Hi!
     I find that the function brep_trimleafs_plot() in brep/brep_debug.cpp 
looks like  polygonal approximation of trimming curves which is a step in 
tessellation. But the function don't think about the longest edge size.So I 
want to do some work on the function.
     However,computing the longest edge size is in the  bspile/nurb_tess.c and 
the nurbs is represented by the form of struct face_g_snurb that is different 
from the ON_BrepSurface.Is there some function which can convert face_g_snurb 
to ON_BrepSurface.
     At last,I'v submit a patch for brep_debug.cpp and Are there someone can 
review it please?
 Cheers!
Laijiren
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