Hi!
Some functions that I found in src/librt/opennurbs_ext.cpp may be useful to
you.
In function 'CurveTree::CurveTree(ON_BrepFace* face) ',it seems to
subdivide NURBS curve rescurively until the subcurve
is near linear.Some functions below is called that is very important.
CurveTree::getVerticalTangent(const ON_Curve *curve, fastf_t min, fastf_t
max)
CurveTree::getHorizontalTangent(const ON_Curve *curve, fastf_t min,
fastf_t max)
CurveTree::getHVTangents(const ON_Curve* curve, ON_Interval& t,
std::list<fastf_t>& list)
Three functions above is used to subdivide curve into monotone piecewise.
CurveTree::subdivideCurve(const ON_Curve* curve, int adj_face_index,
double min, double max, bool innerTrim, int divDepth)
The function above is used to subdivide curve rescurively.
Expect to be useful to you!
Cheers
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