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2021-08-08 20:57:15 -0500 | edited answer | PCD to Octree I wrote this simple piece of code #include <pcl/io/pcd_io.h> #include <pcl/point_types.h> #include <o |
2021-08-08 20:56:08 -0500 | answered a question | PCD to Octree #include <pcl/io/pcd_io.h> #include <pcl/point_types.h> #include <octomap/OcTree.h> octomap::OcTree p |
2021-08-05 16:29:22 -0500 | edited answer | rosservice call /mavros/set_mode "base_mode: 0 custom_mode: 'OFFBOARD' The syntax to make that service call has a return key between the base_mode and custom_mode like below rosservice call |
2021-08-05 16:18:48 -0500 | answered a question | rosservice call /mavros/set_mode "base_mode: 0 custom_mode: 'OFFBOARD' The syntax to make that service call has a return key between the base_mode and custom_mode like below rosservice call |
2021-03-22 20:21:19 -0500 | edited answer | Why am I getting: can't locate node [rosout] in package [rosout] I was accidentally in a conda environment (base only) and it was messing up big-time. Try disabling any Python virtual e |
2021-03-22 20:20:45 -0500 | answered a question | Why am I getting: can't locate node [rosout] in package [rosout] I was accidentally in a conda environment (base only) and it was messing up big-time. |
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2018-02-26 04:59:59 -0500 | marked best answer | Unable to install pointcloud_to_laserscan ROS Indigo I am trying to install pointcloud_to_laserscan package in ROS Indigo running in Ubuntu 14.04. When I add the source from git repo and catkin_make I get the following error. Please help |
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2016-05-08 16:07:23 -0500 | marked best answer | printing kinect point cloud data alone gives garbage I have subscribed to /camera/depth/points to get the PointCloud2 data from kinect. When I try to print the PointCloud2 data alone leaving out the headers, height and width etc i get a pool of garbage values. How do i print the 'data' field alone.? I am able to get the output without any garbage if i print the entire msg. Here is my code. Thanks in advance. |
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2015-10-07 08:54:21 -0500 | marked best answer | Kinect in gazebo for ROS Hey I am new to Gazebo. My project requires kinect mounted over Pioneer 3DX to track humans in environment as one of its part.. I wanted to know hot to add kinect sensor to my Pioneer 3DX model in Gazebo and receive data in a similar fashion as done by Kinect nodes for ROS. Thanks in advance.. |
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2015-06-03 01:41:39 -0500 | marked best answer | RosAria ArRobot::myPacketReader: Timed out i am working with Pioneer 3DX and using RosAria library to control the robot. The rosaria library was working fine. But suddenly today I encountered this problem and I am not able to solve. On running rosaria rode using 'rosrun rosaria RosAria' I face the following serial error. I have set full permissions for my serial port. (more) |
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2015-03-26 00:20:33 -0500 | marked best answer | Understanding /camera/depth/points What does the value in the 'data' field of the data published by /camera/depth/points represent? They are supposed to represent the distance of every pixel from the Kinect center point? How to I convert the data generated as point cloud into corresponding cartesian 3D coordinates ? An array of size [4915200x1] is generated. Which means distance to each pixel is represented using 16 entries in matrix (because 480 x 640 x 16 = 4915200). How do I understand this. Please explain the program behind visualization of this pointcloud data in rviz . I kept my kinect in front of an plain 2D wall parallel with it. I thought that I will get a matrix with uniform value through out as the wall is equidistant from kinect. But I get a data which I could not understand and decode! |
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2015-02-07 08:28:16 -0500 | asked a question | Publish fresh Laserscan type msg in topic [python] I want to publish a message with all the attributes manually assigned in a topic. I took LaserScan message type as example and assigned the parameters as in the below code. But I am facing various errors. The code is I am getting the following error.
So I tried uncommenting the l.serialize(l) function call line in all fashions and got similar error again. Please help me out. I just want to publish a user defined message of LaserScan datatype. Also they way I used to access the frame_id field of /chatter topic is the only way or there is a better way? Thanks in advance |
2015-02-07 04:52:36 -0500 | commented question | pointcloud_to_laserscan package not working in ROS indigo ya okay @ahendrix |
2015-02-06 17:55:23 -0500 | edited question | pointcloud_to_laserscan package not working in ROS indigo The pointcloud_to_laserscan package is not working properly in ROS Indigo. The Indigo build is done recently and seems to contain some error. As required by the node I have published the pointcloud data from Kinect in PointCloud2 format in /cloud_in topic. But the laserscan data that must be produced and published by Kinect in /scan topic seems erroneous. It returns an array full of 'Inf'. Please fix the error. My code for publishing in /cloud_in is as follows, I have attached the rosbag which contains the data in topics Attachment link: https://drive.google.com/file/d/0B7uP... Thanks in advance :) |
2015-02-06 14:47:47 -0500 | answered a question | pointcloud_to_laserscan package not working in ROS indigo I have attached the rosbag which contains the data in topics /cloud_in /rosout and erroneous /scan. Each topics have 20 msgs published. I have compressed the bag using Thanks in advance :) |
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2015-02-06 13:34:41 -0500 | commented answer | need to publish LaserScan topic I have all the deatils.. How do I publish all of them together!? |
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2015-02-02 14:44:13 -0500 | commented answer | printing kinect point cloud data alone gives garbage @Dan Lazewatsky If I use the latter method of converting the depthimage into grayscale image, how can I convert that into depth in some unit. As the grayscale value in the image are relative to largest depth. Am i right? Is there any const conversion factor between grayscale value and deptin in 'm'? |
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