Point cloud modeling means creating 3d model using 3d point data.
3D Laser Scanning is a non-contact, non-destructive technology that digitally captures the shape of physical objects using a line of laser light. … In other words, 3D laser scanning is a way to capture a physical object’s exact size and shape into the computer world as a digital 3-dimensional representation.
BIM model has various level of details possible. It starts from LOD 300 and is up to LOD 600. So depending on LOD you can expect detailing.
Construction errors or onsite changes lead to may issues . 3D scanning technology is used for documenting these changes. Instead of measuring manually, 3d scan collects all information in form of 3d point cloud. It is then used for 3d bim model generation, hence creating actual view of what exists on site.
First point cloud should be imported in Revit. After the import is done, using various modeling tools of revit modeling is carried out.
Platforms like BIM 360 glue which are integrated with the survey data taken by surveyor could speed up the design process and help change management.
Total station is used for surveying and leveling.
Drones with a 3d camera attached is a common site now a days. Drones are used for 3D scanning of the building or construction site area. This is a very fast and accurate process to generate point could and further process it for BIM.
Civil 3d is absolutely important and high end software for civil engineers. It has lot many features regarding roads, storm water and sewage, topography, gis etc. All of these are important for a civil engineer, and could be helpful.
3D BIM modeling is used for documentation, integration, coordination, construction, management, operation and implementation in AEC.