NASA World Wind - 3D virtual globe
NASA World Wind program is rich 3-Dimendional virtual globe that we can utilize on desktop computers that are running on windows. This program unites NASA images created from satellites, which produced SRTM, MODIS, Marble and LandSat 7.
This virtual globe works in similar way as other like Google Earth program. It got support from NASA and developed by open source community as well as NASA. User will really enjoy this program because it provides user recent images of our beautiful earth.
Now we will discuss some key features of this program. It consists of collection of NASA satellites, which is the great provider of images. Out of all the provided images people can select the one they like. It also provides you information about global clouds and position. Scripting of this program is also available, through which we are able to automate the program.
The feature such as Landmarks catalog and Astrobiology field guide make this program information provider and best program. Internet is the biggest source of image data provider for this program because of which user requires a broadband connection. The imagers of world wind program is not actual time, it is very old. One of the major problems in this program is that this program is very slow to handle and utilizes much memory as it utilizes DirectX and is made in Microsoft Net 2.0.
This program does not provide the information about railways and roads as Google earth provides. There are many advantages of this wonderful program as if it includes wide variety of image information. We can even download all the image information separately. We can also choose satellites for images. Jupiter, Mars and Venus are also available in this program.
NASA World Wind program permits any person to zoom from satellite height into any wonderful place of our planet earth. User can even experience Earth terrain with influencing LandSat satellite images as well as Shuttle Radar Topography Mission information. User is able to visit any place of our earth virtually. With the help of this program, user can look across the Andes, along the African Sahara, into the Grand Canyon.
World wind java is open source SDK produced by NASA produces new possibility for GIS community. World Wing program is a 3-Dimensional interactive world viewer. It is written in two languages like OpenGL and Java. This article will explain you how GIS developers who wish to develop Eclipse-based applications are able to set in the WWJ SDK as Eclipse plug-in.
The WWJ SDK works as a 3-Dimensional graphics globe constructed on the top side of Java OpenGL additions. NASA world wind program like google earth utilizes flat files as well as SQL databases. In order to get response from client side it makes use of flat files. From server side, it makes use of SQL databases, which store imagery as well as vector files. In client’s side of program, world wind there is restricted utilization of traditional SQL-based databases. In server side, program world wind allowed users to be relied on SQL-based databases for storing imagery.
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