Re: [Playerstage-users] Accuracy of bumpers in stage ?

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That really should not be happening - it's a bug. One clue to the  
problem may be that the occupancy quadtree looks to be slightly out of  
sync with the rendering of the robot's body polygon.

Does anyone have a little time to help Jean-Baptiste fix or work  
around this? It's the first week of our semester and I'm tied up for a  
while.

Richard/

On 11-Jan-08, at 9:22 AM, Jean-Baptiste Mouret / Mandor wrote:

> 			Hi again,
>
> From: Reed Hedges <re...@mo...>
>> Jean-Baptiste Mouret / Mandor wrote:
>>> 			Hi,
>>> I just compiled player2.1.0rc1 and stage2.1.0rc1. I'm trying to
>>> simulate a Roomba and to avoid obstacles using its two
>>> bumpers. However, I get situations where the robot is not moving  
>>> very
>>> close to an obstacle (I suppose that stage detects a collision) but
>>> where no bumper detects anything.
>>>
>>> Here is one of this situations :
>>> http://webia.lip6.fr/~mouret/bumper.png
>>
>> My guess is that the bumper needs to basically intersect with the  
>> obstacle.
>> Turn on "Matrix Occupancy" and/or "Matrix Tree" in the View->Debug  
>> menu to see
>> if the bumper and obstacle are in the same matrix cell or not. By  
>> default the
>> minimal matrix cell is quite small.
>
> Here is another weird situation : the bumper is clearly intersecting
> the obstacle and it's not activated.
>
> http://webia.lip6.fr/~mouret/bumper3.png
>
> Any idea of what's going on ?
>
> Bye,
> -- 
> Jean-Baptiste Mouret / Mandor
> http://animatlab.lip6.fr/~mouret
> tel : (+33) 6 28 35 10 49
>
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