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inside toBiArcs check if a spline is closed and split it into two parts if necessary

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wmayer
2017-09-29 16:43:01 +02:00
parent fa9332deb3
commit 025639ca0e
1 changed files with 18 additions and 2 deletions
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20
src/Mod/Part/App/BSplineCurveBiArcs.cpp
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@@ -219,9 +219,25 @@ std::list<Geometry*> GeomBSplineCurve::toBiArcs(double tolerance) const
gp_Vec v_start;
gp_Pnt p_end;
gp_Vec v_end;
this->myCurve->D1(this->myCurve->FirstParameter(), p_start, v_start);
this->myCurve->D0(this->myCurve->FirstParameter(), p_start);
this->myCurve->D0(this->myCurve->LastParameter(), p_end);
std::list<Geometry*> list;
createArcs(tolerance, list, p_start, v_start, this->myCurve->FirstParameter(), this->myCurve->LastParameter(), p_end, v_end);
// the spline is closed
if (p_start.Distance(p_end) < Precision::Intersection()) {
this->myCurve->D1(this->myCurve->FirstParameter(), p_start, v_start);
createArcs(tolerance, list, p_start, v_start, this->myCurve->FirstParameter(),
this->myCurve->LastParameter()/2, p_end, v_end);
this->myCurve->D1(this->myCurve->LastParameter()/2, p_start, v_start);
createArcs(tolerance, list, p_start, v_start, this->myCurve->LastParameter()/2,
this->myCurve->LastParameter(), p_end, v_end);
}
else {
this->myCurve->D1(this->myCurve->FirstParameter(), p_start, v_start);
createArcs(tolerance, list, p_start, v_start, this->myCurve->FirstParameter(),
this->myCurve->LastParameter(), p_end, v_end);
}
return list;
}