In js/main.js set the window.DEBUG flag to true to put the app in debug mode.Note that the sun icon turns dark during nighttime hours. When the sun icon and aspect icon are coincident then the maximum solar radiation is received by the terrain at that point. To see it in action, either move the time slider, or zoom out on the globe and move the crosshairs in an easterly or westerly direction. Its position is relative to compass points. The sun icon that orbits the compass indicates the solar azimuth angle.To see it in action, zoom in on the globe to see a ridgeline and then move the crosshairs back and forth across the ridge. Its position is relative to the compass points. The red diamond icon that orbits the compass indicates the aspect of the terrain under the crosshairs.To see it in action, zoom in on the globe to see some elevation and then move the crosshairs across the terrain. The sky/ground background is an inclinometer that rotates to display the slope of the terrain under the crosshairs.The compass needle and compass rose rotate with your view of the globe and always point to true North.The latitude, longitude and ground elevation are displayed for the point under the crosshairs.To see them in action, zoom out on the globe and then pan north and south to the poles, or rapidly advance the time slider. They are relative to the application date/time and the geographic position. The sunrise and sunset markers depict the solar hour angles for for sunrise and sunset and indicate the amount of sunlight received.When the sun icon is at the top of the dial, then the real sun is at its zenith. Solar noon is at the top of the dial, and midnight is at the bottom. The sun icon that orbits the dial indicates the local solar hour angle.These values are controlled by the time slider. The application's date and time, are displayed in the body of the widget.Holding a key down will repeat at a progressively faster rate.Zooming: use the + and - minus keys to zoom.Panning: use the up, down, left, right arrow key.You must set the focus on the globe (click on the globe) for keyboard controls to work.A set of view controls overlaid on the globe allow zoom, rotate, tilt, and vertical exaggeration.Rotate the globe by dragging the right mouse button or your two fingers left/right.Tilt the globe by dragging the right mouse button or your two fingers upward/downward.Pan the globe by dragging the mouse or your finger.Zoom with your mouse wheel (pinch gesture for mobile devices).Usage Instructions Globe Navigation Mouse/Touch Controls Be an example of a NASA WebWorldWind SDK base project that is easy to fork and customize.Be a useful web application in its own right.A time slider and controls to advance and retard the time used for day/night dispaly and weather forecasts.Collapsible layer manager and output/info panels. Location widget that shows the coordinates and elevation at the crosshairs, plus the slope and aspect of the terrain and the solar azimuth angle.Time widget that shows current time at the crosshairs plus sunrise, sunset and solar hour.Weather Scouts that can be placed on the globe to obtain point weather forecasts from the National Weather Service (US-only).Markers that can be dragged and dropped on the globe.Keyboard controls to pan, zoom and reset the globe.Shareable bookmark URLs that can be pasted into emails or saved in your browser.A day/night and atmosphere layer for realistic visual effects.Layers can be sorted and opacity can be adjusted.Ability to add external WMS map servers for additional imagery.It uses the NASA WebWorldWind SDK to display a 3D globe with terrain and imagery The WorldWind Explorer is a geospatial web application for visualizing the earth. An HTML5/JavaScript geo-browser built from the ESA-NASA WebWorldWind SDK using the KnockoutJS and Bootstrap libraries.
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