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  3D Globe using JAVA  (Read 2698 times)
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Offline krypto

Junior Devvie

while(true) { self.caffeinate (); }

« Posted 2006-04-13 12:09:26 »

I want to implement a rudimentary Google Earth type app using JOGL. Where can I find info on how to model hte earth, I need to map textures to the globe, ect.
Any Ideas I where Ishould start looking?


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Offline turquoise3232

Junior Devvie

Java (games) rock!

« Reply #1 - Posted 2006-04-13 15:38:18 »


You draw a sphere, with quad or triangle strips and set texture coordiantes to match lat/long world coordinates.
To find an image to map on your sphere look at the Nasa blue marble page...
... it's only the starting point of a long way!
Offline rune.aasgaard

Senior Newbie

Java games rock!

« Reply #2 - Posted 2006-04-16 05:36:16 »

If you want to use more high resolution data over larger areas you'll have to learn quite a lot about "view dependent continuous level of detail surfaces", streaming of terrain data and out of core visualization.

For an example of how this may be have a look at: You'll find a few useful references in the documentation section For another useful approach have a look at the "grand canyon demo" on the jogl pages.

I have also enyoyed the references found in the Vterrain pages:

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Offline Mithrandir

Senior Devvie

Cut from being on the bleeding edge too long

« Reply #3 - Posted 2006-04-17 16:56:22 »

If you are interested in building an application over the top of such an infrastructure, you may want to check out the forthcoming X3DEarth project. This is a large project that is being driven by the Web3D Consortium to develop an open-standards based replacement for Google Earth. The initial technology release is targetted for this week at the Web3D Symposium and details should be up on by the end of the week.

The site for 3D Graphics information
Aviatrix3D JOGL Scenegraph
Programming is essentially a markup language surrounding mathematical formulae and thus, should not be patentable.
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