11/10/2023 0 Comments How to download nasa world wind 2.0on a separate thread, they could occur while the model is being drawn and the drawing thread could encounter inconsistent or incoherent state. If changes are made to shapes, layers, views, etc. Be sure to make changes to WorldWind on the event dispatch thread (EDT).WorldWind does redraw in response to its input handler or when data requested from a server arrives. Apps usually make several changes in reaction to user requests, Redrawing at every one of those intermediate changes would show intermediate states and decrease performance. WorldWind does not automatically update the screen when the app makes changes. Be sure to call WorldWindow.redraw() when you’ve finished making changes to shapes, layers, the view, or anything else.Problem: The change I made didn’t show up on the screen Installing updated drivers almost always fixes the problem. If you still need help or have questions, please search/post on the forum or GitHub. The problem arises in the URLConnection class not following the protocol redirection provided by the server. Specifying an HTTPS endpoint on an older WorldWind Java version will work. All versions of WorldWind Java support HTTPS, as WorldWind is using the Java URLConnection class. The configuration files have been maintained with a deprecated comment in order to maintain your on disk cache of the data. Please note some WMS layer sources have been deprecated in v2.1.0. In addition to HTTPS endpoints specified by default, there are a number of improvements and bug fixes. To summarize, the best option, if available, is to update to v2.1.0. This class is a copy of the NASAWFSPlaceNamesLayer class but updates the hard coded service link to HTTPS. The patch jar includes a new PlaceNames layer: NASAWFSPlaceNamesLayerHttps.java. $ java .config.document=worldwind-2.0.0-https-patch/worldwind-https-patch.xml Place the jar in the classpath of your project and add the following argument to your application launch script. WorldWind Java v2.1.0 uses HTTPS map layers exclusively. SDK v2.1.0 and v2.0.0 are interface compatible.ĭownload the WorldWind Java v2.0.0 HTTPS Patch jar from GitHub. Option 1: Upgrade to WorldWind Java v2.1.0 (Preferred) SEVERE: Retrieval returned no content for You may see the following errors: FINE: Response code 301, Content length 534, Content type text/html charset=iso-8859-1, retrieving Clients map layer configuration files must be updated to use HTTPS endpoints. The Java URLConnection class does not follow the redirect protocol. HTTP requests return a redirect to the HTTPS endpoint. Problem: NASA Map Layers do not download (HTTP 301)Īs of January 2017 WorldWind map servers (worldwind*., .gov, and .gov) exclusively use HTTPS. Those problems and their fix are listed here. Many problems encountered by WorldWind developers and their application users have common causes.
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