Форумы GIS-Lab.info

Код: Выделить всё

var wmsLayer = new OpenLayers.Layer.WMS("WMS", url,
  {
    transparent: true,
    format: "image/png"
  },
  {
   displayInLayerSwitcher: false,
   visibility: false
  });

mapControl.addLayer(wmsLayer);

var allLayers = [];

function applyLayerVisibility()
{
  var layers = [];
  for( var i = 0; i < allLayers.length; i++ )
  {
    var layer = allLayers[i];
    if( vehicleLayer.getVisibility() )
      layers.push(layer.layer_id);
  }

  if( layers.length > 0 )
  {
     wmsLayer.mergeNewParams(
     {
       layers: layers.join()
     });

    wmsLayer.setVisibility(true);
  }
  else
  {
    wmsLayer.setVisibility(false);
  }
}

var layer1 = new OpenLayers.Layer("Layer 1",
  {
     layer_id: "layer1",
     eventListeners: {
       "visibilitychanged": applyLayerVisibility
     };
 });

mapControl.addLayer(layer1);

allLayers.push(layer1);