mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-18 11:20:21 +00:00
Thomas Krijnen
83 lines
3.5 KiB
C++
83 lines
3.5 KiB
C++
/********************************************************************************
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* *
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* This file is part of IfcOpenShell. *
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* *
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* IfcOpenShell is free software: you can redistribute it and/or modify *
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* it under the terms of the Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 of the License, or *
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* (at your option) any later version. *
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* *
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* IfcOpenShell is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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#include <gp_Pnt.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include "../ifcgeom/IfcGeom.h"
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#include <Geom_BSplineCurve.hxx>
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#define Kernel MAKE_TYPE_NAME(Kernel)
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#ifdef SCHEMA_HAS_IfcBSplineCurveWithKnots
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcBSplineCurveWithKnots* l, Handle(Geom_Curve)& curve) {
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const bool is_rational = l->declaration().is(IfcSchema::IfcRationalBSplineCurveWithKnots::Class());
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const IfcSchema::IfcCartesianPoint::list::ptr cps = l->ControlPointsList();
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const std::vector<int> mults = l->KnotMultiplicities();
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const std::vector<double> knots = l->Knots();
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TColgp_Array1OfPnt Poles(0, cps->size() - 1);
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TColStd_Array1OfReal Weights(0, cps->size() - 1);
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TColStd_Array1OfReal Knots(0, (int)knots.size() - 1);
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TColStd_Array1OfInteger Mults(0, (int)mults.size() - 1);
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Standard_Integer Degree = l->Degree();
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Standard_Boolean Periodic = false;
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// @tfk: it appears to be wrong to expect a period curve when the curve is closed, see #586
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// Standard_Boolean Periodic = l->ClosedCurve();
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int i;
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if (is_rational) {
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IfcSchema::IfcRationalBSplineCurveWithKnots* rl = (IfcSchema::IfcRationalBSplineCurveWithKnots*)l;
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std::vector<double> weights = rl->WeightsData();
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i = 0;
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for (std::vector<double>::const_iterator it = weights.begin(); it != weights.end(); ++it, ++i) {
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Weights(i) = *it;
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}
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}
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i = 0;
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for (IfcSchema::IfcCartesianPoint::list::it it = cps->begin(); it != cps->end(); ++it, ++i) {
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gp_Pnt pnt;
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if (!convert(*it, pnt)) return false;
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Poles(i) = pnt;
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}
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i = 0;
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for (std::vector<int>::const_iterator it = mults.begin(); it != mults.end(); ++it, ++i) {
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Mults(i) = *it;
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}
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i = 0;
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for (std::vector<double>::const_iterator it = knots.begin(); it != knots.end(); ++it, ++i) {
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Knots(i) = *it;
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}
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if (is_rational) {
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curve = new Geom_BSplineCurve(Poles, Weights, Knots, Mults, Degree, Periodic);
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} else {
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curve = new Geom_BSplineCurve(Poles, Knots, Mults, Degree, Periodic);
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}
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return true;
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}
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#endif |