Re: [OpenRAVE-users] Acessing camera sensor data through C++ API

[Juan G V. <jcg...@gm...>]

Hello Rosen,
Thanks for that tip; I've updated the code with SendCommand:
https://roboticslab.svn.sourceforge.net/svnroot/roboticslab/examples/openrave/orcamerasensor/orcamerasensor.cpp

Unfortunately, the behavior remains the same. I doubt it is related to
"power 1", as a hacked version of testwamcamera.env.xml with
<power>1</power> outputs the same vector full of zeroes.

Do you have any ideas to solve this issue...??

2011/1/28 Rosen Diankov <ros...@gm...>:
> Hi Juan,
>
> Thanks for emailing about this. You'll notice that the
> testcamerasensor.py script calls
>
> SendCommand('power 1')
>
> on each of the sensors. The convention is that the base* sensors are
> by default off.
>
> In C++, this would look like:
>
> stringstream sin, sout;
> sin << "power 1";
> mysensor->SendCommand(sout,sin);
>
> rosen,
>
> 2011/1/28 Juan G Victores <jcg...@gm...>:
>> Hello,
>> I'm trying to develop a small cpp example for extracting images from a
>> camera through the C++ API, inspired from testcamerasensor.py.
>> My custom debugging output seems nice:
>> Robot 0: BarrettWAM
>> Good sensorbase...
>> :Interface Author: Rosen Diankov
>> Provides a simulated camera using the standard pinhole projection.
>> BarrettWAM_camera
>> Camera width: 640, height: 480.
>> Power camera on succes.
>> Vector size: 921600 ( 640 * 480 * 3 = 921600 )
>>
>> However, the actual contents of the std::vector<uint8_t> vimagedata is
>> completely full of zeros.
>> I would be very grateful for any guideline on how to try to fix this problem.
>>
>> You can download the mini-project to replicate the experiment at:
>> svn co  https://roboticslab.svn.sourceforge.net/svnroot/roboticslab/examples/openrave/orcamerasensor
>>
>>
>> --
>>
>> ________________________________________________________
>> http://roboticslab.uc3m.es/roboticslab/persona_publ.php?id_pers=72
>> PhD Candidate - RoboticsLab Researcher
>> Dpto. de Ingeniería de Sistemas y Automática
>> Universidad Carlos III de Madrid
>>
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>



-- 

________________________________________________________
http://roboticslab.uc3m.es/roboticslab/persona_publ.php?id_pers=72
PhD Candidate - RoboticsLab Researcher
Dpto. de Ingeniería de Sistemas y Automática
Universidad Carlos III de Madrid