Re: [Repast-developer] 3d models in Repast

[Phil F. <pfe...@co...>]

For my stuff, I worked entirely in VectorSpace. Basically, I create a 
pile of objects and build a java3d scene graph out of them. Then it's a 
matter of moving things about. For a DescreteSpace (cell-based) system, 
it might make sense to look at volume rendering, since each texel could 
cerrespond to a cell. The problem is that I'm not sure if it's yet 
possible to update a 3D texture in real time on anything other than an 
SGI. There-s a lot of memory to move. Isosurfaces could also work, but 
you'd have to avoid the scene graph. SGI and SUN are coming out with 
"OEM" java bindings to openGL, so that might be the way to go.

Phil Feldman

> I suspect it would be fun for us to explore the future of 
> Object3DSpaces for our new topology.space library we've been building 
> too. with the establishment of a Spaces methods only 
> accepting/returning "Locations" instead of x/y coordinates, this would 
> free us up to make > 2 dimensional spaces without being restricted by 
> the interfaces.
>
>
> interface DiscreteSpace {
>
>   public Location removeLocation(Location loc);
>
>   public Location getLocation(Location loc);
>
>   public void removeObjectAt(Object obj, Location loc);
>
>   public void putObjectAt(Object obj, Location loc);
>
>   public void getObjectAt(Location loc);
>
> }
>
> class Discrete2DSpace implements DiscreteSpace {
>
>   ...
>
> }
>
> class Discrete3DSpace implements DiscreteSpace {
>
>   ...
>
> }
>
> class Object2DLocation implements Location{
>
>   public int getX(){
>    ...
>   }
>
>   public int getY(){
>    ...
>   }
>
> }
>
>
> class Object3DLocation extends Object2DLocation{
>
>   public int getZ(){
>    ...
>   }
>
> }
>
> I imagine it would be interesting to have Different "Display Surfaces" 
> for the space, imagine "top", "side", "front", "isometric" and "3D 
> adjustable" Displays, the 2D (top, side, front) Could easily be 
> superimposed on a 2D DisplaySurface while a 3D display surface would 
> need to be created for isometric and adjustable 3D Displays.
>
> -Mark
>
>
> Phil Feldman wrote:
>
>> I've been doing a lot of work in that area for the past year or so. 
>> It's not quite ready for prime time, but I may be able to help you 
>> out a bit.
>>
>> Phil Feldman
>>
>>> Has anyone done any work on 3d-space models (like Heatbugs in 
>>> 3d-space) in Repast or anyone planning on it ?  Like with Java3D ?
>>
>>
>>
>>
>>
>>
>>
>>
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