Import Point Cloud Data from LAS/LAZ

Standard operating procedure

1. Import the 3D data (“las” or “.laz” file) by using “File | Import 3D Model | Import from LAS” from the menu bar and choose the file from the directory of your computer.
2. The “Import from LAS” dialog appears requiring the following input in the “Scans” tab:
   • Select the scan(s) by enabling the checkbox(es)
   • Reconstruction tab:
     • Select the reconstruction mode from the drop-down menu. The Preset setting (Fast, Medium, High) controls the resolution of the generated mesh. 
     • Select the texture source: scanner projection, point colours, or none
     • Trim the point cloud in the 3D viewer by the is use of the provided features:  
       • Click the “Select Region to Trim” button and enclose the region to delete by dragging the cursor across the 3D point cloud while keeping the left mouse button pressed. Release the mouse button and the selected region is highlighted in red. Delete the desired region by pressing the “Enter” key.
       • Click the “Clear Selection” button to delete the selection.
       • Click the “Restore Point Cloud” button to keep the original loaded point cloud
   • Referencing tab: 
     • Choose the referencing mode from the pull-down menu. Following options are available:
       • Unreferenced (x, y, z)
       • Referenced (specific co-ordinate system)     
       • Referenced (generic E, N, H)
       • Referenced (generic N, E, H)
     • Selection of the co-ordinate system:
       • The referencing modes Unreferenced (x, y, z), Referenced (generic E, N, H) and Referenced (generic N, E, H) requires the selection of the unit from the pull-down menu. Millimetre, meter, inch, international food and US-survey foot are available.
       • Referenced (specific co-ordinate system) requires the selection of the specific co-ordinate system in the “Select Co-ordinate Reference System” dialog open by clicking “Browse Co-ordinate Systems”. Specify the co-ordinate system [horizontal and vertical system] in the Select Co-ordinate Reference System dialog and click the “Select” button.
   • View tab:
     • Checkbox Point Cloud  hides/shows the imported point cloud in the 3D viewer
     • Checkbox Bounding Box hides/shows the extension the point cloud
     • Checkbox Scanner Positions hide/shows the scanner position by green pyramids in the 3D viewer
     • The size of the scanner can be adjusted by using the slider Scanner View Size
3. Confirm the conversion by clicking in the “Generate 3D Model” button and choose the directory on your computer to save the “.jm3x” file