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2014-01-28 17:23:40 -0500 | marked best answer | how can rosbag write so fast on disk? Hi there! I made some test and I discovered that rosbag is able to record information at an impressive speed (I sent through the network several images (500x250 mono8) at ~29 MBps) and rosbag didn't miss anything. What are the techniques used by rosbag to make this possible? Thanks. |
2014-01-28 17:23:10 -0500 | marked best answer | What's the meaning of global in getGlobalCallbackQueue()? Hi there! Does the getGlobalCallbackQueue function return a pointer to a queue shared by all the nodes? or does it return a pointer to a queue intended global within the node? Thanks a lot. |
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2013-03-07 21:17:31 -0500 | asked a question | Notify changes to dynamic_reconfigure Hi all! is there a way to programmatically update parameters in the dynamic_reconfigure? I can modify the parameters of a node from the dynamic reconfigure but those parameters can possibly get modified also from other nodes at runtime, so I would like that these changes get reflected in the dynamic_reconfigure. Thanks a lot. |
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2012-05-17 23:25:24 -0500 | asked a question | ld: undefined reference to avformat_network_init@LIBAVFORMAT_53 Hi there! I wrote a node that converts webcam images to ROS messages, I am using opencv but the linker yells: How do I overcome this problem? Thanks |
2012-05-08 23:27:52 -0500 | asked a question | unable to install ros on ubuntu 12.04 Hi there! I recently upgraded to ubuntu 12.04 but I am not able to install ros-fuerte. "apt-get install" yields: Reading package lists... Done
Building dependency tree The following packages have unmet dependencies: ros-fuerte-desktop-full : Depends: ros-fuerte-slam-gmapping (= 1.2.7-s1336014066~oneiric) but it is not going to be installed Depends: ros-fuerte-simulator-gazebo (= 1.6.7-s1336006714~oneiric) but it is not going to be installed Depends: ros-fuerte-visualization (= 1.8.11-s1335981752~oneiric) but it is not going to be installed Depends: ros-fuerte-vision-opencv (= 1.8.2-s1335952329~oneiric) but it is not going to be installed Depends: ros-fuerte-perception-pcl (= 1.2.2-s1335953254~oneiric) but it is not going to be installed Depends: ros-fuerte-image-pipeline (= 1.8.2-s1335953718~oneiric) but it is not going to be installed Depends: ros-fuerte-stage (= 1.6.6-s1336041641~oneiric) but it is not going to be installed Depends: ros-fuerte-image-transport-plugins (= 1.8.0-s1335952476~oneiric) but it is not going to be installed Depends: ros-fuerte-visualization-tutorials (= 0.6.3-s1336026792~oneiric) but it is not going to be installed Depends: ros-fuerte-laser-pipeline (= 1.4.4-s1335976222~oneiric) but it is not going to be installed Depends: ros-fuerte-navigation (= 1.8.1-s1335992190~oneiric) but it is not going to be installed E: Unable to correct problems, you have held broken packages. How can I overcome this problem? Thanks! |
2012-03-15 09:58:58 -0500 | commented answer | roswtf ERROR Communication with [/foo] raised an error Thanks for the link, even though it didn't help. |
2012-03-15 09:54:40 -0500 | commented question | roswtf ERROR Communication with [/foo] raised an error I defined all messages in one package and then imported this package where needed. Can this explain the weird behavior? |
2012-03-05 05:48:27 -0500 | commented answer | roswtf ERROR Communication with [/foo] raised an error everything runs on the same machine. The problem is still there. rxgraph build the graph correctly and I am able to rosping each node. I don't get any error when I start roscore and messages are successfully sent and received. |