Rapid surfacing is the wrapping of NURBS surfaces over a polygon model.
This method is a very quick method of creating a full surface model which can be then typically transferred into a CAD package as a IGES or STEP file. The cloud of points from the laser can easily be transformed into a more usable format such as a polygonal model.
A polygonal model is a triangular faced mesh surface that can be used in downstream CAD applications to create fully robust 3D models or can be sent directly to 3D printing machines and other such rapid prototyping machines.
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