1 // Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 #include <Standard_Stream.hxx>
24 #include <GEOMImpl_FillingDriver.hxx>
25 #include <GEOM_Function.hxx>
26 #include <GEOMImpl_IFilling.hxx>
27 #include <GEOMImpl_Types.hxx>
29 #include <BRep_Tool.hxx>
30 #include <BRepAlgo.hxx>
31 #include <BRepBuilderAPI_MakeFace.hxx>
32 #include <BRep_Builder.hxx>
36 #include <TopoDS_Shape.hxx>
37 #include <TopoDS_Compound.hxx>
38 #include <TopoDS_Edge.hxx>
39 #include <TopoDS_Vertex.hxx>
40 #include <TopExp_Explorer.hxx>
42 #include <Geom_Curve.hxx>
43 #include <Geom_Surface.hxx>
44 #include <Geom_TrimmedCurve.hxx>
45 #include <Geom_Line.hxx>
46 #include <Geom_Circle.hxx>
47 #include <Geom_Ellipse.hxx>
48 #include <Geom_BezierCurve.hxx>
49 #include <Geom_BSplineSurface.hxx>
50 #include <GeomFill_Line.hxx>
51 #include <GeomFill_AppSurf.hxx>
52 #include <GeomFill_SectionGenerator.hxx>
54 #include <Precision.hxx>
55 #include <Standard_ConstructionError.hxx>
57 #include <TColGeom_SequenceOfCurve.hxx>
58 #include <ShapeFix_Face.hxx>
59 #include <GeomAPI_PointsToBSplineSurface.hxx>
60 #include <Geom_BSplineCurve.hxx>
61 #include <GeomAPI_PointsToBSpline.hxx>
63 #include <TColgp_SequenceOfPnt.hxx>
64 #include <TColgp_Array1OfPnt.hxx>
66 //#include <BRepTools.hxx>
69 //=======================================================================
72 //=======================================================================
73 const Standard_GUID& GEOMImpl_FillingDriver::GetID()
75 static Standard_GUID aFillingDriver ("FF1BBB62-5D14-4df2-980B-3A668264EA16");
76 return aFillingDriver;
80 //=======================================================================
81 //function : GEOMImpl_FillingDriver
83 //=======================================================================
85 GEOMImpl_FillingDriver::GEOMImpl_FillingDriver()
89 //=======================================================================
92 //=======================================================================
93 Standard_Integer GEOMImpl_FillingDriver::Execute(TFunction_Logbook& log) const
95 if (Label().IsNull()) return 0;
96 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
97 if (aFunction.IsNull()) return 0;
99 if (aFunction->GetType() != BASIC_FILLING) return 0;
101 GEOMImpl_IFilling IF (aFunction);
102 Handle(GEOM_Function) aShapeFunction = IF.GetShape();
103 if (aShapeFunction.IsNull()) return 0;
104 TopoDS_Shape aShape = aShapeFunction->GetValue();
105 if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND) return 0;
107 Standard_Integer mindeg = IF.GetMinDeg();
108 Standard_Integer maxdeg = IF.GetMaxDeg();
109 Standard_Real tol3d = IF.GetTol2D();
110 Standard_Real tol2d = IF.GetTol3D();
111 Standard_Integer nbiter = IF.GetNbIter();
112 Standard_Boolean isApprox = IF.GetApprox();
113 Standard_Integer aMethod = IF.GetMethod();
115 if (mindeg > maxdeg) {
116 Standard_RangeError::Raise("Minimal degree can not be more than maximal degree");
119 /* we verify the contents of the shape */
121 TopoDS_Shape Scurrent;
122 Standard_Real First, Last;
123 Handle(Geom_Curve) C;
125 TopoDS_Compound aComp;
127 B.MakeCompound(aComp);
129 TopoDS_Iterator It (aShape);
130 for (; It.More(); It.Next()) {
131 Scurrent = It.Value();
132 if (Scurrent.ShapeType() != TopAbs_EDGE) {
133 Handle(Geom_BSplineCurve) newC;
134 if (Scurrent.ShapeType() == TopAbs_WIRE) {
135 TColgp_SequenceOfPnt PntSeq;
137 for (Ex.Init(Scurrent, TopAbs_EDGE); Ex.More(); Ex.Next()) {
138 TopoDS_Edge E = TopoDS::Edge(Ex.Current());
139 if (BRep_Tool::Degenerated(E)) continue;
140 C = BRep_Tool::Curve(E, First, Last);
141 if( E.Orientation() == TopAbs_REVERSED ) {
144 Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C);
145 while( !tc.IsNull() ) {
146 C = tc->BasisCurve();
147 tc = Handle(Geom_TrimmedCurve)::DownCast(C);
150 if( C->IsKind(STANDARD_TYPE(Geom_Line)) ) {
153 else if( C->IsKind(STANDARD_TYPE(Geom_Circle)) ||
154 C->IsKind(STANDARD_TYPE(Geom_Ellipse)) ) {
155 nbp = (int)25*fabs(Last-First)/(2*PI);
157 else if( C->IsKind(STANDARD_TYPE(Geom_BezierCurve)) ) {
158 Handle(Geom_BezierCurve) C3d = Handle(Geom_BezierCurve)::DownCast(C);
159 nbp = C3d->NbPoles();
161 else if( C->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ) {
162 Handle(Geom_BSplineCurve) C3d = Handle(Geom_BSplineCurve)::DownCast(C);
163 nbp = C3d->NbPoles();
168 double dp = (Last-First)/(nbp-1);
169 for(int i=1; i<nbp; i++) {
171 C->D0(First+dp*(i-1),P);
180 if(PntSeq.Length()>1) {
181 TColgp_Array1OfPnt Pnts(1,PntSeq.Length());
182 // check orientation of wire
183 if( Scurrent.Orientation() == TopAbs_REVERSED ) {
184 for(int i=1; i<=PntSeq.Length(); i++) {
185 Pnts.SetValue(PntSeq.Length()-i+1,PntSeq.Value(i));
189 for(int i=1; i<=PntSeq.Length(); i++) {
190 Pnts.SetValue(i,PntSeq.Value(i));
193 GeomAPI_PointsToBSpline PTB(Pnts);
194 newC = Handle(Geom_BSplineCurve)::DownCast(PTB.Curve());
195 // set periodic flag if curve is closed
196 //if( newC->IsClosed() ) {
197 // newC->SetPeriodic();
200 double fp = newC->FirstParameter();
201 double lp = newC->FirstParameter();
206 B.MakeVertex(VF,PF,1.e-7);
207 B.MakeVertex(VL,PL,1.e-7);
209 B.MakeEdge(newE,newC,1.e-7);
211 B.Add(newE,VL.Reversed());
216 Standard_ConstructionError::Raise("The argument compound must contain only edges");
219 B.Add(aComp,Scurrent);
224 // make filling as in old version of SALOME (before 4.1.1)
225 GeomFill_SectionGenerator Section;
226 Standard_Integer i = 0;
227 Handle(Geom_Curve) aLastC;
229 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
230 Scurrent = Ex.Current();
231 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
232 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
233 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
234 //if (Scurrent.Orientation() == TopAbs_REVERSED)
235 // // Mantis isuue 0020659: consider the orientation of the edges
236 // C = new Geom_TrimmedCurve(C, Last, First);
238 // C = new Geom_TrimmedCurve(C, First, Last);
239 C = new Geom_TrimmedCurve(C, First, Last);
244 if( aMethod==1 && Scurrent.Orientation() == TopAbs_REVERSED ) {
247 else if( aMethod==2 ) {
253 double d1 = PL1.Distance(P1) + PL2.Distance(P2);
254 double d2 = PL1.Distance(P2) + PL2.Distance(P1);
271 /* a 'tolerance' is used to compare 2 knots : see GeomFill_Generator.cdl */
272 Section.Perform(Precision::Confusion());
273 Handle(GeomFill_Line) Line = new GeomFill_Line(i);
275 GeomFill_AppSurf App (mindeg, maxdeg, tol3d, tol2d, nbiter); /* user parameters */
276 App.Perform(Line, Section);
278 if (!App.IsDone()) return 0;
279 Standard_Integer UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots;
280 App.SurfShape(UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots);
281 Handle(Geom_BSplineSurface) GBS = new Geom_BSplineSurface
282 (App.SurfPoles(), App.SurfWeights(), App.SurfUKnots(), App.SurfVKnots(),
283 App.SurfUMults(), App.SurfVMults(), App.UDegree(), App.VDegree());
285 if (GBS.IsNull()) return 0;
286 aShape = BRepBuilderAPI_MakeFace(GBS);
289 // implemented by skl 20.03.2008 for bug 16568
290 // make approximation - try to create bspline surface
291 // using GeomAPI_PointsToBSplineSurface
292 TColGeom_SequenceOfCurve aSeq;
294 // add curves from edges to sequence and find maximal
295 // number of poles if some of them are bsplines
296 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
297 Scurrent = Ex.Current();
298 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
299 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
300 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
301 Handle(Geom_TrimmedCurve) TC = Handle(Geom_TrimmedCurve)::DownCast(C);
303 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(C);
305 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
309 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(TC->BasisCurve());
311 Handle(Geom_TrimmedCurve) TC1 = Handle(Geom_TrimmedCurve)::DownCast(TC->BasisCurve());
313 BC = Handle(Geom_BSplineCurve)::DownCast(TC1->BasisCurve());
317 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
322 // prepare array of points for creation bspline surface
323 // size of this array: by U parameter - number of curves,
324 // by V parameter - determ using MaxNbPoles but it's
325 // value must be between 21(min) and 101(max)
326 int nbc = aSeq.Length();
327 int nbp = Max(21,2*MaxNbPoles-1);
328 if(nbp>101) nbp = 101;
329 TColgp_Array2OfPnt Points(1,nbc,1,nbp);
331 for(; ic<=nbc; ic++) {
332 Handle(Geom_Curve) C = aSeq.Value(ic);
333 double fp = C->FirstParameter();
334 double lp = C->LastParameter();
335 double dp = (lp-fp)/(nbp-1);
340 Points.SetValue(ic,j+1,P);
343 GeomAPI_PointsToBSplineSurface PTB(Points,mindeg,maxdeg,GeomAbs_C2,tol3d);
344 Handle(Geom_BSplineSurface) BS = PTB.Surface();
345 BRepBuilderAPI_MakeFace BB(BS);
346 TopoDS_Face NewF = BB.Face();
347 Handle(ShapeFix_Face) sff = new ShapeFix_Face(NewF);
349 sff->FixOrientation();
350 aShape = sff->Face();
353 /* We test the validity of resulting shape */
354 if (!BRepAlgo::IsValid((aShape))) {
355 Standard_ConstructionError::Raise("Algorithm have produced an invalid shape result");
359 aFunction->SetValue(aShape);
361 log.SetTouched(Label());
366 //=======================================================================
367 //function : GEOMImpl_FillingDriver_Type_
369 //=======================================================================
370 Standard_EXPORT Handle_Standard_Type& GEOMImpl_FillingDriver_Type_()
373 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
374 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
375 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
376 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
377 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
378 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
381 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
382 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_FillingDriver",
383 sizeof(GEOMImpl_FillingDriver),
385 (Standard_Address)_Ancestors,
386 (Standard_Address)NULL);
391 //=======================================================================
392 //function : DownCast
394 //=======================================================================
396 const Handle(GEOMImpl_FillingDriver) Handle(GEOMImpl_FillingDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
398 Handle(GEOMImpl_FillingDriver) _anOtherObject;
400 if (!AnObject.IsNull()) {
401 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_FillingDriver))) {
402 _anOtherObject = Handle(GEOMImpl_FillingDriver)((Handle(GEOMImpl_FillingDriver)&)AnObject);
406 return _anOtherObject;