text: /*global define*/
  define([
          '../../Core/buildModuleUrl',
          '../../Scene/ArcGisMapServerImageryProvider',
          '../../Scene/BingMapsImageryProvider',
          '../../Scene/BingMapsStyle',
          '../../Scene/createOpenStreetMapImageryProvider',
          '../../Scene/createTileMapServiceImageryProvider',
          '../../Scene/MapboxImageryProvider',
          '../BaseLayerPicker/ProviderViewModel'
      ], function(
          buildModuleUrl,
          ArcGisMapServerImageryProvider,
          BingMapsImageryProvider,
          BingMapsStyle,
          createOpenStreetMapImageryProvider,
          createTileMapServiceImageryProvider,
          MapboxImageryProvider,
          ProviderViewModel) {
      'use strict';
  
      /**
       * @private
       */
      function createDefaultImageryProviderViewModels() {
          var providerViewModels = [];
          providerViewModels.push(new ProviderViewModel({
              name : 'Bing Maps Aerial',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/bingAerial.png'),
              tooltip : 'Bing Maps aerial imagery \nhttp://www.bing.com/maps',
              creationFunction : function() {
                  return new BingMapsImageryProvider({
                      url : 'https://dev.virtualearth.net',
                      mapStyle : BingMapsStyle.AERIAL
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'Bing Maps Aerial with Labels',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/bingAerialLabels.png'),
              tooltip : 'Bing Maps aerial imagery with label overlays \nhttp://www.bing.com/maps',
              creationFunction : function() {
                  return new BingMapsImageryProvider({
                      url : 'https://dev.virtualearth.net',
                      mapStyle : BingMapsStyle.AERIAL_WITH_LABELS
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'Bing Maps Roads',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/bingRoads.png'),
              tooltip : 'Bing Maps standard road maps\nhttp://www.bing.com/maps',
              creationFunction : function() {
                  return new BingMapsImageryProvider({
                      url : 'https://dev.virtualearth.net',
                      mapStyle : BingMapsStyle.ROAD
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name: 'Mapbox Satellite',
              tooltip: 'Mapbox satellite imagery https://www.mapbox.com/maps/',
              iconUrl: buildModuleUrl('Widgets/Images/ImageryProviders/mapboxSatellite.png'),
              creationFunction: function() {
                  return new MapboxImageryProvider({
                      mapId: 'mapbox.satellite'
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name: 'Mapbox Streets',
              tooltip: 'Mapbox streets imagery https://www.mapbox.com/maps/',
              iconUrl: buildModuleUrl('Widgets/Images/ImageryProviders/mapboxTerrain.png'),
              creationFunction: function() {
                  return new MapboxImageryProvider({
                      mapId: 'mapbox.streets'
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name: 'Mapbox Streets Classic',
              tooltip: 'Mapbox streets basic imagery https://www.mapbox.com/maps/',
              iconUrl: buildModuleUrl('Widgets/Images/ImageryProviders/mapboxStreets.png'),
              creationFunction: function() {
                  return new MapboxImageryProvider({
                      mapId: 'mapbox.streets-basic'
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'ESRI World Imagery',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/esriWorldImagery.png'),
              tooltip : '\
  World Imagery provides one meter or better satellite and aerial imagery in many parts of the world and lower resolution \
  satellite imagery worldwide.  The map includes NASA Blue Marble: Next Generation 500m resolution imagery at small scales \
  (above 1:1,000,000), i-cubed 15m eSAT imagery at medium-to-large scales (down to 1:70,000) for the world, and USGS 15m Landsat \
  imagery for Antarctica. The map features 0.3m resolution imagery in the continental United States and 0.6m resolution imagery in \
  parts of Western Europe from DigitalGlobe. In other parts of the world, 1 meter resolution imagery is available from GeoEye IKONOS, \
  i-cubed Nationwide Prime, Getmapping, AeroGRID, IGN Spain, and IGP Portugal.  Additionally, imagery at different resolutions has been \
  contributed by the GIS User Community.\nhttp://www.esri.com',
              creationFunction : function() {
                  return new ArcGisMapServerImageryProvider({
                      url : 'https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer',
                      enablePickFeatures : false
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'ESRI World Street Map',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/esriWorldStreetMap.png'),
              tooltip : '\
  This worldwide street map presents highway-level data for the world. Street-level data includes the United States; much of \
  Canada; Japan; most countries in Europe; Australia and New Zealand; India; parts of South America including Argentina, Brazil, \
  Chile, Colombia, and Venezuela; Ghana; and parts of southern Africa including Botswana, Lesotho, Namibia, South Africa, and Swaziland.\n\
  http://www.esri.com',
              creationFunction : function() {
                  return new ArcGisMapServerImageryProvider({
                      url : 'https://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer',
                      enablePickFeatures : false
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'ESRI National Geographic',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/esriNationalGeographic.png'),
              tooltip : '\
  This web map contains the National Geographic World Map service. This map service is designed to be used as a general reference map \
  for informational and educational purposes as well as a basemap by GIS professionals and other users for creating web maps and web \
  mapping applications.\nhttp://www.esri.com',
              creationFunction : function() {
                  return new ArcGisMapServerImageryProvider({
                      url : 'https://services.arcgisonline.com/ArcGIS/rest/services/NatGeo_World_Map/MapServer/',
                      enablePickFeatures : false
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'Open\u00adStreet\u00adMap',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/openStreetMap.png'),
              tooltip : 'OpenStreetMap (OSM) is a collaborative project to create a free editable map \
  of the world.\nhttp://www.openstreetmap.org',
              creationFunction : function() {
                  return createOpenStreetMapImageryProvider({
                      url : 'https://a.tile.openstreetmap.org/'
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'Stamen Watercolor',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/stamenWatercolor.png'),
              tooltip : 'Reminiscent of hand drawn maps, Stamen watercolor maps apply raster effect \
  area washes and organic edges over a paper texture to add warm pop to any map.\nhttp://maps.stamen.com',
              creationFunction : function() {
                  return createOpenStreetMapImageryProvider({
                      url : 'https://stamen-tiles.a.ssl.fastly.net/watercolor/',
                      credit : 'Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under CC BY SA.'
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'Stamen Toner',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/stamenToner.png'),
              tooltip : 'A high contrast black and white map.\nhttp://maps.stamen.com',
              creationFunction : function() {
                  return createOpenStreetMapImageryProvider({
                      url : 'https://stamen-tiles.a.ssl.fastly.net/toner/',
                      credit : 'Map tiles by Stamen Design, under CC BY 3.0. Data by OpenStreetMap, under CC BY SA.'
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'The Black Marble',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/blackMarble.png'),
              tooltip : 'The lights of cities and villages trace the outlines of civilization in this global view of the \
  Earth at night as seen by NASA/NOAA\'s Suomi NPP satellite.',
              creationFunction : function() {
                  return createTileMapServiceImageryProvider({
                      url : 'https://cesiumjs.org/blackmarble',
                      flipXY : true,
                      credit : 'Black Marble imagery courtesy NASA Earth Observatory'
                  });
              }
          }));
  
          providerViewModels.push(new ProviderViewModel({
              name : 'Natural Earth\u00a0II',
              iconUrl : buildModuleUrl('Widgets/Images/ImageryProviders/naturalEarthII.png'),
              tooltip : 'Natural Earth II, darkened for contrast.\nhttp://www.naturalearthdata.com/',
              creationFunction : function() {
                  return createTileMapServiceImageryProvider({
                      url : buildModuleUrl('Assets/Textures/NaturalEarthII')
                  });
              }
          }));
  
          return providerViewModels;
      }
  
      return createDefaultImageryProviderViewModels;
  });
  