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https://git.salome-platform.org/gitpub/modules/geom.git
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415 lines
14 KiB
C++
415 lines
14 KiB
C++
// Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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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 Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License.
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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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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#include <Standard_Stream.hxx>
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#include <GEOMImpl_FillingDriver.hxx>
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#include <GEOM_Function.hxx>
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#include <GEOMImpl_IFilling.hxx>
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#include <GEOMImpl_Types.hxx>
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#include <BRep_Tool.hxx>
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#include <BRepAlgo.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRep_Builder.hxx>
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#include <BRepBuilderAPI_Copy.hxx>
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#include <TopAbs.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Shape.hxx>
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#include <TopoDS_Compound.hxx>
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#include <TopoDS_Edge.hxx>
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#include <TopoDS_Vertex.hxx>
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#include <TopExp_Explorer.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom_Surface.hxx>
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#include <Geom_TrimmedCurve.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_Circle.hxx>
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#include <Geom_Ellipse.hxx>
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#include <Geom_BezierCurve.hxx>
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#include <Geom_BSplineSurface.hxx>
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#include <GeomFill_Line.hxx>
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#include <GeomFill_AppSurf.hxx>
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#include <GeomFill_SectionGenerator.hxx>
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#include <Precision.hxx>
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#include <Standard_ConstructionError.hxx>
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#include <TColGeom_SequenceOfCurve.hxx>
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#include <ShapeFix_Face.hxx>
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#include <GeomAPI_PointsToBSplineSurface.hxx>
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#include <Geom_BSplineCurve.hxx>
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#include <GeomAPI_PointsToBSpline.hxx>
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#include <TColgp_SequenceOfPnt.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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//#include <BRepTools.hxx>
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//=======================================================================
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//function : GetID
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//purpose :
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//=======================================================================
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const Standard_GUID& GEOMImpl_FillingDriver::GetID()
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{
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static Standard_GUID aFillingDriver ("FF1BBB62-5D14-4df2-980B-3A668264EA16");
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return aFillingDriver;
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}
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//=======================================================================
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//function : GEOMImpl_FillingDriver
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//purpose :
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//=======================================================================
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GEOMImpl_FillingDriver::GEOMImpl_FillingDriver()
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{
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}
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//=======================================================================
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//function : Execute
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//purpose :
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//=======================================================================
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Standard_Integer GEOMImpl_FillingDriver::Execute(TFunction_Logbook& log) const
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{
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if (Label().IsNull()) return 0;
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Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
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if (aFunction.IsNull()) return 0;
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if (aFunction->GetType() != BASIC_FILLING) return 0;
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GEOMImpl_IFilling IF (aFunction);
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Handle(GEOM_Function) aShapeFunction = IF.GetShape();
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if (aShapeFunction.IsNull()) return 0;
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TopoDS_Shape aShape;
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BRepBuilderAPI_Copy Copy(aShapeFunction->GetValue());
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if( Copy.IsDone() )
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aShape = Copy.Shape();
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if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND) return 0;
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Standard_Integer mindeg = IF.GetMinDeg();
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Standard_Integer maxdeg = IF.GetMaxDeg();
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Standard_Real tol3d = IF.GetTol2D();
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Standard_Real tol2d = IF.GetTol3D();
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Standard_Integer nbiter = IF.GetNbIter();
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Standard_Boolean isApprox = IF.GetApprox();
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Standard_Integer aMethod = IF.GetMethod();
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if (mindeg > maxdeg) {
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Standard_RangeError::Raise("Minimal degree can not be more than maximal degree");
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}
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/* we verify the contents of the shape */
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TopExp_Explorer Ex;
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TopoDS_Shape Scurrent;
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Standard_Real First, Last;
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Handle(Geom_Curve) C;
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TopoDS_Compound aComp;
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BRep_Builder B;
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B.MakeCompound(aComp);
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TopoDS_Iterator It (aShape);
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for (; It.More(); It.Next()) {
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Scurrent = It.Value();
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if (Scurrent.ShapeType() != TopAbs_EDGE) {
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Handle(Geom_BSplineCurve) newC;
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if (Scurrent.ShapeType() == TopAbs_WIRE) {
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TColgp_SequenceOfPnt PntSeq;
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// collect points
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for (Ex.Init(Scurrent, TopAbs_EDGE); Ex.More(); Ex.Next()) {
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TopoDS_Edge E = TopoDS::Edge(Ex.Current());
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if (BRep_Tool::Degenerated(E)) continue;
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C = BRep_Tool::Curve(E, First, Last);
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if( E.Orientation() == TopAbs_REVERSED ) {
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C->Reverse();
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}
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Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C);
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while( !tc.IsNull() ) {
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C = tc->BasisCurve();
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tc = Handle(Geom_TrimmedCurve)::DownCast(C);
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}
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int nbp = 10;
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if( C->IsKind(STANDARD_TYPE(Geom_Line)) ) {
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nbp = 4;
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}
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else if( C->IsKind(STANDARD_TYPE(Geom_Circle)) ||
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C->IsKind(STANDARD_TYPE(Geom_Ellipse)) ) {
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nbp = (int)25*fabs(Last-First)/(2*PI);
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}
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else if( C->IsKind(STANDARD_TYPE(Geom_BezierCurve)) ) {
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Handle(Geom_BezierCurve) C3d = Handle(Geom_BezierCurve)::DownCast(C);
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nbp = C3d->NbPoles();
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}
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else if( C->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ) {
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Handle(Geom_BSplineCurve) C3d = Handle(Geom_BSplineCurve)::DownCast(C);
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nbp = C3d->NbPoles();
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}
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else {
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}
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if( nbp<4 ) nbp = 4;
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double dp = (Last-First)/(nbp-1);
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for(int i=1; i<nbp; i++) {
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gp_Pnt P;
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C->D0(First+dp*(i-1),P);
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PntSeq.Append(P);
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}
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}
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// add last point
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gp_Pnt P;
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C->D0(Last,P);
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PntSeq.Append(P);
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// create BSpline
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if(PntSeq.Length()>1) {
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TColgp_Array1OfPnt Pnts(1,PntSeq.Length());
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// check orientation of wire
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if( Scurrent.Orientation() == TopAbs_REVERSED ) {
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for(int i=1; i<=PntSeq.Length(); i++) {
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Pnts.SetValue(PntSeq.Length()-i+1,PntSeq.Value(i));
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}
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}
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else {
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for(int i=1; i<=PntSeq.Length(); i++) {
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Pnts.SetValue(i,PntSeq.Value(i));
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}
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}
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GeomAPI_PointsToBSpline PTB(Pnts);
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newC = Handle(Geom_BSplineCurve)::DownCast(PTB.Curve());
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// set periodic flag if curve is closed
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//if( newC->IsClosed() ) {
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// newC->SetPeriodic();
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//}
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// create edge
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double fp = newC->FirstParameter();
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double lp = newC->FirstParameter();
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gp_Pnt PF,PL;
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newC->D0(fp,PF);
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newC->D0(lp,PL);
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TopoDS_Vertex VF,VL;
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B.MakeVertex(VF,PF,1.e-7);
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B.MakeVertex(VL,PL,1.e-7);
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TopoDS_Edge newE;
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B.MakeEdge(newE,newC,1.e-7);
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B.Add(newE,VF);
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B.Add(newE,VL.Reversed());
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Scurrent = newE;
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}
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}
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if(newC.IsNull()) {
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Standard_ConstructionError::Raise("The argument compound must contain only edges");
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}
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}
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B.Add(aComp,Scurrent);
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}
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aShape = aComp;
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if (!isApprox) {
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// make filling as in old version of SALOME (before 4.1.1)
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GeomFill_SectionGenerator Section;
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Standard_Integer i = 0;
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Handle(Geom_Curve) aLastC;
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gp_Pnt PL1,PL2;
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for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
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Scurrent = Ex.Current();
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if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
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if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
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C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
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//if (Scurrent.Orientation() == TopAbs_REVERSED)
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// // Mantis isuue 0020659: consider the orientation of the edges
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// C = new Geom_TrimmedCurve(C, Last, First);
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//else
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// C = new Geom_TrimmedCurve(C, First, Last);
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C = new Geom_TrimmedCurve(C, First, Last);
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gp_Pnt P1,P2;
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C->D0(First,P1);
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C->D0(Last,P2);
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if( aMethod==1 && Scurrent.Orientation() == TopAbs_REVERSED ) {
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C->Reverse();
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}
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else if( aMethod==2 ) {
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if( i==0 ) {
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PL1 = P1;
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PL2 = P2;
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}
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else {
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double d1 = PL1.Distance(P1) + PL2.Distance(P2);
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double d2 = PL1.Distance(P2) + PL2.Distance(P1);
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if(d2<d1) {
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C->Reverse();
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PL1 = P2;
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PL2 = P1;
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}
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else {
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PL1 = P1;
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PL2 = P2;
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}
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}
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}
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Section.AddCurve(C);
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i++;
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}
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/* a 'tolerance' is used to compare 2 knots : see GeomFill_Generator.cdl */
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Section.Perform(Precision::Confusion());
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Handle(GeomFill_Line) Line = new GeomFill_Line(i);
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GeomFill_AppSurf App (mindeg, maxdeg, tol3d, tol2d, nbiter); /* user parameters */
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App.Perform(Line, Section);
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if (!App.IsDone()) return 0;
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Standard_Integer UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots;
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App.SurfShape(UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots);
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Handle(Geom_BSplineSurface) GBS = new Geom_BSplineSurface
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(App.SurfPoles(), App.SurfWeights(), App.SurfUKnots(), App.SurfVKnots(),
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App.SurfUMults(), App.SurfVMults(), App.UDegree(), App.VDegree());
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if (GBS.IsNull()) return 0;
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aShape = BRepBuilderAPI_MakeFace(GBS);
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}
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else {
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// implemented by skl 20.03.2008 for bug 16568
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// make approximation - try to create bspline surface
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// using GeomAPI_PointsToBSplineSurface
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TColGeom_SequenceOfCurve aSeq;
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int MaxNbPoles = 0;
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// add curves from edges to sequence and find maximal
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// number of poles if some of them are bsplines
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for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
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Scurrent = Ex.Current();
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if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
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if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
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C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
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Handle(Geom_TrimmedCurve) TC = Handle(Geom_TrimmedCurve)::DownCast(C);
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if(TC.IsNull()) {
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Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(C);
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if(!BC.IsNull()) {
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MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
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}
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}
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else {
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Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(TC->BasisCurve());
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if(BC.IsNull()) {
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Handle(Geom_TrimmedCurve) TC1 = Handle(Geom_TrimmedCurve)::DownCast(TC->BasisCurve());
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if(!TC1.IsNull()) {
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BC = Handle(Geom_BSplineCurve)::DownCast(TC1->BasisCurve());
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}
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}
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if(!BC.IsNull()) {
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MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
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}
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}
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aSeq.Append(C);
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}
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// prepare array of points for creation bspline surface
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// size of this array: by U parameter - number of curves,
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// by V parameter - determ using MaxNbPoles but it's
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// value must be between 21(min) and 101(max)
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int nbc = aSeq.Length();
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int nbp = Max(21,2*MaxNbPoles-1);
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if(nbp>101) nbp = 101;
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TColgp_Array2OfPnt Points(1,nbc,1,nbp);
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int ic = 1;
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for(; ic<=nbc; ic++) {
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Handle(Geom_Curve) C = aSeq.Value(ic);
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double fp = C->FirstParameter();
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double lp = C->LastParameter();
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double dp = (lp-fp)/(nbp-1);
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int j = 0;
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gp_Pnt P;
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for(; j<nbp; j++) {
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C->D0(fp+dp*j,P);
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Points.SetValue(ic,j+1,P);
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}
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}
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GeomAPI_PointsToBSplineSurface PTB(Points,mindeg,maxdeg,GeomAbs_C2,tol3d);
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Handle(Geom_BSplineSurface) BS = PTB.Surface();
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BRepBuilderAPI_MakeFace BB(BS);
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TopoDS_Face NewF = BB.Face();
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Handle(ShapeFix_Face) sff = new ShapeFix_Face(NewF);
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sff->Perform();
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sff->FixOrientation();
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aShape = sff->Face();
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}
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/* We test the validity of resulting shape */
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if (!BRepAlgo::IsValid((aShape))) {
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Standard_ConstructionError::Raise("Algorithm have produced an invalid shape result");
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return 0;
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}
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aFunction->SetValue(aShape);
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log.SetTouched(Label());
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return 1;
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}
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//=======================================================================
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//function : GEOMImpl_FillingDriver_Type_
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//purpose :
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//=======================================================================
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Standard_EXPORT Handle_Standard_Type& GEOMImpl_FillingDriver_Type_()
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{
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static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
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if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
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static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
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if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
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static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
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if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
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static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
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static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_FillingDriver",
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sizeof(GEOMImpl_FillingDriver),
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1,
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(Standard_Address)_Ancestors,
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(Standard_Address)NULL);
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return _aType;
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}
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//=======================================================================
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//function : DownCast
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//purpose :
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//=======================================================================
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const Handle(GEOMImpl_FillingDriver) Handle(GEOMImpl_FillingDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
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{
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Handle(GEOMImpl_FillingDriver) _anOtherObject;
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if (!AnObject.IsNull()) {
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if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_FillingDriver))) {
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_anOtherObject = Handle(GEOMImpl_FillingDriver)((Handle(GEOMImpl_FillingDriver)&)AnObject);
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}
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}
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return _anOtherObject;
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}
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