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#1020 Map BezierCurve to BSplineWithKnots

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This commit is contained in:
Thomas Krijnen
2020-10-11 10:38:38 +02:00
parent 38e5321dbb
commit d7f246c86d
1 changed files with 47 additions and 0 deletions
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src/ifcgeom/IfcGeomSerialisation.cpp
+47
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@@ -13,6 +13,7 @@
#include <TColStd_Array1OfReal.hxx>
#include <TColStd_Array2OfReal.hxx>
#include <TColStd_Array1OfInteger.hxx>
#include <Geom_BezierCurve.hxx>
#include "IfcGeom.h"
@@ -129,6 +130,52 @@ int convert_to_ifc(const Handle_Geom_Curve& c, IfcSchema::IfcCurve*& curve, bool
return 1;
}
#ifdef SCHEMA_HAS_IfcRationalBSplineSurfaceWithKnots
else if (c->DynamicType() == STANDARD_TYPE(Geom_BezierCurve)) {
Handle_Geom_BezierCurve bezier = Handle_Geom_BezierCurve::DownCast(c);
std::vector<int> mults;
std::vector<double> knots;
std::vector<double> weights;
IfcSchema::IfcKnotType::Value knot_spec = IfcSchema::IfcKnotType::IfcKnotType_QUASI_UNIFORM_KNOTS;
IfcSchema::IfcCartesianPoint::list::ptr points(new IfcSchema::IfcCartesianPoint::list);
TColgp_Array1OfPnt poles(1, bezier->NbPoles());
bezier->Poles(poles);
for (int i = 1; i <= bezier->NbPoles(); ++i) {
IfcSchema::IfcCartesianPoint* p;
if (!convert_to_ifc(poles.Value(i), p, advanced)) {
return 0;
}
points->push(p);
if (i == 1 || i == bezier->NbPoles()) {
mults.push_back(bezier->Degree() + 1);
} else {
mults.push_back(bezier->Degree());
}
knots.push_back((double) i - 1);
}
TColStd_Array1OfReal bspline_weights(1, bezier->NbPoles());
bezier->Weights(bspline_weights);
opencascade_array_to_vector(bspline_weights, weights);
curve = new IfcSchema::IfcRationalBSplineCurveWithKnots(
bezier->Degree(),
points,
IfcSchema::IfcBSplineCurveForm::IfcBSplineCurveForm_UNSPECIFIED,
bezier->IsClosed() != 0,
false,
mults,
knots,
knot_spec,
weights
);
return 1;
}
else if (c->DynamicType() == STANDARD_TYPE(Geom_BSplineCurve)) {
Handle_Geom_BSplineCurve bspline = Handle_Geom_BSplineCurve::DownCast(c);