[OpenLayers-Users] Virtual Earth Issue

Wed May 13 12:57:54 EDT 2009

I try the 'restrictedExtent' option, but nothing change. Maybe I need to use
virtual earth alone without openlayers in my case?

Christopher Schmidt-2 wrote:
> 
> On Wed, May 13, 2009 at 02:48:03AM -0700, willson wrote:
>> 
>> I try to use the "spherical-mercator" example in openlayers/example to
>> display mycity. I just change the map options "maxResolution" and
>> "maxExtent". 
> 
> You can't do this -- at least not easily -- with spherical mercator
> layers.
> I recommend using 'restrictedExtent' for the latter, and I don't think
> there's a way to do the former.
> 
> -- Chris
> 
>> The question is : the map doesn't display mycity but whole
>> china, when I zoom in, the map center goes to africa, and the map can't
>> pan.
>> All seems strange.
>> Here is the code, any help would be appreciate!
>> 
>> <html xmlns="http://www.w3.org/1999/xhtml">
>>   <head>
>>     <link rel="stylesheet" href="../theme/default/style.css"
>> type="text/css"
>> />
>>     <link rel="stylesheet" href="style.css" type="text/css" />
>>     <style type="text/css">
>>         .olControlAttribution { bottom: 0px!important }
>>         #map {
>>             height: 512px;
>>         }
>>     </style>
>> 	
>>     <script
>> src="http://dev.ditu.live.com/mapcontrol/mapcontrol.ashx?v=6.1"></script>
>>     
>>     <script src="../lib/OpenLayers.js"></script>
>>     <script type="text/javascript">
>> 
>>         // make map available for easy debugging
>>         var map;
>> 
>>         // avoid pink tiles
>>         OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;
>>         OpenLayers.Util.onImageLoadErrorColor = "transparent";
>> 
>>         function init(){
>>             var options = {
>>                 maxResolution: 0.002805990515625,
>>                 maxExtent: new OpenLayers.Bounds(113.03035471400001,
>> 22.125695214,		                                                    
>> 113.74868828599999, 22.844028786)			
>>             };
>>             map = new OpenLayers.Map('map', options);
>> 			
>> 
>> 
>>             // create Virtual Earth layers
>>             var veroad = new OpenLayers.Layer.VirtualEarth(
>>                 "Virtual Earth Roads",
>>                 {'type': VEMapStyle.Road, 'sphericalMercator': true}
>>             );
>>             var veaer = new OpenLayers.Layer.VirtualEarth(
>>                 "Virtual Earth Aerial",
>>                 {'type': VEMapStyle.Aerial, 'sphericalMercator': true}
>>             );
>>             var vehyb = new OpenLayers.Layer.VirtualEarth(
>>                 "Virtual Earth Hybrid",
>>                 {'type': VEMapStyle.Hybrid, 'sphericalMercator': true}
>>             );
>> 
>>             
>> 
>>             map.addLayers([veroad, veaer, vehyb]);
>>             map.addControl(new OpenLayers.Control.LayerSwitcher());
>>             map.addControl(new
>> OpenLayers.Control.EditingToolbar(vector));
>>             map.addControl(new OpenLayers.Control.Permalink());
>>             map.addControl(new OpenLayers.Control.MousePosition());
>>             if (!map.getCenter()) {map.zoomToMaxExtent()}
>>         }
>> 
>>     </script>
>>   </head>
>>   <body onload="init()">
>>     <h1 id="title">OpenLayers Spherical Mercator Example</h1>
>> 
>>     <div id="tags">
>>     </div>
>>     
>>     <div id="map" class="smallmap"></div>
>> 
>>     <div id="docs">
>>     </div>
>>   </body>
>> </html>
>> 
>> 
>> 
>> 
>> -- 
>> View this message in context:
>> http://n2.nabble.com/Virtual-Earth-Issue-tp2880849p2880849.html
>> Sent from the OpenLayers Users mailing list archive at Nabble.com.
>> 
>> _______________________________________________
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>> http://openlayers.org/mailman/listinfo/users
> 
> -- 
> Christopher Schmidt
> MetaCarta
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users
> 
> 

-- 
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