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HeatMap.js
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HeatMap.js
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/*
* Copyright 2003-2006, 2009, 2017, 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.
*/
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");
// Create and add layers to the WorldWindow.
var layers = [
// Imagery layers.
{layer: new WorldWind.BMNGLayer(), enabled: true},
{layer: new WorldWind.BMNGLandsatLayer(), enabled: false},
{layer: new WorldWind.BingAerialWithLabelsLayer(null), 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);
}
// Generate 10000 random points to display on the HeatMap with varying intensity over the area of the whole world.
var locations = [];
for (var i = 0; i < 10000; i++) {
locations.push(
new WorldWind.MeasuredLocation(
-89 + (179 * Math.random()),
-179 + (359 * Math.random()),
Math.ceil(100 * Math.random())
)
);
}
// Add new HeatMap Layer with the points as the data source.
wwd.addLayer(new WorldWind.HeatMapLayer("HeatMap", locations));
// Create a layer manager for controlling layer visibility.
var layerManager = new LayerManager(wwd);
});