mirror of
https://github.com/NASAWorldWind/WebWorldWind.git
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97 lines
4.0 KiB
JavaScript
97 lines
4.0 KiB
JavaScript
/*
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* Copyright 2003-2006, 2009, 2017, 2020 United States Government, as represented
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* by the Administrator of the National Aeronautics and Space Administration.
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* All rights reserved.
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*
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* The NASAWorldWind/WebWorldWind platform is licensed under the Apache License,
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* Version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License
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* at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*
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* NASAWorldWind/WebWorldWind also contains the following 3rd party Open Source
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* software:
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*
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* ES6-Promise – under MIT License
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* libtess.js – SGI Free Software License B
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* Proj4 – under MIT License
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* JSZip – under MIT License
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*
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* A complete listing of 3rd Party software notices and licenses included in
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* WebWorldWind can be found in the WebWorldWind 3rd-party notices and licenses
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* PDF found in code directory.
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*/
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/**
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* Illustrates how to load and display a GeoTiff file.
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*/
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requirejs(['./WorldWindShim',
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'./LayerManager'],
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function (WorldWind,
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LayerManager) {
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"use strict";
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// Tell WorldWind to log only warnings and errors.
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WorldWind.Logger.setLoggingLevel(WorldWind.Logger.LEVEL_WARNING);
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// Create the WorldWindow.
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var wwd = new WorldWind.WorldWindow("canvasOne");
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// Create and add imagery layers to the WorldWindow.
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var layers = [
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//Imagery layers.
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{layer: new WorldWind.BMNGLayer(), enabled: false},
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{layer: new WorldWind.BingAerialWithLabelsLayer(null), enabled: true},
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// Add atmosphere layer on top of all base layers.
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{layer: new WorldWind.AtmosphereLayer(), enabled: true},
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// WorldWindow UI layers.
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{layer: new WorldWind.CompassLayer(), enabled: true},
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{layer: new WorldWind.CoordinatesDisplayLayer(wwd), enabled: true},
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{layer: new WorldWind.ViewControlsLayer(wwd), enabled: true}
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];
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for (var l = 0; l < layers.length; l++) {
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layers[l].layer.enabled = layers[l].enabled;
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wwd.addLayer(layers[l].layer);
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}
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// Create GeoTiff layer and add it to the WorldWindow's layer list. Disabled until its image is loaded.
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var geoTiffLayer = new WorldWind.RenderableLayer("GeoTiff");
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geoTiffLayer.enabled = false;
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geoTiffLayer.showSpinner = true;
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wwd.addLayer(geoTiffLayer);
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var resourceUrl = "https://worldwind.arc.nasa.gov/web/examples/data/black_sea_rgb.tif";
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// Load the GeoTiff using the Reader's built-in XHR retrieval function.
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WorldWind.GeoTiffReader.retrieveFromUrl(resourceUrl, function (geoTiffReader, xhrStatus) {
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if (!geoTiffReader) {
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// Error, provide the status text to the console.
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console.log(xhrStatus);
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return;
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}
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// Display the obtained GeoTiff imagery with a WorldWind SurfaceImage renderable.
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var surfaceGeoTiff = new WorldWind.SurfaceImage(
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geoTiffReader.metadata.bbox,
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new WorldWind.ImageSource(geoTiffReader.getImage())
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);
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// Add the SurfaceImage to the GeoTiff layer and update the layer manager.
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geoTiffLayer.addRenderable(surfaceGeoTiff);
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geoTiffLayer.enabled = true;
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geoTiffLayer.showSpinner = false;
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layerManager.synchronizeLayerList();
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// Redraw the WorldWindow and point the camera towards the imagery location.
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wwd.redraw();
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wwd.goTo(new WorldWind.Position(43.80, 28.57, 30000));
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});
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// Create a layer manager for controlling layer visibility.
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var layerManager = new LayerManager(wwd);
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}); |