Some processing experience
After processing the point cloud without color, how to add images for coloring
Add images
Right-click liscan, click Project settings.
After adding the file path of the camera, click “OK”.
Re-Output
Check Colorize After the step, click Start, then an information prompt will appear, we select yes, which means re-output (will not repeatedly run SLAM, only perform image extraction, filtering, and coloring).
Wait until the program finishes, then the coloring will be successful.
After processing the point cloud in the relative coordinate system, how to add RTK for absolute coordinate assignment
Add RTK file
Right-click liscan, click “Project settings”.
Select the RTK file, click “Confirm”.
Re-Optimize
Right-click liscan, click “Register”.
The program will display the registration interface, directly click “Optimize”, in the pop-up dialog box click “OK”.
Wait for the program to complete, and you will get the point cloud with absolute coordinates.
First processed the point cloud in the relative coordinate system, how to assign absolute coordinates through PPK
DGNSS settings
Right-click liscan, click “Project setting”.
After setting the relevant files and parameters of DGNSS and the target coordinate system, click “OK”
Run PPK Process
Individually check 'DGNSS Process', click 'Start', and obtain the PPK processed trajectory data.
Re-Optimize
Right-click liscan, click “Register”.
The program will display the registration interface, directly click “Optimize”, in the pop-up dialog box click “OK”
Wait for the program to complete, and you will get the point cloud with absolute coordinates.
How to import other point clouds for comparative analysis
In some cases, to compare point clouds collected at different times, or to compare point clouds collected by other devices with those collected by handheld devices.
Import Point cloud
Click 3D Button.
Select **Add,** supports formats such as lidata, las, laz.
Click “OK”
At this point, the project list will add a liscan.
Display according to the selected color
Select lidata file (for multiple selections, hold down ctrl), select “Display by selected”.
After displaying different data in different colors, you can use the profile for analysis.
