![]() You can also look beyond Earth to other planets in the solar system. The Lewis & Clark Trail feature worked, as did the Landmark toggle, the switch from orthographic to topographic renderings, and the Zoom function, so there is hope. No combination of settings could get the real-time weather maps to show up, nor did the Astrobiology Field Guide do anything at all, despite the cool name. More than half of those toolbar functions did not work, or were taking so long to render that we had to move on to other things-like sleep. Less cluttered than Google Earth, with a simple toolbar array of clickable icons that enlarge when you mouse over them, World Wind's promising interface belied too many problems. Unfortunately, it fell flatter than a collapsed playing-card house. See the NominatimGeocoder API doc to determine the details of the returned results and the accepted query string parameters.NASA being the big name that it is, we expected its 3D global-imaging program to be made of sterner stuff. An example of doing this is in LayerManager.js. These coordinates can be passed to a GoToAnimator to move the navigator smoothly to that geographic position. Two important properties of each result are its lat and lon properties, which identify the latitude and longitude of the place. More than one place may be identified each is represented by an element in the return array. ![]() The results are parsed JSON and contain a wealth of information about the places found that match the query string. The arguments to the callback function are, in order, a reference to geocoder and an array of query results. The callback function is called when the service replies. The query string is sent to the geocoder service. The arguments to this function are a query string and a callback function. The NominatimGeocoder has one function, lookup. An example of its usage is in LayerManager.js. Web WorldWind provides the NominatimGeocoder that uses Open Street Map’s Nominatim geocoder at MapQuest. Geocoders convert query strings identifying places to geographic locations and other useful information. You can change the time it takes to perform the animation via the travelTime property. Use a Position if you want the end position to have a different altitude than the start position. Use a Location if you want the start and end positions to have the same altitude. To use this class you pass its goTo function either a Location or a Position. You can see example usage in LayerManager.js. To change the navigator smoothly, use the GoToAnimator class. roll - The navigator’s angle around an imaginary line from the eye position to the look-at location.A value of 0 points the user straight down on the globe. tilt - The navigator’s tilt, in degrees. ![]() ![]()
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