NavVis
Prevu3D supports the following scanners from NavVis:
- NavVis VLX (preferred)
- NavVis M6
Data Collection
In order to achieve the highest quality results, the following is required:
| Quality | Requirement |
|---|---|
| High overlap | Capturing areas with high overlap between passes to ensure there is little to no occlusion |
| Many images | Capture as many images as possible. Ideally panoramic images should be collected every 3 meters |
| Loop closures | Improves accuracy and error correction |
| Control points | For large scans this is recommended to reduce drift |
Data processing
NavVis offers both a local Linux processing option and a cloud processing option.
NavVis IVION Processing Settings
Select the following processing settings:
NavVis IVION Crop and Download
NEW! It is now possible to use the Crop and Download option in NavVis’ IVION software to download e57 files with panoramas. This feature allows NavVis point cloud data that was captured without control points to be aligned in IVION and exported in a compatible format for Prevu3D meshing. You can find more information on this feature in this documentation by Navvis.
Sitemaker Processing Settings (Linux)
Select the following processing settings:
| Setting |
|---|
Point Cloud Resolution: 5mm |
Point Cloud Format: ply |
Colorize point cloud: True |
CGenerate panoramic images: True |
If you are using Navvis Sitemaker to process your Navvis scans, you can retrieve the .nvd files from the generated datasets_web folder, and import these into IVION. From here, you can follow the usual workflow with the crop and download feature to export e57 files with panorama images.