1 // Copyright (C) 2007-2012 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 <GEOMImpl_IFilling.hxx>
26 #include <GEOMImpl_Types.hxx>
28 #include <GEOM_Function.hxx>
30 #include <Basics_OCCTVersion.hxx>
32 #include <ShapeFix_Face.hxx>
34 #include <BRep_Tool.hxx>
35 #include <BRepAlgo.hxx>
36 #include <BRep_Builder.hxx>
37 #include <BRepBuilderAPI_MakeFace.hxx>
38 #include <BRepBuilderAPI_Copy.hxx>
41 #include <TopExp_Explorer.hxx>
43 #include <TopoDS_Compound.hxx>
44 #include <TopoDS_Edge.hxx>
45 #include <TopoDS_Shape.hxx>
46 #include <TopoDS_Vertex.hxx>
48 #include <Geom_Curve.hxx>
49 #include <Geom_Surface.hxx>
50 #include <Geom_TrimmedCurve.hxx>
51 #include <Geom_Line.hxx>
52 #include <Geom_Circle.hxx>
53 #include <Geom_Ellipse.hxx>
54 #include <Geom_BezierCurve.hxx>
55 #include <Geom_BSplineCurve.hxx>
56 #include <Geom_BSplineSurface.hxx>
57 #include <GeomFill_Line.hxx>
58 #include <GeomFill_AppSurf.hxx>
59 #include <GeomFill_SectionGenerator.hxx>
60 #include <GeomAPI_PointsToBSplineSurface.hxx>
61 #include <GeomAPI_PointsToBSpline.hxx>
63 #include <TColGeom_SequenceOfCurve.hxx>
65 #include <TColgp_SequenceOfPnt.hxx>
66 #include <TColgp_Array1OfPnt.hxx>
68 #include <Precision.hxx>
70 #include <Standard_ConstructionError.hxx>
72 //=======================================================================
75 //=======================================================================
76 const Standard_GUID& GEOMImpl_FillingDriver::GetID()
78 static Standard_GUID aFillingDriver ("FF1BBB62-5D14-4df2-980B-3A668264EA16");
79 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;
100 if (aFunction->GetType() != BASIC_FILLING) return 0;
102 GEOMImpl_IFilling IF (aFunction);
103 Handle(GEOM_Function) aShapeFunction = IF.GetShape();
104 if (aShapeFunction.IsNull()) return 0;
107 BRepBuilderAPI_Copy Copy (aShapeFunction->GetValue());
109 aShape = Copy.Shape();
111 if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND) return 0;
113 Standard_Integer mindeg = IF.GetMinDeg();
114 Standard_Integer maxdeg = IF.GetMaxDeg();
115 Standard_Real tol3d = IF.GetTol3D();
116 Standard_Boolean isApprox = IF.GetApprox();
118 if (mindeg > maxdeg) {
119 Standard_RangeError::Raise("Minimal degree can not be more than maximal degree");
122 /* we verify the contents of the shape */
124 TopoDS_Shape Scurrent;
125 Standard_Real First, Last;
126 Handle(Geom_Curve) C;
128 TopoDS_Compound aComp;
130 B.MakeCompound(aComp);
132 // 1. Convert argument wires, if any, into BSpline edges
133 TopoDS_Iterator It (aShape);
134 for (; It.More(); It.Next()) {
135 Scurrent = It.Value();
136 if (Scurrent.ShapeType() != TopAbs_EDGE) {
137 Handle(Geom_BSplineCurve) newC;
138 if (Scurrent.ShapeType() == TopAbs_WIRE) {
139 TColgp_SequenceOfPnt PntSeq;
141 for (Ex.Init(Scurrent, TopAbs_EDGE); Ex.More(); Ex.Next()) {
142 TopoDS_Edge E = TopoDS::Edge(Ex.Current());
143 if (BRep_Tool::Degenerated(E)) continue;
144 C = BRep_Tool::Curve(E, First, Last);
145 if( E.Orientation() == TopAbs_REVERSED ) {
148 Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C);
149 while( !tc.IsNull() ) {
150 C = tc->BasisCurve();
151 tc = Handle(Geom_TrimmedCurve)::DownCast(C);
154 if( C->IsKind(STANDARD_TYPE(Geom_Line)) ) {
157 else if( C->IsKind(STANDARD_TYPE(Geom_Circle)) ||
158 C->IsKind(STANDARD_TYPE(Geom_Ellipse)) ) {
159 nbp = (int)25*fabs(Last-First)/(2.*M_PI);
161 else if( C->IsKind(STANDARD_TYPE(Geom_BezierCurve)) ) {
162 Handle(Geom_BezierCurve) C3d = Handle(Geom_BezierCurve)::DownCast(C);
163 nbp = C3d->NbPoles();
165 else if( C->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ) {
166 Handle(Geom_BSplineCurve) C3d = Handle(Geom_BSplineCurve)::DownCast(C);
167 nbp = C3d->NbPoles();
172 double dp = (Last-First)/(nbp-1);
173 for(int i=1; i<nbp; i++) {
175 C->D0(First+dp*(i-1),P);
184 if(PntSeq.Length()>1) {
185 TColgp_Array1OfPnt Pnts(1,PntSeq.Length());
186 // check orientation of wire
187 if( Scurrent.Orientation() == TopAbs_REVERSED ) {
188 for(int i=1; i<=PntSeq.Length(); i++) {
189 Pnts.SetValue(PntSeq.Length()-i+1,PntSeq.Value(i));
193 for(int i=1; i<=PntSeq.Length(); i++) {
194 Pnts.SetValue(i,PntSeq.Value(i));
197 GeomAPI_PointsToBSpline PTB (Pnts);
198 newC = Handle(Geom_BSplineCurve)::DownCast(PTB.Curve());
199 // set periodic flag if curve is closed
200 //if( newC->IsClosed() ) {
201 // newC->SetPeriodic();
204 double fp = newC->FirstParameter();
205 double lp = newC->FirstParameter();
210 B.MakeVertex(VF,PF,1.e-7);
211 B.MakeVertex(VL,PL,1.e-7);
213 B.MakeEdge(newE,newC,1.e-7);
215 B.Add(newE,VL.Reversed());
220 Standard_ConstructionError::Raise("The argument compound must contain only edges");
223 B.Add(aComp,Scurrent);
227 // 2. The surface construction
229 // make filling as in old version of SALOME (before 4.1.1)
231 Standard_Real tol2d = IF.GetTol2D();
232 Standard_Integer nbiter = IF.GetNbIter();
233 Standard_Integer aMethod = IF.GetMethod();
235 GeomFill_SectionGenerator Section;
236 Standard_Integer i = 0;
237 Handle(Geom_Curve) aLastC;
239 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
240 Scurrent = Ex.Current();
241 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
242 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
243 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
244 //if (Scurrent.Orientation() == TopAbs_REVERSED)
245 // // Mantis isuue 0020659: consider the orientation of the edges
246 // C = new Geom_TrimmedCurve(C, Last, First);
248 // C = new Geom_TrimmedCurve(C, First, Last);
249 C = new Geom_TrimmedCurve(C, First, Last);
254 if (aMethod == 1 && Scurrent.Orientation() == TopAbs_REVERSED) {
257 else if (aMethod == 2) {
263 double d1 = PL1.Distance(P1) + PL2.Distance(P2);
264 double d2 = PL1.Distance(P2) + PL2.Distance(P1);
281 /* a 'tolerance' is used to compare 2 knots : see GeomFill_Generator.cdl */
282 Section.Perform(Precision::Confusion());
283 Handle(GeomFill_Line) Line = new GeomFill_Line(i);
285 GeomFill_AppSurf App (mindeg, maxdeg, tol3d, tol2d, nbiter); /* user parameters */
286 App.Perform(Line, Section);
288 if (!App.IsDone()) return 0;
289 Standard_Integer UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots;
290 App.SurfShape(UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots);
291 Handle(Geom_BSplineSurface) GBS = new Geom_BSplineSurface
292 (App.SurfPoles(), App.SurfWeights(), App.SurfUKnots(), App.SurfVKnots(),
293 App.SurfUMults(), App.SurfVMults(), App.UDegree(), App.VDegree());
295 if (GBS.IsNull()) return 0;
296 #if OCC_VERSION_LARGE > 0x06050100 // for OCC-6.5.2 and higher version
297 aShape = BRepBuilderAPI_MakeFace(GBS, Precision::Confusion());
299 aShape = BRepBuilderAPI_MakeFace(GBS);
303 // implemented by skl 20.03.2008 for bug 16568
304 // make approximation - try to create bspline surface
305 // using GeomAPI_PointsToBSplineSurface
307 TColGeom_SequenceOfCurve aSeq;
310 // add curves from edges to sequence and find maximal
311 // number of poles if some of them are bsplines
312 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
313 Scurrent = Ex.Current();
314 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
315 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
316 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
317 Handle(Geom_TrimmedCurve) TC = Handle(Geom_TrimmedCurve)::DownCast(C);
319 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(C);
321 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
325 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(TC->BasisCurve());
327 Handle(Geom_TrimmedCurve) TC1 = Handle(Geom_TrimmedCurve)::DownCast(TC->BasisCurve());
329 BC = Handle(Geom_BSplineCurve)::DownCast(TC1->BasisCurve());
333 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
338 // prepare array of points for creation bspline surface
339 // size of this array: by U parameter - number of curves,
340 // by V parameter - determ using MaxNbPoles but it's
341 // value must be between 21(min) and 101(max)
342 int nbc = aSeq.Length();
343 int nbp = Max(21, 2*MaxNbPoles-1);
345 // commented for Mantis issue 0021541
346 //if (nbp > 101) nbp = 101;
348 TColgp_Array2OfPnt Points (1, nbc, 1, nbp);
350 for (; ic <= nbc; ic++) {
351 Handle(Geom_Curve) C = aSeq.Value(ic);
352 double fp = C->FirstParameter();
353 double lp = C->LastParameter();
354 double dp = (lp-fp)/(nbp-1);
357 for (; j < nbp; j++) {
359 Points.SetValue(ic, j+1, P);
362 GeomAPI_PointsToBSplineSurface PTB (Points, mindeg, maxdeg, GeomAbs_C2, tol3d);
363 Handle(Geom_BSplineSurface) BS = PTB.Surface();
364 #if OCC_VERSION_LARGE > 0x06050100 // for OCC-6.5.2 and higher version
365 BRepBuilderAPI_MakeFace BB (BS, Precision::Confusion());
367 BRepBuilderAPI_MakeFace BB (BS);
369 TopoDS_Face NewF = BB.Face();
370 Handle(ShapeFix_Face) sff = new ShapeFix_Face (NewF);
372 sff->FixOrientation();
373 aShape = sff->Face();
376 /* We test the validity of resulting shape */
377 if (!BRepAlgo::IsValid((aShape))) {
378 Standard_ConstructionError::Raise("Algorithm has produced an invalid shape result");
382 aFunction->SetValue(aShape);
384 log.SetTouched(Label());
389 //=======================================================================
390 //function : GEOMImpl_FillingDriver_Type_
392 //=======================================================================
393 Standard_EXPORT Handle_Standard_Type& GEOMImpl_FillingDriver_Type_()
395 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
396 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
397 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
398 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
399 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
400 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
402 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
403 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_FillingDriver",
404 sizeof(GEOMImpl_FillingDriver),
406 (Standard_Address)_Ancestors,
407 (Standard_Address)NULL);
412 //=======================================================================
413 //function : DownCast
415 //=======================================================================
416 const Handle(GEOMImpl_FillingDriver) Handle(GEOMImpl_FillingDriver)::DownCast
417 (const Handle(Standard_Transient)& AnObject)
419 Handle(GEOMImpl_FillingDriver) _anOtherObject;
421 if (!AnObject.IsNull()) {
422 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_FillingDriver))) {
423 _anOtherObject = Handle(GEOMImpl_FillingDriver)((Handle(GEOMImpl_FillingDriver)&)AnObject);
427 return _anOtherObject;