Changeset 131

Timestamp:

Oct 22, 2006, 10:49:03 AM (14 years ago)

Author:

David Sheldon

Message:

Form to zoom to a town name. Uses geonames.

Location:

trunk/npemap.org.uk/static

Files:

• index.html (modified) (2 diffs)
• tiles/jscoord-1.1.1.js (added)
• tiles/jsr_class.js (added)
• tiles/uncompressed (added)
• tiles/uncompressed/jscoord-1.1.1.js (added)
• tiles/uncompressed/jsr_class.js (added)

trunk/npemap.org.uk/static/index.html

@@ -8 +8 @@
 <script src="tiles/dom.js"></script> 
 <script src="tiles/event.js"></script> 
+<script src="tiles/jsr_class.js"></script> 
+<script src="tiles/jscoord-1.1.1.js"></script> 
 <div id="body">
 <h1>New Popular Mapping<sup>beta</sup></h1>
@@ -42 +44 @@
 <a href="#" id="link">
 <img src="thumbnail.jpg" style="border: none" />
-</a> </div>
+</a>
+
+<form onsubmit="return find()">
+<p><label for="where">Place Name</label>
+<input id="where" name="where" /></p>
+<p><input type="submit" name="Zoom To" /></p>
+</form>
+</div>
 
 <script type="text/javascript">
 var xOffset = 62;
+
+function find() {
+   request = 'http://ws.geonames.org/searchJSON?name=' +  encodeURIComponent(document.getElementById('where').value)  + '&maxRows=1&callback=getLocation&country=GB&fclass=P&style=SHORT';
+  aObj = new JSONscriptRequest(request);
+  // Build the script tag
+  aObj.buildScriptTag();
+  // Execute (add) the script tag
+  aObj.addScriptTag();
+  return false;
+}
+
+// this function will be called by our JSON callback
+function getLocation(jData) {
+  if (jData == null) {
+    // There was a problem parsing search results
+    return;
+  }
+
+  var geonames = jData.geonames;
+  if (geonames.length > 0) {
+    var name = geonames[0];
+    var ll = new LatLng(name.lat,name.lng);
+    ll.WGS84ToOSGB36();
+    var en = ll.toOSRef();
+    var easting = Math.round(en.easting/1000);
+    var northing = Math.round(en.northing/1000);
+    window.location = "tiles/map.html#" + easting + "," + northing + ",1";
+  }
+  else {
+    alert("Sorry, can't find that location"); 
+  }
+}
+
+
 
 function click(e) {