Hi!
I'v upload the patch to implement the adaptive bezier subdivision and
triangle mesh display,next I'll build a kt or qt tree to represent the division
in parameter region which seems like the SurfaceTree::subdivideSurface(...) in
opennurbs_ext.cpp,but the recursive termination condition is different.
So,Where to implement the kt/qt tree, in brep.cpp or opennurbs_ext.cpp?
the patch's link is :
https://sourceforge.net/tracker/index.php?func=detail&aid=3534876&group_id=105292&atid=640804#
Another question about Nurbs! In opennurbs, the operator for ON_4dPoint
has something special.
below is the operator +=
const double sw1 = (w>0.0) ? sqrt(w) : -sqrt(-w);
const double sw2 = (p.w>0.0) ? sqrt(p.w) : -sqrt(-p.w);
const double s1 = sw2/sw1;
const double s2 = sw1/sw2;
x = x*s1 + p.x*s2;
y = y*s1 + p.y*s2;
z = z*s1 + p.z*s2;
w = sw1*sw2;
So,why to implement the operator in this way?
Cheers!
Laijiren------------------------------------------------------------------------------
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