples/tile-vector.js b/examples/tile-vector.js
@@ -73,13 +73,101 @@ var roadLayer = new ol.layer.Vector({
   }
 });
 
+var buildingStyle = [
+  new ol.style.Style({
+    fill: new ol.style.Fill({
+      color: '#666',
+      opacity: 0.4
+    }),
+    stroke: new ol.style.Stroke({
+      color: '#444',
+      width: 1
+    })
+  })
+];
+var buildingLayer = new ol.layer.Vector({
+  source: new ol.source.TileVector({
+    format: new ol.format.TopoJSON({
+      defaultProjection: 'EPSG:4326'
+    }),
+    projection: 'EPSG:3857',
+    tileGrid: new ol.tilegrid.XYZ({
+      maxZoom: 19
+    }),
+    url: 'http://{a-c}.tile.openstreetmap.us/' +
+        'vectiles-buildings/{z}/{x}/{y}.topojson'
+  }),
+  visible: false,
+  style: function(f, resolution) {
+    return (resolution < 10) ? buildingStyle : [];
+  }
+});
+
+var landuseStyleCache = {};
+var landuseLayer = new ol.layer.Vector({
+  source: new ol.source.TileVector({
+    format: new ol.format.TopoJSON({
+      defaultProjection: 'EPSG:4326'
+    }),
+    projection: 'EPSG:3857',
+    tileGrid: new ol.tilegrid.XYZ({
+      maxZoom: 19
+    }),
+    url: 'http://{a-c}.tile.openstreetmap.us/' +
+        'vectiles-land-usages/{z}/{x}/{y}.topojson'
+  }),
+  visible: false,
+  style: function(feature, resolution) {
+    var kind = feature.get('kind');
+    var styleKey = kind;
+    var styleArray = landuseStyleCache[styleKey];
+    if (!styleArray) {
+      var color, width;
+      color = {
+        'parking': '#ddd',
+        'industrial': '#aaa',
+        'urban area': '#aaa',
+        'park': '#76C759',
+        'school': '#DA10E7',
+        'garden': '#76C759',
+        'pitch': '#D58F8D',
+        'scrub': '#3E7D28',
+        'residential': '#4C9ED9'
+      }[kind];
+      width = kind == 'highway' ? 1.5 : 1;
+      styleArray = [new ol.style.Style({
+        stroke: new ol.style.Stroke({
+          color: color,
+          width: width
+        }),
+        fill: new ol.style.Fill({
+          color: color,
+          opacity: 0.5
+        })
+      })];
+      landuseStyleCache[styleKey] = styleArray;
+    }
+    return styleArray;
+  }
+});
+
 var map = new ol.Map({
-  layers: [waterLayer, roadLayer],
+  layers: [landuseLayer, buildingLayer, waterLayer, roadLayer],
   renderer: 'canvas',
   target: document.getElementById('map'),
   view: new ol.View({
     center: ol.proj.transform([-74.0064, 40.7142], 'EPSG:4326', 'EPSG:3857'),
     maxZoom: 19,
-    zoom: 14
+    zoom: 15
   })
 });
+
+$('input[type=checkbox]').on('change', function() {
+  var layer = {
+    landuse: landuseLayer,
+    buildings: buildingLayer,
+    water: waterLayer,
+    roads: roadLayer
+  }[$(this).attr('id')];
+  layer.setVisible(!layer.getVisible());
+});