There are links to sites that have developed Java3D apps for reading ,
displaying, and interacting with DEM data
on the Visad webpage http://www.ssec.wisc.edu/~billh/visad.html.
At 05:57 PM 1/10/00 +0100, Desiree Hilbring wrote:
>Hello Everybody,
>
>I need to implement a 3D-Geoinformationsystem-Service in a 2D-GIS.
>I have already written a Mapper for Shape3DObjects in my thesis.
>The problem now is, that the performance is really slow. Okay I know, by
>now I didn't took much care of performance-like programming.
>
>So I have got several questions:
>
>- What kind of complex applications did you test with Java3D? What are
> your expierences with it?
>
>- In general, what is Java3D capable of?
> How much speed do I loose with Java3D in complex
> Java3D-applications versus OpenGL-Programs?
>
> I need to implement scences with digital elevation models
> with several 100 to 1000 polygons
> and I want to navigate in these scenes and interact with these
> scenes, can Java3D handle this for professional users?
>
> Can I reach for example similar performace like the Arcview 3D
> Analyst?
>
>
>- Which kind of Graphic card is good for using Java3D with WindowsNT?
>
>- How can I make sure that my Graphic Card in the moment is using its
> hardware accelaerator (it's a Permedia 2) ?
>
> Has anybody experience?
>
> Is it possible to get windowed hardware acceleration for my
> application, and what do I have to do to achieve that? Do I have
> to reset the resolution of the monitor or do I have to reset the
> size of the Canvas3D Frame?
>
>- My impression is that my prototyp-application is using much space of my
> memory, is this more likely a problem from Java3D or from my
> programming
> style?
>
>- When I change my way of programming in point to performance do you think
> Java3D is capable of handling a real complex application with
> 100- 1000
> points - objects with a reasoable performance?
>
>Please, answer some of my questions I really need your expierence with
>Java3D? This will be very helpful for me!
>
>Thanks for any help in advance
>
>Yours Desiree
>
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Jack S. Gundrum
Visualization Group
Center for Academic Computing
Penn State University
Email:[EMAIL PROTECTED]
Phone:(814)865-1863
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