328d525a82
I have made further cleanup in Bezier and B spline surface code, and corrected the bug in face creation for B splines (Nate has also written that that was incomplete).
114 lines
4.3 KiB
C++
114 lines
4.3 KiB
C++
/***************************************************************************
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* Copyright (c) 2014-2015 Nathan Miller <Nathan.A.Mill[at]gmail.com> *
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* Balázs Bámer *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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#include <TopoDS.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Wire.hxx>
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#include <Geom_BezierCurve.hxx>
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#include <Precision.hxx>
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#include <gp_Trsf.hxx>
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#include <BRep_Tool.hxx>
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#include <TopExp_Explorer.hxx>
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#include <Standard_ConstructionError.hxx>
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#include <Base/Tools.h>
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#include <Base/Exception.h>
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#include <GeomFill_BezierCurves.hxx>
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#include <GeomFill.hxx>
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#endif
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#include "FeatureBezSurf.h"
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using namespace Surface;
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PROPERTY_SOURCE(Surface::BezSurf, Part::Feature)
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//Initial values
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BezSurf::BezSurf()
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{
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ADD_PROPERTY(aBList,(0,"Geom_BezierCurve"));
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ADD_PROPERTY(filltype,(1));
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}
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//Functions
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App::DocumentObjectExecReturn *BezSurf::execute(void)
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{
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//Begin Construction
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try{
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Handle_Geom_BezierCurve crvs[4];
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TopoDS_Wire aWire; //Create empty wire
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//Gets the healed wire
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getWire(aWire);
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Standard_Real u1, u2; // contains output
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TopExp_Explorer anExp (aWire, TopAbs_EDGE);
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int it = 0;
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for (; anExp.More(); anExp.Next()) {
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const TopoDS_Edge hedge = TopoDS::Edge (anExp.Current());
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TopLoc_Location heloc; // this will be output
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Handle_Geom_Curve c_geom = BRep_Tool::Curve(hedge, heloc, u1, u2); //The geometric curve
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Handle_Geom_BezierCurve b_geom = Handle_Geom_BezierCurve::DownCast(c_geom); //Try to get Bezier curve
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if (!b_geom.IsNull()) {
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gp_Trsf transf = heloc.Transformation();
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b_geom->Transform(transf); // apply original transformation to control points
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//Store Underlying Geometry
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crvs[it] = b_geom;
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}
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else {
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Standard_Failure::Raise("Curve not a Bezier Curve");
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}
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it++;
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}
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GeomFill_FillingStyle fstyle = getFillingStyle();
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GeomFill_BezierCurves aSurfBuilder; //Create Surface Builder
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int ncrv = aBList.getSize();
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if(ncrv==2) {aSurfBuilder.Init(crvs[0], crvs[1], fstyle);}
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else if(ncrv==3) {aSurfBuilder.Init(crvs[0], crvs[1], crvs[2], fstyle);}
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else if(ncrv==4) {aSurfBuilder.Init(crvs[0], crvs[1], crvs[2], crvs[3], fstyle);}
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createFace(aSurfBuilder.Surface());
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return App::DocumentObject::StdReturn;
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} //End Try
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catch(Standard_ConstructionError) {
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// message is in a Latin language, show a normal one
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return new App::DocumentObjectExecReturn("Curves are disjoint.");
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}
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catch (Standard_Failure) {
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Handle_Standard_Failure e = Standard_Failure::Caught();
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return new App::DocumentObjectExecReturn(e->GetMessageString());
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} //End Catch
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} //End execute
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