1 // Copyright (C) 2007-2010 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
23 #include <Standard_Stream.hxx>
25 #include <GEOMImpl_FillingDriver.hxx>
26 #include <GEOM_Function.hxx>
27 #include <GEOMImpl_IFilling.hxx>
28 #include <GEOMImpl_Types.hxx>
30 #include <BRep_Tool.hxx>
31 #include <BRepAlgo.hxx>
32 #include <BRepBuilderAPI_MakeFace.hxx>
33 #include <BRep_Builder.hxx>
34 #include <BRepBuilderAPI_Copy.hxx>
38 #include <TopoDS_Shape.hxx>
39 #include <TopoDS_Compound.hxx>
40 #include <TopoDS_Edge.hxx>
41 #include <TopoDS_Vertex.hxx>
42 #include <TopExp_Explorer.hxx>
44 #include <Geom_Curve.hxx>
45 #include <Geom_Surface.hxx>
46 #include <Geom_TrimmedCurve.hxx>
47 #include <Geom_Line.hxx>
48 #include <Geom_Circle.hxx>
49 #include <Geom_Ellipse.hxx>
50 #include <Geom_BezierCurve.hxx>
51 #include <Geom_BSplineSurface.hxx>
52 #include <GeomFill_Line.hxx>
53 #include <GeomFill_AppSurf.hxx>
54 #include <GeomFill_SectionGenerator.hxx>
56 #include <Precision.hxx>
57 #include <Standard_ConstructionError.hxx>
59 #include <TColGeom_SequenceOfCurve.hxx>
60 #include <ShapeFix_Face.hxx>
61 #include <GeomAPI_PointsToBSplineSurface.hxx>
62 #include <Geom_BSplineCurve.hxx>
63 #include <GeomAPI_PointsToBSpline.hxx>
65 #include <TColgp_SequenceOfPnt.hxx>
66 #include <TColgp_Array1OfPnt.hxx>
68 //#include <BRepTools.hxx>
71 //=======================================================================
74 //=======================================================================
75 const Standard_GUID& GEOMImpl_FillingDriver::GetID()
77 static Standard_GUID aFillingDriver ("FF1BBB62-5D14-4df2-980B-3A668264EA16");
78 return aFillingDriver;
82 //=======================================================================
83 //function : GEOMImpl_FillingDriver
85 //=======================================================================
87 GEOMImpl_FillingDriver::GEOMImpl_FillingDriver()
91 //=======================================================================
94 //=======================================================================
95 Standard_Integer GEOMImpl_FillingDriver::Execute(TFunction_Logbook& log) const
97 if (Label().IsNull()) return 0;
98 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
99 if (aFunction.IsNull()) return 0;
101 if (aFunction->GetType() != BASIC_FILLING) return 0;
103 GEOMImpl_IFilling IF (aFunction);
104 Handle(GEOM_Function) aShapeFunction = IF.GetShape();
105 if (aShapeFunction.IsNull()) return 0;
108 BRepBuilderAPI_Copy Copy(aShapeFunction->GetValue());
110 aShape = Copy.Shape();
112 if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND) return 0;
114 Standard_Integer mindeg = IF.GetMinDeg();
115 Standard_Integer maxdeg = IF.GetMaxDeg();
116 Standard_Real tol3d = IF.GetTol2D();
117 Standard_Real tol2d = IF.GetTol3D();
118 Standard_Integer nbiter = IF.GetNbIter();
119 Standard_Boolean isApprox = IF.GetApprox();
120 Standard_Integer aMethod = IF.GetMethod();
122 if (mindeg > maxdeg) {
123 Standard_RangeError::Raise("Minimal degree can not be more than maximal degree");
126 /* we verify the contents of the shape */
128 TopoDS_Shape Scurrent;
129 Standard_Real First, Last;
130 Handle(Geom_Curve) C;
132 TopoDS_Compound aComp;
134 B.MakeCompound(aComp);
136 TopoDS_Iterator It (aShape);
137 for (; It.More(); It.Next()) {
138 Scurrent = It.Value();
139 if (Scurrent.ShapeType() != TopAbs_EDGE) {
140 Handle(Geom_BSplineCurve) newC;
141 if (Scurrent.ShapeType() == TopAbs_WIRE) {
142 TColgp_SequenceOfPnt PntSeq;
144 for (Ex.Init(Scurrent, TopAbs_EDGE); Ex.More(); Ex.Next()) {
145 TopoDS_Edge E = TopoDS::Edge(Ex.Current());
146 if (BRep_Tool::Degenerated(E)) continue;
147 C = BRep_Tool::Curve(E, First, Last);
148 if( E.Orientation() == TopAbs_REVERSED ) {
151 Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C);
152 while( !tc.IsNull() ) {
153 C = tc->BasisCurve();
154 tc = Handle(Geom_TrimmedCurve)::DownCast(C);
157 if( C->IsKind(STANDARD_TYPE(Geom_Line)) ) {
160 else if( C->IsKind(STANDARD_TYPE(Geom_Circle)) ||
161 C->IsKind(STANDARD_TYPE(Geom_Ellipse)) ) {
162 nbp = (int)25*fabs(Last-First)/(2*PI);
164 else if( C->IsKind(STANDARD_TYPE(Geom_BezierCurve)) ) {
165 Handle(Geom_BezierCurve) C3d = Handle(Geom_BezierCurve)::DownCast(C);
166 nbp = C3d->NbPoles();
168 else if( C->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ) {
169 Handle(Geom_BSplineCurve) C3d = Handle(Geom_BSplineCurve)::DownCast(C);
170 nbp = C3d->NbPoles();
175 double dp = (Last-First)/(nbp-1);
176 for(int i=1; i<nbp; i++) {
178 C->D0(First+dp*(i-1),P);
187 if(PntSeq.Length()>1) {
188 TColgp_Array1OfPnt Pnts(1,PntSeq.Length());
189 // check orientation of wire
190 if( Scurrent.Orientation() == TopAbs_REVERSED ) {
191 for(int i=1; i<=PntSeq.Length(); i++) {
192 Pnts.SetValue(PntSeq.Length()-i+1,PntSeq.Value(i));
196 for(int i=1; i<=PntSeq.Length(); i++) {
197 Pnts.SetValue(i,PntSeq.Value(i));
200 GeomAPI_PointsToBSpline PTB(Pnts);
201 newC = Handle(Geom_BSplineCurve)::DownCast(PTB.Curve());
202 // set periodic flag if curve is closed
203 //if( newC->IsClosed() ) {
204 // newC->SetPeriodic();
207 double fp = newC->FirstParameter();
208 double lp = newC->FirstParameter();
213 B.MakeVertex(VF,PF,1.e-7);
214 B.MakeVertex(VL,PL,1.e-7);
216 B.MakeEdge(newE,newC,1.e-7);
218 B.Add(newE,VL.Reversed());
223 Standard_ConstructionError::Raise("The argument compound must contain only edges");
226 B.Add(aComp,Scurrent);
231 // make filling as in old version of SALOME (before 4.1.1)
232 GeomFill_SectionGenerator Section;
233 Standard_Integer i = 0;
234 Handle(Geom_Curve) aLastC;
236 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
237 Scurrent = Ex.Current();
238 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
239 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
240 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
241 //if (Scurrent.Orientation() == TopAbs_REVERSED)
242 // // Mantis isuue 0020659: consider the orientation of the edges
243 // C = new Geom_TrimmedCurve(C, Last, First);
245 // C = new Geom_TrimmedCurve(C, First, Last);
246 C = new Geom_TrimmedCurve(C, First, Last);
251 if( aMethod==1 && Scurrent.Orientation() == TopAbs_REVERSED ) {
254 else if( aMethod==2 ) {
260 double d1 = PL1.Distance(P1) + PL2.Distance(P2);
261 double d2 = PL1.Distance(P2) + PL2.Distance(P1);
278 /* a 'tolerance' is used to compare 2 knots : see GeomFill_Generator.cdl */
279 Section.Perform(Precision::Confusion());
280 Handle(GeomFill_Line) Line = new GeomFill_Line(i);
282 GeomFill_AppSurf App (mindeg, maxdeg, tol3d, tol2d, nbiter); /* user parameters */
283 App.Perform(Line, Section);
285 if (!App.IsDone()) return 0;
286 Standard_Integer UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots;
287 App.SurfShape(UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots);
288 Handle(Geom_BSplineSurface) GBS = new Geom_BSplineSurface
289 (App.SurfPoles(), App.SurfWeights(), App.SurfUKnots(), App.SurfVKnots(),
290 App.SurfUMults(), App.SurfVMults(), App.UDegree(), App.VDegree());
292 if (GBS.IsNull()) return 0;
293 aShape = BRepBuilderAPI_MakeFace(GBS);
296 // implemented by skl 20.03.2008 for bug 16568
297 // make approximation - try to create bspline surface
298 // using GeomAPI_PointsToBSplineSurface
299 TColGeom_SequenceOfCurve aSeq;
301 // add curves from edges to sequence and find maximal
302 // number of poles if some of them are bsplines
303 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
304 Scurrent = Ex.Current();
305 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
306 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
307 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
308 Handle(Geom_TrimmedCurve) TC = Handle(Geom_TrimmedCurve)::DownCast(C);
310 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(C);
312 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
316 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(TC->BasisCurve());
318 Handle(Geom_TrimmedCurve) TC1 = Handle(Geom_TrimmedCurve)::DownCast(TC->BasisCurve());
320 BC = Handle(Geom_BSplineCurve)::DownCast(TC1->BasisCurve());
324 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
329 // prepare array of points for creation bspline surface
330 // size of this array: by U parameter - number of curves,
331 // by V parameter - determ using MaxNbPoles but it's
332 // value must be between 21(min) and 101(max)
333 int nbc = aSeq.Length();
334 int nbp = Max(21,2*MaxNbPoles-1);
335 if(nbp>101) nbp = 101;
336 TColgp_Array2OfPnt Points(1,nbc,1,nbp);
338 for(; ic<=nbc; ic++) {
339 Handle(Geom_Curve) C = aSeq.Value(ic);
340 double fp = C->FirstParameter();
341 double lp = C->LastParameter();
342 double dp = (lp-fp)/(nbp-1);
347 Points.SetValue(ic,j+1,P);
350 GeomAPI_PointsToBSplineSurface PTB(Points,mindeg,maxdeg,GeomAbs_C2,tol3d);
351 Handle(Geom_BSplineSurface) BS = PTB.Surface();
352 BRepBuilderAPI_MakeFace BB(BS);
353 TopoDS_Face NewF = BB.Face();
354 Handle(ShapeFix_Face) sff = new ShapeFix_Face(NewF);
356 sff->FixOrientation();
357 aShape = sff->Face();
360 /* We test the validity of resulting shape */
361 if (!BRepAlgo::IsValid((aShape))) {
362 Standard_ConstructionError::Raise("Algorithm have produced an invalid shape result");
366 aFunction->SetValue(aShape);
368 log.SetTouched(Label());
373 //=======================================================================
374 //function : GEOMImpl_FillingDriver_Type_
376 //=======================================================================
377 Standard_EXPORT Handle_Standard_Type& GEOMImpl_FillingDriver_Type_()
380 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
381 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
382 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
383 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
384 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
385 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
388 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
389 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_FillingDriver",
390 sizeof(GEOMImpl_FillingDriver),
392 (Standard_Address)_Ancestors,
393 (Standard_Address)NULL);
398 //=======================================================================
399 //function : DownCast
401 //=======================================================================
403 const Handle(GEOMImpl_FillingDriver) Handle(GEOMImpl_FillingDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
405 Handle(GEOMImpl_FillingDriver) _anOtherObject;
407 if (!AnObject.IsNull()) {
408 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_FillingDriver))) {
409 _anOtherObject = Handle(GEOMImpl_FillingDriver)((Handle(GEOMImpl_FillingDriver)&)AnObject);
413 return _anOtherObject;