Questions tagged [laser-assembler]

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How to use multiple laser scanners for slam and navigation

Hi, we have multiple Robots on ROS2 Foxy and we would like to use Navigation2 with the slam_toolbox. Almost all of our robots have two laser scanners which seems to be not supported anywhere with the ...
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unexpected output from laser assembler

Hi everyone, I have a topic that publishes sensor_msgs/Pointcloud2 and my intention was to merge every 2 pointclouds of these messages. In order to do that I used point_cloud_assembler with this ...
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Error formating LaserScan to PointCloud

Hello, I am trying to covert LaserScan to PointCloud using laser_assembler. I am following the tutorials on the wiki.ros.org and I have also looked at others trying to achieve similar results as me in ...
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cannot transform laser using laser_assembler

I've successfully used laser_assembler to convert laser scans to pointclouds. However, when viewing the concatenated clouds in rviz they are not de-rotated (projected) accordingly with the fixed frame ...
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Laser_assemble for Hokuyo scans in Gazebo

Hi everyone! I'm trying to assemble some readings from a Hokuyo laser simulated in gazebo. The assembler I'm trying to use is the one you can download here: https://github.com/ros-perception/...
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Laser_assembler problem: Published Cloud with 0 points

Unable to get any point in the cloud. The periodic_snapshotter node gives the message: Published Cloud with 0 points My aim is to make a point cloud from the tilt_laser topic published by the bag file....
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Published Cloud with 0 points - Laser scan assembler

I have a bag file gotten from my laser sensor. Currently, I can see the stream of scans with Rviz, but I need to create a 3D view of the robot environment to be used as collision objects for path ...
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Multiple nodes providing same service, which one will get through (many to one services)

I am trying a very simple task. I have a 2D laser scanner and 3D velodyne laser on my robot and I want to create an assembled point cloud which includes data from both lasers in one point cloud. I am ...
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Ground filter package for tilt laser that works under Hydro?

Hello All, I am using the laser_assembler package to generate a point cloud from the scans of a tilting Hokuyo laser scanner. However, I am struggeling to find an existing ROS package to filter out ...
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ROS groovy catkin laser_assembler cmake error

Hi i get the following cmake error when I try to build a project with the laser_assembler ...
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laser_assembler and laser.bag issue

Hello everyone, I successfully completed and understood the tutorial http://wiki.ros.org/laser_assembler/Tutorials/HowToAssembleLaserScans However, there is something I cannot understand: the laser....
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2 Laser Mapping

Hello, I am using 2 sick lms100 laser range finders for mapping. I am using Hydro. In my launch file I have both scans being sent to the same topic. The original idea was that I could use gmapping, as ...
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launching laser_scan_assembler with periodic snapshotter

i need to make a composite point cloud. For that in tutorial and in help i have seen ,i need to create laser_assembler package . i need to launch laser_scan_assembler launch file along with ...
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laser_assembler cloud inaccuracy

I've tried to use the laser assembler to create a cloud, however the floors and the floor from the cloud isn't flat. Its more wavey than anything else. http://i.imgur.com/PYAtWTul.png The servo is ...
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Hokuyo scans to 3D point clouds (with tilt angle and sensor position)

Hi All, I have gone through the laser_assembler package and have successfully run its tutorial to convert scan data from Hokuyo UTM-30LX to composite point cloud. However, since the scan lines are in ...
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laser_assembler while moving

Hi all, This question is to clarify something. According to http://www.ros.org/wiki/laser_assembler the individual scans are projected into a fixed frame right? So, that means we can readily use the ...
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Setting a frame id

I have a problem in setting a world frame id. I did as below, but it doesn't work. It that right what I did and where should it actually be set? I've also tried ...
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laser_assembler with PointCloud2

I would like to know if we can ever work using laser_assembler with PointCloud2 data type. Last time I tried and so does mention in the the tutorial, laser_assemble is using PointCloud, instead of ...
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laser_assembler not gathering clouds

I've been trying to use laser_assembler package to gather every single cloud that is publish by another node. For this, I've created a client node to define the service needed from the laser_assembler ...
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Using laser_assembler in a separate node

I would like to give a try, if it works using laser_assembler for my purpose of building a point cloud. I'm somehow curios, is it possible(or better), to use the code snippet found in section 5.4 ...
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laser_assembler not gathering scan lines

I attempt to gather scan lines over time using laser_assembler package. I use this package by putting some lines of XML code in my launch file. I have in my code, one cloud variable already(please ...
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Hokuyo laser data to composite 3D map

Hello, I've just finished all of the laser pipeline tutorials using the laser.bag data provided by ROS. Now I want to use my Hokuyo laser to read in data and then turn that data into a 3D composite ...
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How to gain access to newly created point cloud map

After successfully running my point cloud data through the laser assembler node and creating a composite map how do I gain access to this new map and send it to different nodes? Originally posted by ...
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How to use laser_assembler correctly

Hello, I am trying to use the laser_assembler node but have had no luck getting it to work. I am using this tutorial on How to assemble laser scan lines into a composite point cloud. I'm reading in ...
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Laser Assembler with Hokuyo Utm-30lx

Hi, I have successfully run the laser_assembler tutorial at: http://www.ros.org/wiki/laser_assembler/Tutorials/HowToAssembleLaserScans The tutorial uses a bag file containing the laser data. How can I ...
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Is there a laser assembler that produces PointCloud2?

Hello, I am using the laser_assembler package to assemble laser scans. This implementation outputs pointCloud messages, and in parallel, point_cloud_converter has been deprecated for diamondback. Is ...
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