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2014-08-05 14:17:10 -0500 | answered a question | Cannot Visualize laser scan publisher tutorial Its because the range values increasingly get really large really quickly. I just set |
2014-08-05 12:55:46 -0500 | asked a question | Cannot Visualize laser scan publisher tutorial Hello All, I'm not able to visualize the scan topic in rviz when running this tutorial node. http://wiki.ros.org/laser_scan_publis... I have the fixed frame set to laser_frame and I can see the messages being received. Is there something I need change in order to see the range points in rviz? Thanks! |
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2014-08-01 14:49:06 -0500 | commented answer | LaserScan msg ranges.resize() - Arduino Thanks for the response Stefan! So if the vector is of type float*, should I be declaring and initializing my ranges variable like so: float *ranges = new float[num_readings]; and then assigning the ranges to the msg type like so: scan_msg.ranges = ranges; This seems to be restricting the ros serial python node from connecting.... so something is off. |
2014-07-31 21:31:41 -0500 | asked a question | LaserScan msg ranges.resize() - Arduino Hello All, I am getting the following error when compiling my rosserial_arduino code for sampling and sending a LaserScan msg. This code works just fine in a standard ros c++ node. Does this member not exist? Am I not accessing it correctly? Thanks! Compilation Error: error: request for member ‘resize’ in ‘scan_msg.sensor_msgs::LaserScan::ranges’, which is of non-class type ‘float’* Code in Question:
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2012-02-05 15:09:42 -0500 | commented answer | Is $ROS_PACKAGE_PATH after source install okay? I believe it is because of the flexibility that rosinstall provides. If a package can be installed via rosinstall, it's installation directory can be outside of the main ros dir and sometimes really should be since it's often used for building dev source. Then it's auto appended to the package path. |
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2012-02-05 14:21:21 -0500 | answered a question | Is $ROS_PACKAGE_PATH after source install okay? That is the expected outcome, but you installed in a directory owned by root. I would suggest installing in your user home directory. rosinstall auto generates this based on what it installed. If you are going to build packages yourself, be sure to append to the $ROS_PACKAGE_PATH by following the instructions here http://www.ros.org/wiki/ROS/Tutorials/InstallingandConfiguringROSEnvironment |
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2012-02-04 11:52:50 -0500 | answered a question | ros-electric-desktop-full not found You will have to build from source, see http://www.ros.org/wiki/electric/Installation/Ubuntu/Source |
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