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2013-09-26 00:22:54 -0500 | commented answer | Old data keeps being visualized in rviz @domhege so I always should send out the same number of markers I understand? |
2013-09-25 22:44:04 -0500 | commented answer | Old data keeps being visualized in rviz Thank you for your reply. I first had a lifetime of zero. So shouldn't they disappear then straight afterwards in the next iteration? I did change it to ros::Duration because the lifetime is defined as that in the marker tutorial. I will try the DELETE action in a moment then. |
2013-09-25 13:05:20 -0500 | asked a question | Old data keeps being visualized in rviz I have a callback
From the two above facts I observe I conclude that rviz for some reason stores my visualization data and keeps showing it? However since I never worked with Markers I wonder if I am not doing something wrong in my code. The relevant code piece is displayed below. |
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2013-09-20 02:29:50 -0500 | answered a question | Does ROS include the boost libraries? Okay most I found out that most linux systems include several pre-built boost libraries. I also found out that most of the boost libraries actually don't have to be built separately since they only exists out of header files. So what I did was just Downloaded the boost libraries from the website. Extracted the folder For more info: http://www.boost.org/doc/libs/1_54_0/more/getting_started/unix-variants.html |
2013-09-19 06:46:06 -0500 | commented question | Can't create a package I also have this problem now. Don't know why. I first could create packages but now I can't anymore. |
2013-09-18 11:51:39 -0500 | asked a question | Does ROS include the boost libraries? I want to use the boost uBLAS library which contains functions for matrices. Now my question is does ROS include the boost libraries? If yes why do I get the error displayed below? I checked out http://wiki.ros.org/rosbuild/CMakeLists/Examples#Using_Boost and believe I do everything correct. I am only including the header files at the moment. If no where do I have to extract the boost package (the .tar file) which one can download from the boost website, http://www.boost.org/doc/libs/1_54_0/more/getting_started/unix-variants.html? When I look to the last line of the error I see that I should have unpacked them in either Error
Source CMakelist.txt |
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2013-09-03 08:34:10 -0500 | asked a question | Installing ROS fuerte on Ubuntu 13.04 I am trying to install ROS fuerte on Ubuntu 13.04. I tried to install the packages but I get the following message: Do I understand from this that it is impossible to install fuerte on 13.04? I would agree if I would not be able to install it on a earlier ubuntu version but a higher version should not be a problem I presume? |
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2012-11-26 10:45:57 -0500 | marked best answer | Kinect microphone array (linux), HARK in combination with OpenNI. I am working on sound-source localization for our robot. For our robot vision we use OpenNI. In my search for software for reading the Kinect microphone array I did not found anything usefull at OpenNI. The old decrepated page says however that OpenNI supports the Kinect microphone array, http://www.ros.org/wiki/kinect. Offtopic question: Can one read the Kinect microphone array using OpenNI? If so how? And why is there no documentation for it (I looked really hard)? Now because I could not figure out if OpenNI supported the Kinect microphone array I looked for other solutions. I came in contact with HARK-kinect. Which is in fact a kind of API for ROS to communicate with HARK. HARK comes with a driver for the Kinect to read out the microphone array. Now I have already build some schematics in HARK and tested it with the Kinect. This morning when bicycling to the university, it came up with me that all the work I am doing now is totally pointless. HARK namely has a own driver for communicating with the Kinect, so does OpenNI (I presume). Main question: Does anybody know if both HARK and OpenNI can communicate with the Kinect at the same time? I could imaging namely that both drivers would conflict with each other? I hope someone can say something clever about this. |
2012-11-26 10:45:47 -0500 | commented answer | Kinect microphone array (linux), HARK in combination with OpenNI. Thank you very much for your indept information @Ben_S! |
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2012-11-26 09:39:41 -0500 | marked best answer | Rosrun, node is not removed from rosnode list after exit Hello, I am new to ROS and currently I'm following the tutorial of ROS. Everything went smooth till now. I am at tutorial: http://www.ros.org/wiki/ROS/Tutorials/UnderstandingNodes At about in the middle you have to execute the command In the tutorial there is a note below the laste command saying
Now I still see /turtlesim in the list, even after I try to kill it using Now can I just ignore this that /turtlesim was still in the list, even when it was closed? Because the ROS_HOSTNAME is definitly set correct. -edit- maybe this can give some light on the matter at hand? |
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