Nurbz
While the c-meshes include NURBS surfaces, they are frequently of a mixed
character and also include facetted parts. In form·Z it is also
possible to generate pure NURBS surfaces, which are specifically called
nurbz. These are generated from control lines in ways similar to
but also different from c-meshes. Available generation methods are by lofting,
from boundary curves, from UV curves, and by points. These are illustrated
below.
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