PyObject* BSplineCurvePy::isPeriodic(PyObject *args)
{
if (!PyArg_ParseTuple(args, ""))
return 0;
Handle_Geom_BSplineCurve curve = Handle_Geom_BSplineCurve::DownCast
(getGeometryPtr()->handle());
Standard_Boolean val = curve->IsPeriodic();
return PyBool_FromLong(val ? 1 : 0);
}
Py::List BSplineCurvePy::getKnotSequence(void) const
{
Handle_Geom_BSplineCurve curve = Handle_Geom_BSplineCurve::DownCast
(getGeometryPtr()->handle());
Standard_Integer m = 0;
if (curve->IsPeriodic()) {
// knots=poles+2*degree-mult(1)+2
m = curve->NbPoles() + 2*curve->Degree() - curve->Multiplicity(1) + 2;
}
else {
// knots=poles+degree+1
for (int i=1; i<= curve->NbKnots(); i++)
m += curve->Multiplicity(i);
}
TColStd_Array1OfReal k(1,m);
curve->KnotSequence(k);
Py::List list;
for (Standard_Integer i=k.Lower(); i<=k.Upper(); i++) {
list.append(Py::Float(k(i)));
}
return list;
}