Re: [Playerstage-users] Terrain based navigation

[ahoward <ah...@po...>]

Hi Jayesh:

An interesting question to which the short answer is "no", and the long
answer is "yes, this is something we have discussed".  Since there is a
crying need for a good open-source *outdoor* mulit-robot simulator, we
have had some discussions about how Stage could be extended to fill this
role.  Dont hold your breath, however, these are just half-arsed plans at
the moment.

In the shorter term, I think that it would be possible to add some
*simple* terrain models to Stage.  Everthing would still be done in 2D,
but you could use the terrain model to modify the mobilty of robots and/or
their sensory characteristics.  If you want to have a go at this yourself,
I can give you some tips on getting started.  My first tip, however, is to
wait a couple of days until we release the 1.2 version of Stage.  We're
just hacking on the manual at the moment, and should be releasing on
Monday evening.  Busy, busy, busy...

	A.


On Sun, 9 Jun 2002, jayesh wrote:

> Hi,
>      Is it possible to write terrain based navigation rules in Player Stage?
> As far as the documentation goes, it seems we can only create a floor (black),
> and walls (white). Is it possible to give certain characteristics to certain
> x-y region (like the surface over there being smooth, rough or rocky?). I have
> some idea like filling the whole world with coloured objects of a type (pucks
> or something) that are not obstacles (obstacle: false), and their colour
> represents certain terrain characteristics, like green means flat, red means
> rocky and other colours. I have not tried it out at all yet, but any other
> suggestions or has someone already done something for terrain navigation in
> player stage?
>
> Thanks.
> Jayesh
>
>
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Andrew Howard                           email: ah...@po...
Department of Computer Science          http:  www-robotics.usc.edu/~ahoward
University of Southern California       phone: 1 (213) 740 6416
Los Angeles, CA, U.S.A. 90089-0781      fax:   1 (213) 740 7512
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