hi all,
i 've got a problem with nested layer,i set google as baselayer,
wms,wfs,and kml as overlayers.I can show individual of them,but i
cant nested them all,maybe some difference of projection ,
Is there anyway that I can nested them.
follow is my code:
////////////////////////////////////
var map;
function init(){
OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;
OpenLayers.Util.onImageLoadErrorColor = "transparent";
var bounds = new OpenLayers.Bounds(
243000,466000,257000,482000//242300, 465200,257700,
482800//
);
var options = {
projection: new OpenLayers.Projection("EPSG:900913"),
displayProjection: new OpenLayers.Projection("EPSG:4326"),
units: "m",
maxResolution: 156543.0339,
maxExtent: bounds
};
map = new OpenLayers.Map('map',options); // nothing display
when i add options
//map = new OpenLayers.Map('map');// i can nested them except
wfs when no options
var googlehybrid = new OpenLayers.Layer.Google( "Google Hybrid" ,
{type:G_HYBRID_MAP,isBaseLayer: true});
wms = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://192.168.0.105:8081/geoserver/wms";, {layers:
'topp:SW_PIPE',maxExtent: bounds,maxResolution: '68.75',projection:
"EPSG:28992",units: 'm',tiled: 'true',transparent: true}
//{reproject: true,opacity:
0.8,isBaseLayer: false}
);
//layer1.transparent=true;
wms.isBaseLayer=false;
var wfs = new OpenLayers.Layer.WFS( "WFS",
"http://192.168.0.105:8081/geoserver/wfs";,
{typename: 'topp:RD_ROAD_OBJECT'},
{
typename: 'topp:RD_ROAD_OBJECT',
featureNS: 'http://www.openplans.org/topp',
extractAttributes: false,
visibility:false
},{ featureClass: OpenLayers.Feature.WFS});
kml=new OpenLayers.Layer.GML("KML0",
"http://192.168.0.125:8080/geoserver/www/sw4.kml";,
{
format: OpenLayers.Format.KML,
formatOptions: {
extractStyles: true,
extractAttributes: false
}
});
map.addLayers([googlehybrid,wms,wfs,kml]);
map.setCenter(new
OpenLayers.LonLat(6.785026240707595,52.27358741413968), 13);
map.addControl( new OpenLayers.Control.LayerSwitcher() );
}
///////////////////////////////////////////////////////
Thanks in advance
cwest
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