উত্তর:
দেখে মনে হয়েছে যে এটির পক্ষে তথ্য খুঁজে পাওয়া আমার পক্ষে যথেষ্ট কঠিন ছিল তবে আমি এটি যুক্ত করব:
1)
কেএমএল স্তরটি তৈরি করুন:
//Define your KML layer
var MyKmlLayer= new OpenLayers.Layer.Vector("This Is My KML Layer", {
//Set your projection and strategies//
projection: new OpenLayers.Projection("EPSG:4326"),
strategies: [new OpenLayers.Strategy.Fixed()],
//set the protocol with a url//
protocol: new OpenLayers.Protocol.HTTP({
//set the url to your variable//
url: mykmlurl,
//format this layer as KML//
format: new OpenLayers.Format.KML({
//maxDepth is how deep it will follow network links//
maxDepth: 1,
//extract styles from the KML Layer//
extractStyles: true,
//extract attributes from the KML Layer//
extractAttributes: true
})
})
});2)
কেএমএল স্তরটির জন্য ইউআরএল সেট করুন:
//note that I have host equal to location// //Math.Random will stop caching//
var mykmlurl= 'http://' + host + '/KML?key=' + Math.random();3)
আপনার স্তরটি রিফ্রেশ করার জন্য বিরতিটি সেট করুন:
//function called// //timer// //layer to refresh//
window.setInterval(UpdateKmlLayer, 5000, MyKmlLayer);4)
স্তরটি আপডেট করার জন্য ফাংশন:
function UpdateKmlLayer(layer) {
//setting loaded to false unloads the layer//
layer.loaded = false;
//setting visibility to true forces a reload of the layer//
layer.setVisibility(true);
//the refresh will force it to get the new KML data//
layer.refresh({ force: true, params: { 'key': Math.random()} });
//- <3 from Thqr -//
}আশা করে এটি এটি অন্য কারও পক্ষে সহজ করে তোলে। শুভকামনা।
আমি এটিকে ঘিরে ধরেছিলাম কোনও লাভ হয়নি। কেউ আমার কোডটি একবার দেখে আমাকে বলছেন যে আমি কী ভুল করছি? ধন্যবাদ!
<html>
<head>
<title>Test</title>
<link rel="stylesheet" href="http://openlayers.org/api/theme/default/style.css" type="text/css" />
<link rel="stylesheet" href="http://openlayers.org/dev/examples/style.css" type="text/css" />
<script src='http://maps.google.com/maps?file=api&v=2&key=ABQIAAAAl9RMqSzhPUXAfeBCXOussRTQDbvAygy0cfGJr8dEMAYKf3RWNBQqP9mjKIsqTfmAlz5LOJ3Xpy5s4w'></script>
<script src="http://openlayers.org/api/OpenLayers.js"></script>
<script type="text/javascript">
var map;
function init() {
// Create the map object
map = new OpenLayers.Map('map');
// Create a Google layer
var gmap = new OpenLayers.Layer.Google(
"Google Streets", // the default
{numZoomLevels: 20}
);
// Add layer to map
map.addLayer(gmap);
map.setCenter(new OpenLayers.LonLat(-112.1161, 33.6636), 13);
}
var MyKmlLayer= new OpenLayers.Layer.Vector("This Is My KML Layer", {
//Set your projection and strategies//
projection: new OpenLayers.Projection("EPSG:4326"),
strategies: [new OpenLayers.Strategy.Fixed()],
//set the protocol with a url//
protocol: new OpenLayers.Protocol.HTTP({
//set the url to your variable//
url: C:/Users/person/desktop/test.kml,
//format this layer as KML//
format: new OpenLayers.Format.KML({
//maxDepth is how deep it will follow network links//
maxDepth: 1,
//extract styles from the KML Layer//
extractStyles: true,
//extract attributes from the KML Layer//
extractAttributes: true
})
})
});
var proposedanchorpositionurl = 'http://' + host + '/KML?key=' + Math.random();
window.setInterval(UpdateKmlLayer, 5000, MyKmlLayer);
function UpdateKmlLayer(layer) {
//setting loaded to false unloads the layer//
layer.loaded = false;
//setting visibility to true forces a reload of the layer//
layer.setVisibility(true);
//the refresh will force it to get the new KML data//
layer.refresh({ force: true, params: { 'key': Math.random()} });
//- <3 from Thqr -//
}
</script>
</head>
<body onload="init()">
<h1 id="title">test</h1>
<div id="map" class=""></div>
</body>
</html>তাই দুঃখিত, আমাকে আপনার অসম্পূর্ণ কোডগুলি সংশোধন করতে হয়েছিল। এই সময় চালানো উচিত।
আপনি রিফ্রেশ কৌশলটি দেখতে চাইতে পারেন। http://dev.openlayers.org/releases/OpenLayers-2.11/doc/apidocs/files/OpenLayers/Strategy/Refresh-js.html
অরক্ষিত কিন্তু এই জাতীয় কিছু?
<script src="http://openlayers.org/api/OpenLayers.js"></script>
<script type="text/javascript">
var map;
function init() {
// Create the map object
map = new OpenLayers.Map('map');
// Create a Google layer
var gmap = new OpenLayers.Layer.Google(
"Google Streets", // the default
{numZoomLevels: 20}
);
// Add layer to map
map.addLayer(gmap);
map.setCenter(new OpenLayers.LonLat(-112.1161, 33.6636), 13);
var KMLURL = 'C:/Users/person/desktop/test.kml?' + Math.random();
var MyKmlLayer= new OpenLayers.Layer.Vector("This Is My KML Layer", {
//Set your projection and strategies//
projection: new OpenLayers.Projection("EPSG:4326"),
strategies: [new OpenLayers.Strategy.Fixed()],
//set the protocol with a url//
protocol: new OpenLayers.Protocol.HTTP({
//set the url to your variable//
url: KMLURL,
//format this layer as KML//
format: new OpenLayers.Format.KML({
//maxDepth is how deep it will follow network links//
maxDepth: 1,
//extract styles from the KML Layer//
extractStyles: true,
//extract attributes from the KML Layer//
extractAttributes: true
})
})
});
window.setInterval(UpdateKmlLayer, 5000, MyKmlLayer);
function UpdateKmlLayer(layer) {
//setting loaded to false unloads the layer//
layer.loaded = false;
//setting visibility to true forces a reload of the layer//
layer.setVisibility(true);
//the refresh will force it to get the new KML data//
layer.refresh({ force: true, params: { 'key': Math.random()} });
//- <3 from Thqr -//
}
}
</script>