/* * Copyright 2003-2006, 2009, 2017, 2020 United States Government, as represented * by the Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The NASAWorldWind/WebWorldWind platform is licensed under the Apache License, * Version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License * at http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR * CONDITIONS OF ANY KIND, either express or implied. See the License for the * specific language governing permissions and limitations under the License. * * NASAWorldWind/WebWorldWind also contains the following 3rd party Open Source * software: * * ES6-Promise – under MIT License * libtess.js – SGI Free Software License B * Proj4 – under MIT License * JSZip – under MIT License * * A complete listing of 3rd Party software notices and licenses included in * WebWorldWind can be found in the WebWorldWind 3rd-party notices and licenses * PDF found in code directory. */ /** * Shows how to cause an image layer's imagery to be re-retrieved from its origin. You should do this only if you * know the imagery is changing at the server. */ requirejs(['./WorldWindShim', './LayerManager'], function (WorldWind, LayerManager) { "use strict"; // Tell WorldWind to log only warnings and errors. WorldWind.Logger.setLoggingLevel(WorldWind.Logger.LEVEL_WARNING); // Create the WorldWindow. var wwd = new WorldWind.WorldWindow("canvasOne"); var layerToRefresh = new WorldWind.BMNGLayer(); // Create and add layers to the WorldWindow, including our previously created layer to be refreshed. var layers = [ // Imagery layer. {layer: layerToRefresh, enabled: true}, // Add atmosphere layer on top of imagery layer. {layer: new WorldWind.AtmosphereLayer(), enabled: true}, // WorldWindow UI layers. {layer: new WorldWind.CompassLayer(), enabled: true}, {layer: new WorldWind.CoordinatesDisplayLayer(wwd), enabled: true}, {layer: new WorldWind.ViewControlsLayer(wwd), enabled: true} ]; for (var l = 0; l < layers.length; l++) { layers[l].layer.enabled = layers[l].enabled; wwd.addLayer(layers[l].layer); } // Set up to refresh the imagery periodically. setInterval(function () { layerToRefresh.refresh(); wwd.redraw(); }, 20000); // Refresh every 20 seconds. // Create a layer manager for controlling layer visibility. var layerManager = new LayerManager(wwd); });