I have Downloaded a data set from udacity open source self driving car program from here. It is a ROS (Robotic operating system) BAG file more info.The BAG file contains data collected from Velodyne HDL-32E LIDAR and stored as velodyne_packets that I converted to pointcloud Velodyne_pointcloud and stored it in another BAG file.The new bag file I have converted to .csv

But the tutorial I am following to create a terrain in unity from lidar dataset uses .las file in ARCGis . I want to know how to convert the said csv file to .las or is there any other way I could create a heightmap using this lidar data.

closed as unclear what you're asking by Andre Silva, aldo_tapia, ArMoraer, BERA, whyzar Jan 17 '18 at 14:04

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Can't you directly convert LiDAR data from origin software .las? Anyway, how is your data stored in .csv? Can you show us a sample (post first few lines). 22GB is a lot (how many records/lines? have an idea?), there might be some processing barriers with the right tool (that converts to .las) recommended. Also, can you confirm it is easy to convert the .csv to .txt? I may know some potential tools to help you out (.txt --> .las). Tks. – Andre Silva Jan 17 '18 at 12:57
  • Also what do you mean with "Generate Heightmap for unity from Lidar point data"? Can you explain in other words? what it 'for unity'? I get your main question here is how to convert from .csv to .las, correct? You need to make this post about just one question, otherwise it is considered 'too broad'. – Andre Silva Jan 17 '18 at 12:59
  • @ Andre Silva I cant open the csv file so I cant tell anything about it. – Rohan Dwivedi Jan 18 '18 at 5:55
  • 1
    That is strange; any text editor (like notepad++) should be able to open it. Is this because the file size? – Andre Silva Jan 18 '18 at 10:04