Source: globe/UsgsNedElevationCoverage.js

/*
 * 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
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 *
 * 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.
 */
/**
 * @exports UsgsNedElevationCoverage
 */
define([
        '../geom/Location',
        '../geom/Sector',
        '../globe/TiledElevationCoverage',
        '../util/WmsUrlBuilder'
    ],
    function (Location,
              Sector,
              TiledElevationCoverage,
              WmsUrlBuilder) {
        "use strict";

        /**
         * Constructs an Earth elevation coverage using USGS NED data.
         * @alias UsgsNedElevationCoverage
         * @constructor
         * @augments TiledElevationCoverage
         * @classdesc Provides elevations for Earth. Elevations are drawn from the NASA WorldWind elevation service.
         */
        var UsgsNedElevationCoverage = function () {
            // CONUS Extent: (-124.848974, 24.396308) - (-66.885444, 49.384358)
            // TODO: Expand this extent to cover HI when the server NO_DATA value issue is resolved.
            TiledElevationCoverage.call(this, {
                coverageSector: new Sector(24.396308, 49.384358, -124.848974, -66.885444),
                resolution: 0.000092592592593,
                retrievalImageFormat: "application/bil16",
                minElevation: -11000,
                maxElevation: 8850,
                urlBuilder: new WmsUrlBuilder("https://worldwind26.arc.nasa.gov/elev", "USGS-NED", "", "1.3.0")
            });

            this.displayName = "USGS NED Earth Elevation Coverage";
        };

        UsgsNedElevationCoverage.prototype = Object.create(TiledElevationCoverage.prototype);

        return UsgsNedElevationCoverage;
    });