3D laser scanning along with the BIM environment sorts out usual issues of the construction industry such as discrepancies and inaccuracies on As-Built documents, revealing if something is missing or failing to reflect the existing conditions. Through the 3D laser scanning survey, millions of data points are obtained to form a point cloud which is the guide and reference to generate accurate 3D BIM models of different discipline, reflecting precisely what has been built, facilitating any data or geometry needed for as-built, renovation and documentation purpose.
The point cloud might be needed for several reasons, to generate a Revit model, or maybe even 2D cad as-built drawings. In BIMeng we make use of the point cloud files and create Revit models from them.