Nikka's profile - activity

Please go through this https://github.com/erik-nelson/blam

You have to convert your pcap data to .plc format then using cloud compare you can convert it into las format

@trgtylcnky If i want to store the data in point cloud format than what should i do ?

Hi, I have the same problem, did you solved it, please help me with this, i am not able to understand how can i achieve

Hi, did you complete your project, I want to do similar kind of project, any suggestion for that ?

hi did you complete your project. I am doing the same, i want to create 3D model using hokuyo lidar for that using loam_

Thank you for help I have created the launch file and execute it. While the bag file is running, but not able to create

can you please guide me about how to use laser_scan_assembler?? It will be really helpful

Convert Sensor_msg/LaserScan to Sensor_msg/PointCloud2 Hello everyone, I have my hokuyo lidar with me, i want to create

Thank you for instant reply, I am new to ros so plz can you suggest me any tutorial that will help me with this?

Hi, I am working on project where I need to combine LIDAR scans and INS data together. I am using velodyne 32e model that i want to mount on UAV so INS data is important for accuracy. I can collect the LIDAR data and INS data in rosbag format that i want to convert into las format with accurate positioning. So that i can view data in ArcGIS.

I am able to convert lidar data to las format but unable to combine Position INS data with it

Is there any suggestion how can i do this??? thank you.

Hi, I want to convert my rosbag file into ply file. I have velodyne data in rosbag file format that i can convert into pcd file with help of

 rosrun pcl_ros bag_to_pcd <input_file.bag> <topic> <output_directory>

That gives me multiple pcd file that is converted in ply file using:

pcl_pcd2ply input_file.pcd output_file.ply

but conversion is not completed it gives error to open in MeshLab:

While opening: '/home/nikka/Velo1.ply'

Error encountered while loading file: "/home/nikka/Velo.ply" Error details: Unespected eof

I am not getting what went wrong ? is the erro in bag2pcd or error in pcd2ply ???

can anyone plz help me with this...

Hi did you get any solution for that, I am trying the same with velodyne data. I want to create an 3D point cloud with velodyne data, i also use blam but its speed is slow so i am searching for better option,did you have any suggestion on that?? thank you

thank you stefan. After it converted in standard PointCloude2 massage format, still its not creating the point cloud. In rviz its giving me moving data Its not creating solid point cloud. can you please help me with this is there anything else that i can try?

Hello everyone, I want to create the point cloud from the lidar data. I have bag file of velodyne lidar data with that i want to create point cloud. using rviz i can view the data properly but can not generate the point cloud. I go through tutorial http://wiki.ros.org/laser_assembler/T... but not able to understand how to use Point Cloud Assembler . Please can anyone help me with this and simplify it for me... thank you

velodyne gives the output in pcap format. But for point cloud software like ArcGIS does not support pcap file format.So i want to convert this pcap file captured from velodyne and convert it into LAS. so that i can process it and get point cloud ..

Hello, I am a complete freshman on Linux, ROS and velodyne so, Please help me with this. I want to process the velodyne data to create an point cloud. As velodyne give output in .pcap file want to convert it into .las file. So that i can use it for point cloud generation. I have a raw .pcap file that i want to convert..

I tried with converting pcap to txt with tshark it convrt successfully. Then tried to convert txt to las using txt2las command but it give me error.

Error:
WARNING: cannot parse '    Urgent pointer: 0
' with 'xyz'. skipping ...
WARNING: cannot parse '    [SEQ/ACK analysis]
' with 'xyz'. skipping ...
WARNING: cannot parse '        [This is an ACK to the segment in frame: 361]
' with 'xyz'. skipping ...
WARNING: cannot parse '        [The RTT to ACK the segment was: 48.340006000 seconds]
' with 'xyz'. skipping ...
WARNING: cannot parse '        [Bytes in flight: 5]
' with 'xyz'. skipping ...
WARNING: cannot parse 'MSN Messenger Service
' with 'xyz'. skipping ...
WARNING: cannot parse '    OUT\r\n
' with 'xyz'. skipping ...
WARNING: cannot parse '
' with 'xyz'. skipping ...
ERROR: could not parse any lines with 'xyz'

Can any one Plz Help me with this ???? Thank you :)