How to create image layers for world wind java
NASA world wind Java SDK 0.6 has some outstanding features such as distance and area measure tools, view visual control layer that give a GUI to tilt, pan, and look around. World wind java SDK has released in 2007 and various applications are emerged and gathered on the WWJ demo page. These applications are used to discover the ocean depth, track satellites, visualize information clusters, and control camera flying in the sky. The university of Muenster institute for Geoinformatics used WWJ for the project of a multi-touch wall.
Now we will have a look at world wind java SDK 0.5. Many new things are added in this new version like the view handling permits you to navigate over elevated terrains and underwater in a precise way. With this new version, you can also obtain very near to the ground. An open source and a fee WMS server are added in the SDK 0.5. Cubed LandSat and blue marble next generation are served through this new WMS infrastructure.
GeoNames layer of world wind java can display city names for the latest view. If you want to make use of this layer then you should download GeoNamesLayer.java and then remove the *.txt extension and then add it in SDK layers Earth package. This layer can show you city names below 1500km but without storing anything. It only sends requests for the service and then displays the existing results. This layer does not let you to know whether a location is a big or tiny village. However, it is useful to obtain world city names, which are now displayed, in WWJ. This layer also provides several types of geographic features. WWJ forum member toolshed posted postcode for loading .obj and 3D models in SDK.
There are some experimental classes to create procedural image layers. The test layer creates elevation colored tiles. First, you need to download ProceduralTiledImageLayer.java and proceduralTestLayer.java. After this, you need to remove .txt extension and then add the layer into your SKK layers package. In order to make use of this layer, you must add an instance for your layer list and then set its wwd reference. Otherwise, it will not produce the tiles. There are several things, which you must remember like when a tile is created, it cannot be cached and recomputed. There are many other potential applications for procedural tiles. With the help of elevation data, you are able to create various kinds of ‘elevation colored’ maps, cast shadows, drawing ‘line of sight areas and compute shading.
Procedural shading layer is made for world wind java, which computes light from a fixed southeast light source. Java splash screen is also added in world wind java. In order to add java splash screen, first you need to download splash.Screen.java then remove the .txt extension and add it into SDK examples package. In order to make use of it, you should create no argument new instance of Splash Screen at the beginning of your application and then dispose of it when the main frame is placed noticeable.
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