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2014-01-28 17:23:41 -0500 | marked best answer | fromROSMsg saves an unstructured pointcloud? When retrieving pointclouds from kinect openni (topic: /camera/rgb/points) and calling the pointcloud goes from structured tu unstructured. outputs and so on. Any hint why this happens and how to keep the pointcloud dense and structured? |
2014-01-28 17:23:12 -0500 | marked best answer | Can several publishers publish on a single topic ... or that doesn't make any sense? |
2014-01-28 17:22:58 -0500 | marked best answer | Publishing an image from disk Hi! What's te best way to solely stream an image from disk? How do I convert from cv::Mat to proper ROS image message? The relevant snippet would be: How can the cv_bridge::CvImagePtr be initialized? The command above aborts at runtime as one would expect if the constructor requires something else. The error: Having a look at toCvCopyImpl seems a bit of an overkill ( http://www.ros.org/doc/api/cv_bridge/html/c++/cv__bridge_8cpp_source.html#l00200 ). So, any suggestions? |
2014-01-28 17:22:20 -0500 | marked best answer | ros service callback blocks the other node callbacks? Hi all! Does a slow service callback prevent the other callbacks from running? Is there a multi-thread solution behind the scenes, or a FIFO queue? In the situation that there's a service with a publisher/subscriber structure for what should be a service, is there a neat wait to sincronize the request with the published answer? It looks like waiting on a mutex or flag prevents the subscription callback from running. Cheers! |
2014-01-28 17:22:12 -0500 | marked best answer | retrieve rgb from kinect pointcloud Hello! The pointcloud published at camera/rgb/points is sensed to have the rgb at the fourth float However, when storing the float with and printing out the float shows how all of them are set to zero. How can we retrieve the associated rgb values for each 3d point of the pointcloud output by the kinect? |
2014-01-09 04:24:31 -0500 | marked best answer | Is it possible to save the rxloggerlevel level's? I have a launch file launching several nodes and I'm interested on saving a certain configuration of warn/debug/info depending on the node. Is it possible to save a specific configuration or a way of launching it setting the levels accordingly other than changing them manually at every execution? |
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2013-04-12 19:57:08 -0500 | marked best answer | from PoseStamped message to tf StampedTransform What's the neatest way to change a PoseStamped message into a StampedTransform to be published through a transform_broadcaster? |