[OpenLayers-Users] fractionalZoom : bug with worldwind layers ?

[Jean Pommier (IGE)]

Hi,

Looks like fractionalZoom does not like worldwind layers...
When fractionalZoom is set to true, i've got a pb with worldwind layers.
When zooming, worldwind layers' tiles show in pink, as if it couldn't find
any. Even, apparently, at normal, integer levels of zoom.
You can easily experiment it with this slightly modified version of the
worldwind example :
    <script type="text/javascript">
        var map, ol_wms, ww, ww2;
        function init(){
            map = new OpenLayers.Map('map', {'maxResolution': .28125,
tileSize: new OpenLayers.Size(512, 512),  controls: []});

            ol_wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
            "http://labs.metacarta.com/wms/vmap0?", {layers: 'basic'} );

            ww = new OpenLayers.Layer.WorldWind( "Bathy",
            "http://worldwind25.arc.nasa.gov/tile/tile.aspx?", 36, 4,
            {T:"bmng.topo.bathy.200406"});
            ww2 = new OpenLayers.Layer.WorldWind( "LANDSAT",
                "http://worldwind25.arc.nasa.gov/tile/tile.aspx", 2.25, 4,
                {T:"105"});



            map.addLayers([ol_wms, ww, ww2]);
            map.addControl(new OpenLayers.Control.LayerSwitcher());
                       map.addControl(new OpenLayers.Control.PanZoomBar());
            map.addControl(new OpenLayers.Control.MouseToolbar());

            map.setCenter(new OpenLayers.LonLat(-71.4, 42.3), 6);
            map.fractionalZoom = true;
        }
    </script>

Jean

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