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https://github.com/NASAWorldWind/WebWorldWind.git
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59c52054bb
- BlueMarbleLayer name changed into BMNGRestLayer since the former was sometimes confused with BMNGLayer as the most regularly used layer based off Blue Marble Next Generation imagery. - The above class was modified in its constructor in order to be more in line with the other 'Rest-' layers. Now it can receive parameters regarding server address and path for data retrieval. Now it can be configured to retrieve its imagery either from worldwindserver.net (by default) or from a local folder. Two examples are making use of this layer: - The BlueMarbleTimeSeries example now retrieves its data from NASA's server, so it works 'right out of the box' without the need to download the standalone data package from World Wind server. - The 'Standalone' example now makes use of BMNGRestLayer configured to retrieve its data from a local folder. Related to issue #125
72 lines
2.9 KiB
JavaScript
72 lines
2.9 KiB
JavaScript
/*
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* Copyright (C) 2014 United States Government as represented by the Administrator of the
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* National Aeronautics and Space Administration. All Rights Reserved.
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*/
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/**
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* Displays a time series of the 12 months of Blue Marble imagery.
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*/
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requirejs(['../src/WorldWind',
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'./LayerManager'],
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function (ww,
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LayerManager) {
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"use strict";
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WorldWind.Logger.setLoggingLevel(WorldWind.Logger.LEVEL_WARNING);
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var wwd = new WorldWind.WorldWindow("canvasOne");
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var backgroundLayer = new WorldWind.BMNGOneImageLayer();
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backgroundLayer.hide = true; // Don't show it in the layer manager.
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wwd.addLayer(backgroundLayer);
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// Create the Blue Marble time series layer.
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var blueMarbleTimeSeries = new WorldWind.BMNGRestLayer(null);
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blueMarbleTimeSeries.enabled = false;
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blueMarbleTimeSeries.showSpinner = true;
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// Add Blue Marble time series to the World Window's layer list. Disable it until its images are preloaded,
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// which is initiated below.
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wwd.addLayer(blueMarbleTimeSeries);
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// Create a compass and view controls.
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wwd.addLayer(new WorldWind.CompassLayer());
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wwd.addLayer(new WorldWind.CoordinatesDisplayLayer(wwd));
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wwd.addLayer(new WorldWind.ViewControlsLayer(wwd));
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// Create a layer manager for controlling layer visibility.
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var layerManger = new LayerManager(wwd);
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// Ensure that the background and other control layers are displayed while the blue marble layer is
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// being pre-populated.
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wwd.redraw();
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// Wait for the layer to pre-populate all its sub-layers before enabling it.
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var prePopulateInterval = window.setInterval(function () {
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if (!this.prePopulate) {
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// Pre-populate the layer's sub-layers so that we don't see flashing of their image tiles as they're
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// loaded.
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blueMarbleTimeSeries.prePopulate(wwd);
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this.prePopulate = true;
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return;
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}
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// See if the layer is pre-populated now. If so, enable it.
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if (blueMarbleTimeSeries.isPrePopulated(wwd)) {
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blueMarbleTimeSeries.enabled = true;
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blueMarbleTimeSeries.showSpinner = false;
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window.clearInterval(prePopulateInterval);
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layerManger.synchronizeLayerList();
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// Increment the Blue Marble layer's time at a specified frequency.
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var currentIndex = 0;
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window.setInterval(function () {
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if (blueMarbleTimeSeries.enabled) {
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currentIndex = ++currentIndex % WorldWind.BMNGRestLayer.availableTimes.length;
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blueMarbleTimeSeries.time = WorldWind.BMNGRestLayer.availableTimes[currentIndex];
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wwd.redraw();
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}
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}, 200);
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}
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}, 200);
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}); |