[OpenLayers-Commits] r4203 - trunk/openlayers/examples
commits at openlayers.org
commits at openlayers.org
Mon Sep 10 13:55:59 EDT 2007
Author: tschaub
Date: 2007-09-10 13:55:58 -0400 (Mon, 10 Sep 2007)
New Revision: 4203
Added:
trunk/openlayers/examples/vector-formats.html
Log:
copying geojson.html to vector-formats.html - this will be the place to demo all read/write vector formats
Added: trunk/openlayers/examples/vector-formats.html
===================================================================
--- trunk/openlayers/examples/vector-formats.html (rev 0)
+++ trunk/openlayers/examples/vector-formats.html 2007-09-10 17:55:58 UTC (rev 4203)
@@ -0,0 +1,166 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <title>Vector Formats</title>
+ <style type="text/css">
+ html, body {
+ margin: 0;
+ padding: 1em;
+ font: 0.9em Verdana, Arial, sans serif;
+ }
+ input, select, textarea {
+ font: 0.9em Verdana, Arial, sans-serif;
+ }
+ h2 {
+ margin-top: 0.75em;
+ font-size: 1.6em;
+ }
+ #leftcol {
+ position: absolute;
+ top: 0;
+ left: 1em;
+ padding: 0;
+ width: 455px;
+ }
+ #map {
+ width: 450px;
+ height: 225px;
+ border: 1px solid #ccc;
+ }
+ #input {
+ width: 450px;
+ }
+ #text {
+ font-size: 0.85em;
+ margin: 1em 0 1em 0;
+ width: 100%;
+ height: 10em;
+ }
+ #info {
+ position: relative;
+ padding: 2em 0;
+ margin-left: 470px;
+ }
+ #output {
+ font-size: 0.8em;
+ width: 100%;
+ height: 500px;
+ border: 0;
+ }
+ p {
+ margin: 0;
+ padding: 0.75em 0 0.75em 0;
+ }
+ </style>
+ <script src="../lib/Firebug/firebug.js"></script>
+ <script src="../lib/OpenLayers.js"></script>
+ <script type="text/javascript">
+ var map, vectors, formats;
+ function init(){
+ map = new OpenLayers.Map('map');
+ var wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
+ "http://labs.metacarta.com/wms/vmap0?", {layers: 'basic'});
+
+ vectors = new OpenLayers.Layer.Vector("Vector Layer");
+
+ map.addLayers([wms, vectors]);
+ map.addControl(new OpenLayers.Control.MousePosition());
+ map.addControl(new OpenLayers.Control.EditingToolbar(vectors));
+
+ var options = {
+ hover: true,
+ onSelect: serialize
+ };
+ var select = new OpenLayers.Control.SelectFeature(vectors, options);
+ map.addControl(select);
+ select.activate();
+
+ formats = {
+ wkt: new OpenLayers.Format.WKT(),
+ geojson: new OpenLayers.Format.GeoJSON()
+ };
+
+ map.setCenter(new OpenLayers.LonLat(0, 0), 1);
+ }
+
+ function serialize(feature) {
+ var type = document.getElementById("formatType").value;
+ // second argument for pretty printing (geojson only)
+ var pretty = document.getElementById("prettyPrint").checked;
+ var str = formats[type].write(feature, pretty);
+ // not a good idea in general, just for this demo
+ str = str.replace(/,/g, ', ');
+ document.getElementById('output').value = str;
+ }
+
+ function deserialize() {
+ var element = document.getElementById('text');
+ var type = document.getElementById("formatType").value;
+ var features = formats[type].read(element.value);
+ var bounds;
+ if(features) {
+ if(features.constructor != Array) {
+ features = [features];
+ }
+ for(var i=0; i<features.length; ++i) {
+ if (!bounds) {
+ bounds = features[i].geometry.getBounds();
+ } else {
+ bounds.extend(features[i].geometry.getBounds());
+ }
+
+ }
+ vectors.addFeatures(features);
+ map.zoomToExtent(bounds);
+ var plural = (features.length > 1) ? 's' : '';
+ element.value = features.length + ' feature' + plural + ' added'
+ } else {
+ element.value = 'Bad input ' + type;
+ }
+ }
+
+ // preload images
+ (function() {
+ var roots = ["draw_point", "draw_line", "draw_polygon", "pan"];
+ var onImages = [];
+ var offImages = [];
+ for(var i=0; i<roots.length; ++i) {
+ onImages[i] = new Image();
+ onImages[i].src = "../theme/default/img/" + roots[i] + "_on.png";
+ offImages[i] = new Image();
+ offImages[i].src = "../theme/default/img/" + roots[i] + "_on.png";
+ }
+ })();
+
+ </script>
+ </head>
+ <body onload="init()">
+ <div id="leftcol">
+ <h2>OpenLayers Vector Formats Example</h2>
+ <div id="map"></div>
+ <div id="input">
+ <p>Use the drop-down below to select the input/output format
+ for vector features. New features can be added by using the drawing
+ tools above or by pasting their text representation below.</p>
+ <label for="formatType">Format</label>
+ <select name="formatType" id="formatType">
+ <option value="geojson" selected="selected">GeoJSON</option>
+ <option value="wkt">Well-Known Text (WKT)</option>
+ </select>
+
+ <label for="prettyPrint">Pretty print</label>
+ <input id="prettyPrint" type="checkbox"
+ name="prettyPrint" value="1" />
+ <br />
+ <textarea id="text">paste text here...</textarea>
+ <br />
+ <input type="button" value="add feature" onclick="deserialize();" />
+ </div>
+ </div>
+ <div id="info">
+ <p>Use the tools to the left to draw new polygons, lines, and points.
+ After drawing some new features, hover over a feature to see the
+ serialized version below.</p>
+ <textarea id="output"></textarea>
+ </div>
+ </body>
+</html>
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