Scan2BIM Workflow for Road and Tunnel Infrastructure Sites
I have a terrestrial laser scan of a road and an adjacent tunnel and have to turn it into a 3d model. My approach is to first vectorize polylines from the pointcloud in vertical sections, and then generate 3D objects (surfaces and solids) from these regularly spaced, vectorized sections. The road has both a curved and sloping alignment.
Has anyone tackled a similar task and found an effective workflow? I’ve tried several approaches but haven’t achieved satisfactory results yet. Most BricsCAD Scan2BIM tutorials focus on building or architectural use cases. However, these workflows don’t translate well to civil or infrastructure projects, where geometry is rarely orthogonal or level.
What I’ve tried so far:
- Manual extraction of the road axis as a 3D polyline.
- Creation of regularly spaced perpendicular lines along the axis using the ARRAYPATH command.
Next steps and challenges:
I would now like to create volume sections aligned to these regularly spaced lines, with a user-defined thickness. I’ve experimented with the BIMSECTION and SECTIONPLAN commands, but the results are not as expected. The generated section volumes are diagonal/horizontal, rather than aligned to the section lines. Adjusting the section box thickness requires manual grip manipulation, rather than a precise numerical definition via attributes.
Once the volume sections are properly defined, my plan is to use the ACTIVATESECTIONVIEW command to view each section perpendicularly and vectorize along the pointcloud.
Any hint or pointing to a tutorial is welcome.
Thank you.