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>
37 #include <TopoDS_Shape.hxx>
38 #include <TopoDS_Compound.hxx>
39 #include <TopoDS_Edge.hxx>
40 #include <TopoDS_Vertex.hxx>
41 #include <TopExp_Explorer.hxx>
43 #include <Geom_Curve.hxx>
44 #include <Geom_Surface.hxx>
45 #include <Geom_TrimmedCurve.hxx>
46 #include <Geom_Line.hxx>
47 #include <Geom_Circle.hxx>
48 #include <Geom_Ellipse.hxx>
49 #include <Geom_BezierCurve.hxx>
50 #include <Geom_BSplineSurface.hxx>
51 #include <GeomFill_Line.hxx>
52 #include <GeomFill_AppSurf.hxx>
53 #include <GeomFill_SectionGenerator.hxx>
55 #include <Precision.hxx>
56 #include <Standard_ConstructionError.hxx>
58 #include <TColGeom_SequenceOfCurve.hxx>
59 #include <ShapeFix_Face.hxx>
60 #include <GeomAPI_PointsToBSplineSurface.hxx>
61 #include <Geom_BSplineCurve.hxx>
62 #include <GeomAPI_PointsToBSpline.hxx>
64 #include <TColgp_SequenceOfPnt.hxx>
65 #include <TColgp_Array1OfPnt.hxx>
67 //#include <BRepTools.hxx>
70 //=======================================================================
73 //=======================================================================
74 const Standard_GUID& GEOMImpl_FillingDriver::GetID()
76 static Standard_GUID aFillingDriver ("FF1BBB62-5D14-4df2-980B-3A668264EA16");
77 return aFillingDriver;
81 //=======================================================================
82 //function : GEOMImpl_FillingDriver
84 //=======================================================================
86 GEOMImpl_FillingDriver::GEOMImpl_FillingDriver()
90 //=======================================================================
93 //=======================================================================
94 Standard_Integer GEOMImpl_FillingDriver::Execute(TFunction_Logbook& log) const
96 if (Label().IsNull()) return 0;
97 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
98 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;
105 TopoDS_Shape aShape = aShapeFunction->GetValue();
106 if (aShape.IsNull() || aShape.ShapeType() != TopAbs_COMPOUND) return 0;
108 Standard_Integer mindeg = IF.GetMinDeg();
109 Standard_Integer maxdeg = IF.GetMaxDeg();
110 Standard_Real tol3d = IF.GetTol2D();
111 Standard_Real tol2d = IF.GetTol3D();
112 Standard_Integer nbiter = IF.GetNbIter();
113 Standard_Boolean isApprox = IF.GetApprox();
114 Standard_Integer aMethod = IF.GetMethod();
116 if (mindeg > maxdeg) {
117 Standard_RangeError::Raise("Minimal degree can not be more than maximal degree");
120 /* we verify the contents of the shape */
122 TopoDS_Shape Scurrent;
123 Standard_Real First, Last;
124 Handle(Geom_Curve) C;
126 TopoDS_Compound aComp;
128 B.MakeCompound(aComp);
130 TopoDS_Iterator It (aShape);
131 for (; It.More(); It.Next()) {
132 Scurrent = It.Value();
133 if (Scurrent.ShapeType() != TopAbs_EDGE) {
134 Handle(Geom_BSplineCurve) newC;
135 if (Scurrent.ShapeType() == TopAbs_WIRE) {
136 TColgp_SequenceOfPnt PntSeq;
138 for (Ex.Init(Scurrent, TopAbs_EDGE); Ex.More(); Ex.Next()) {
139 TopoDS_Edge E = TopoDS::Edge(Ex.Current());
140 if (BRep_Tool::Degenerated(E)) continue;
141 C = BRep_Tool::Curve(E, First, Last);
142 if( E.Orientation() == TopAbs_REVERSED ) {
145 Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C);
146 while( !tc.IsNull() ) {
147 C = tc->BasisCurve();
148 tc = Handle(Geom_TrimmedCurve)::DownCast(C);
151 if( C->IsKind(STANDARD_TYPE(Geom_Line)) ) {
154 else if( C->IsKind(STANDARD_TYPE(Geom_Circle)) ||
155 C->IsKind(STANDARD_TYPE(Geom_Ellipse)) ) {
156 nbp = (int)25*fabs(Last-First)/(2*PI);
158 else if( C->IsKind(STANDARD_TYPE(Geom_BezierCurve)) ) {
159 Handle(Geom_BezierCurve) C3d = Handle(Geom_BezierCurve)::DownCast(C);
160 nbp = C3d->NbPoles();
162 else if( C->IsKind(STANDARD_TYPE(Geom_BSplineCurve)) ) {
163 Handle(Geom_BSplineCurve) C3d = Handle(Geom_BSplineCurve)::DownCast(C);
164 nbp = C3d->NbPoles();
169 double dp = (Last-First)/(nbp-1);
170 for(int i=1; i<nbp; i++) {
172 C->D0(First+dp*(i-1),P);
181 if(PntSeq.Length()>1) {
182 TColgp_Array1OfPnt Pnts(1,PntSeq.Length());
183 // check orientation of wire
184 if( Scurrent.Orientation() == TopAbs_REVERSED ) {
185 for(int i=1; i<=PntSeq.Length(); i++) {
186 Pnts.SetValue(PntSeq.Length()-i+1,PntSeq.Value(i));
190 for(int i=1; i<=PntSeq.Length(); i++) {
191 Pnts.SetValue(i,PntSeq.Value(i));
194 GeomAPI_PointsToBSpline PTB(Pnts);
195 newC = Handle(Geom_BSplineCurve)::DownCast(PTB.Curve());
196 // set periodic flag if curve is closed
197 //if( newC->IsClosed() ) {
198 // newC->SetPeriodic();
201 double fp = newC->FirstParameter();
202 double lp = newC->FirstParameter();
207 B.MakeVertex(VF,PF,1.e-7);
208 B.MakeVertex(VL,PL,1.e-7);
210 B.MakeEdge(newE,newC,1.e-7);
212 B.Add(newE,VL.Reversed());
217 Standard_ConstructionError::Raise("The argument compound must contain only edges");
220 B.Add(aComp,Scurrent);
225 // make filling as in old version of SALOME (before 4.1.1)
226 GeomFill_SectionGenerator Section;
227 Standard_Integer i = 0;
228 Handle(Geom_Curve) aLastC;
230 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
231 Scurrent = Ex.Current();
232 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
233 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
234 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
235 //if (Scurrent.Orientation() == TopAbs_REVERSED)
236 // // Mantis isuue 0020659: consider the orientation of the edges
237 // C = new Geom_TrimmedCurve(C, Last, First);
239 // C = new Geom_TrimmedCurve(C, First, Last);
240 C = new Geom_TrimmedCurve(C, First, Last);
245 if( aMethod==1 && Scurrent.Orientation() == TopAbs_REVERSED ) {
248 else if( aMethod==2 ) {
254 double d1 = PL1.Distance(P1) + PL2.Distance(P2);
255 double d2 = PL1.Distance(P2) + PL2.Distance(P1);
272 /* a 'tolerance' is used to compare 2 knots : see GeomFill_Generator.cdl */
273 Section.Perform(Precision::Confusion());
274 Handle(GeomFill_Line) Line = new GeomFill_Line(i);
276 GeomFill_AppSurf App (mindeg, maxdeg, tol3d, tol2d, nbiter); /* user parameters */
277 App.Perform(Line, Section);
279 if (!App.IsDone()) return 0;
280 Standard_Integer UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots;
281 App.SurfShape(UDegree, VDegree, NbUPoles, NbVPoles, NbUKnots, NbVKnots);
282 Handle(Geom_BSplineSurface) GBS = new Geom_BSplineSurface
283 (App.SurfPoles(), App.SurfWeights(), App.SurfUKnots(), App.SurfVKnots(),
284 App.SurfUMults(), App.SurfVMults(), App.UDegree(), App.VDegree());
286 if (GBS.IsNull()) return 0;
287 aShape = BRepBuilderAPI_MakeFace(GBS);
290 // implemented by skl 20.03.2008 for bug 16568
291 // make approximation - try to create bspline surface
292 // using GeomAPI_PointsToBSplineSurface
293 TColGeom_SequenceOfCurve aSeq;
295 // add curves from edges to sequence and find maximal
296 // number of poles if some of them are bsplines
297 for (Ex.Init(aShape, TopAbs_EDGE); Ex.More(); Ex.Next()) {
298 Scurrent = Ex.Current();
299 if (Scurrent.IsNull() || Scurrent.ShapeType() != TopAbs_EDGE) return 0;
300 if (BRep_Tool::Degenerated(TopoDS::Edge(Scurrent))) continue;
301 C = BRep_Tool::Curve(TopoDS::Edge(Scurrent), First, Last);
302 Handle(Geom_TrimmedCurve) TC = Handle(Geom_TrimmedCurve)::DownCast(C);
304 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(C);
306 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
310 Handle(Geom_BSplineCurve) BC = Handle(Geom_BSplineCurve)::DownCast(TC->BasisCurve());
312 Handle(Geom_TrimmedCurve) TC1 = Handle(Geom_TrimmedCurve)::DownCast(TC->BasisCurve());
314 BC = Handle(Geom_BSplineCurve)::DownCast(TC1->BasisCurve());
318 MaxNbPoles = Max(MaxNbPoles,BC->NbPoles());
323 // prepare array of points for creation bspline surface
324 // size of this array: by U parameter - number of curves,
325 // by V parameter - determ using MaxNbPoles but it's
326 // value must be between 21(min) and 101(max)
327 int nbc = aSeq.Length();
328 int nbp = Max(21,2*MaxNbPoles-1);
329 if(nbp>101) nbp = 101;
330 TColgp_Array2OfPnt Points(1,nbc,1,nbp);
332 for(; ic<=nbc; ic++) {
333 Handle(Geom_Curve) C = aSeq.Value(ic);
334 double fp = C->FirstParameter();
335 double lp = C->LastParameter();
336 double dp = (lp-fp)/(nbp-1);
341 Points.SetValue(ic,j+1,P);
344 GeomAPI_PointsToBSplineSurface PTB(Points,mindeg,maxdeg,GeomAbs_C2,tol3d);
345 Handle(Geom_BSplineSurface) BS = PTB.Surface();
346 BRepBuilderAPI_MakeFace BB(BS);
347 TopoDS_Face NewF = BB.Face();
348 Handle(ShapeFix_Face) sff = new ShapeFix_Face(NewF);
350 sff->FixOrientation();
351 aShape = sff->Face();
354 /* We test the validity of resulting shape */
355 if (!BRepAlgo::IsValid((aShape))) {
356 Standard_ConstructionError::Raise("Algorithm have produced an invalid shape result");
360 aFunction->SetValue(aShape);
362 log.SetTouched(Label());
367 //=======================================================================
368 //function : GEOMImpl_FillingDriver_Type_
370 //=======================================================================
371 Standard_EXPORT Handle_Standard_Type& GEOMImpl_FillingDriver_Type_()
374 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
375 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
376 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
377 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
378 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
379 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
382 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
383 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_FillingDriver",
384 sizeof(GEOMImpl_FillingDriver),
386 (Standard_Address)_Ancestors,
387 (Standard_Address)NULL);
392 //=======================================================================
393 //function : DownCast
395 //=======================================================================
397 const Handle(GEOMImpl_FillingDriver) Handle(GEOMImpl_FillingDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
399 Handle(GEOMImpl_FillingDriver) _anOtherObject;
401 if (!AnObject.IsNull()) {
402 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_FillingDriver))) {
403 _anOtherObject = Handle(GEOMImpl_FillingDriver)((Handle(GEOMImpl_FillingDriver)&)AnObject);
407 return _anOtherObject;