Generating a CAD model from digitized data cloud is a difficult and tedious process. Many commercial solutions exist but involve time consuming interaction to go from points to surface meshes. So it is becoming necessary to extract the CAD model from scanned data with little or no user interaction.
Trimmed surfaces have been avoided due to the reason that transition
surfaces such as merge surfaces, stitched surfaces etc. can not be generated
in between two trimmed surfaces. Some improvement in the algorithms of
the software can make it possible to generate transition surfaces in between
the trimmed surfaces.
