He had "obstacle_return" set to 0 in his world file, so his robot was not included in the collision detection. Changing it to 1 did the trick.

How was the problem solved? Please report in case others have the same problem!

thanks,
- rtv

On Thu, May 30, 2013 at 11:50 AM, Iņigo Odriozola <odri.1988@gmail.com> wrote:
> Problem solved. Thank you so much!
>
>
> 2013/5/30 Aslund <sebastian.aslund@gmail.com>
>>
>> Only thing that comes to mind is if the collision detection does not work.
>> Could you mail me your world file?
>>
>> On 30 May 2013 17:26, "Iņigo Odriozola" <odri.1988@gmail.com> wrote:
>>>
>>> Thank you for your tip Sebastian, but my wall has height. It has got
>>> concretely a height of 2.000 in the .world file. What can the reason be
>>> then? Why does the robot cross the walls?
>>>
>>> The key you mention doesn't come to my mind right now, but pressing
>>> "ctrl" and moving the mouse does the trick.
>>>
>>>
>>>
>>>
>>> 2013/5/30 Aslund <sebastian.aslund@gmail.com>
>>>>
>>>> You properly need to define wall height. Stage uses a 2.5D model to
>>>> express how the environment looks. If wall height is zero then the robot
>>>> will go through them.
>>>> You can check by looking at the environment from an angle, there is a
>>>> button that does that but cannot remember its name.
>>>>
>>>> On 30 May 2013 16:42, "Iņigo Odriozola" <odri.1988@gmail.com> wrote:
>>>>>
>>>>> Hey everyone!
>>>>>
>>>>> I am carrying out some tests in which I load a png file. The problem is
>>>>> that apparently the robot does not recognize the walls of the map and goes
>>>>> over them, that is, it crosses them. Why is the robot behaving so?
>>>>>
>>>>> Many thanks in advance,
>>>>>
>>>>> Iņigo
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
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>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET
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>>>> _______________________________________________
>>>> Playerstage-users mailing list
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>>>
>>>
>>>
>>> ------------------------------------------------------------------------------
>>> Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET
>>> Get 100% visibility into your production application - at no cost.
>>> Code-level diagnostics for performance bottlenecks with <2% overhead
>>> Download for free and get started troubleshooting in minutes.
>>> http://p.sf.net/sfu/appdyn_d2d_ap1
>>> _______________________________________________
>>> Playerstage-users mailing list
>>> Playerstage-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/playerstage-users
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>>
>>
>> ------------------------------------------------------------------------------
>> Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET
>> Get 100% visibility into your production application - at no cost.
>> Code-level diagnostics for performance bottlenecks with <2% overhead
>> Download for free and get started troubleshooting in minutes.
>> http://p.sf.net/sfu/appdyn_d2d_ap1
>> _______________________________________________
>> Playerstage-users mailing list
>> Playerstage-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/playerstage-users
>>
>
>
> ------------------------------------------------------------------------------
> Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET
> Get 100% visibility into your production application - at no cost.
> Code-level diagnostics for performance bottlenecks with <2% overhead
> Download for free and get started troubleshooting in minutes.
> http://p.sf.net/sfu/appdyn_d2d_ap1
> _______________________________________________
> Playerstage-users mailing list
> Playerstage-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/playerstage-users
>

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Get 100% visibility into your production application - at no cost.
Code-level diagnostics for performance bottlenecks with <2% overhead
Download for free and get started troubleshooting in minutes.
http://p.sf.net/sfu/appdyn_d2d_ap1
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