code: function () {
              RenderableLayer.call(this, "Blue Marble Image");
  
              var surfaceImage = new SurfaceImage(Sector.FULL_SPHERE,
                  WorldWind.configuration.baseUrl + "images/BMNG_world.topo.bathy.200405.3.2048x1024.jpg");
  
              this.addRenderable(surfaceImage);
  
              this.pickEnabled = false;
              this.minActiveAltitude = 3e6;
          }
docs: Constructs a Blue Marble image layer that spans the entire globe.
  @alias BMNGOneImageLayer
  @constructor
  @augments RenderableLayer
  @classdesc Displays a Blue Marble image layer that spans the entire globe with a single image.