Hello, I am trying to show the World Wind GeoCover 2000 tiles in OpenLayers.
I am using the following config: <LevelZeroTileSizeDegrees>2.25</LevelZeroTileSizeDegrees> <NumberLevels>6</NumberLevels> <TextureSizePixels>512</TextureSizePixels> <ImageFileExtension>jpg</ImageFileExtension> - <ImageTileService> <ServerUrl>http://worldwind25.arc.nasa.gov/tile/tile.aspx</ServerUrl> <DataSetName>geocover2000</DataSetName> of GeoCover 2000 from http://worldwind25.arc.nasa.gov/layerConfig/earthimages.xml You can see the tiles e.g. http://worldwind25.arc.nasa.gov/tile/tile.aspx?T=geocover2000&L=2&X=358&Y=246 I understand the World Wind maxResolution on Level zero : 36 degree http://issues.worldwind.arc.nasa.gov/confluence/download/attachments/394/world+wind+tile+systemt.gif The resolution is unit per pixels => Resolution (level zero) := 36 / 512 = 0.0703125 this is equivalent to LZTD (level zero tiles degree) = 2.25 ? So I am trying with following snippet: <script type="text/javascript"> var map; function init(){ var mapOptions = { maxResolution: 0.0703125, numZoomLevels: 21}; map = new OpenLayers.Map('map', mapOptions); var ww = new OpenLayers.Layer.WorldWind( "GeoCover 2000", "http://worldwind25.arc.nasa.gov/tile/tile.aspx?";, 2.25, 6, {T:"geocover2000"}, { tileSize: new OpenLayers.Size(512,512) }); map.addLayers([ww]); map.addControl(new OpenLayers.Control.LayerSwitcher()); map.setCenter(new OpenLayers.LonLat(-71.446875, 41.73515625), 15); } </script> but wihout success, the tile result is ../img/blank.gif . I am afraid that I don't understand the usage of World Wind in OpenLayers. Regards Friedhold -- View this message in context: http://n2.nabble.com/World-Wind-tiles-of-GeoCover-2000---not-success-tp3362489p3362489.html Sent from the OpenLayers Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
