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 <GEOMImpl_ShapeDriver.hxx>
24 #include <GEOMImpl_IShapes.hxx>
25 #include <GEOMImpl_Types.hxx>
26 #include <GEOMImpl_Block6Explorer.hxx>
28 #include <GEOM_Function.hxx>
31 #include <ShapeFix_Wire.hxx>
32 #include <ShapeFix_Edge.hxx>
34 #include <BRep_Tool.hxx>
35 #include <BRep_Builder.hxx>
36 #include <BRepAlgo_FaceRestrictor.hxx>
37 #include <BRepBuilderAPI_Sewing.hxx>
38 #include <BRepBuilderAPI_Copy.hxx>
39 #include <BRepCheck.hxx>
40 #include <BRepCheck_Analyzer.hxx>
41 #include <BRepCheck_Shell.hxx>
42 #include <BRepClass3d_SolidClassifier.hxx>
43 #include <BRepBuilderAPI_MakeWire.hxx>
44 #include <BRepBuilderAPI_Sewing.hxx>
46 #include <ShapeAnalysis_FreeBounds.hxx>
50 #include <TopoDS_Shape.hxx>
51 #include <TopoDS_Edge.hxx>
52 #include <TopoDS_Wire.hxx>
53 #include <TopoDS_Shell.hxx>
54 #include <TopoDS_Solid.hxx>
55 #include <TopoDS_Compound.hxx>
56 #include <TopoDS_Iterator.hxx>
58 #include <TopExp_Explorer.hxx>
60 #include <TopTools_MapOfShape.hxx>
61 #include <TopTools_HSequenceOfShape.hxx>
63 #include <TColStd_HSequenceOfTransient.hxx>
65 #include <Precision.hxx>
66 #include <Standard_NullObject.hxx>
67 #include <Standard_TypeMismatch.hxx>
68 #include <Standard_ConstructionError.hxx>
70 //=======================================================================
73 //=======================================================================
74 const Standard_GUID& GEOMImpl_ShapeDriver::GetID()
76 static Standard_GUID aShapeDriver("FF1BBB54-5D14-4df2-980B-3A668264EA16");
81 //=======================================================================
82 //function : GEOMImpl_ShapeDriver
84 //=======================================================================
85 GEOMImpl_ShapeDriver::GEOMImpl_ShapeDriver()
89 //=======================================================================
92 //=======================================================================
93 Standard_Integer GEOMImpl_ShapeDriver::Execute(TFunction_Logbook& log) const
95 if (Label().IsNull()) return 0;
96 Handle(GEOM_Function) aFunction = GEOM_Function::GetFunction(Label());
98 GEOMImpl_IShapes aCI (aFunction);
99 Standard_Integer aType = aFunction->GetType();
104 if (aType == WIRE_EDGES) {
105 Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
110 for (unsigned int ind = 1; ind <= aShapes->Length(); ind++) {
111 Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
112 TopoDS_Shape aShape_i = aRefShape->GetValue();
113 if (aShape_i.IsNull()) {
114 Standard_NullObject::Raise("Shape for wire construction is null");
116 if (aShape_i.ShapeType() == TopAbs_EDGE || aShape_i.ShapeType() == TopAbs_WIRE) {
117 TopExp_Explorer exp (aShape_i, TopAbs_EDGE);
118 for (; exp.More(); exp.Next())
119 B.Add(aWire, TopoDS::Edge(exp.Current()));
121 Standard_TypeMismatch::Raise
122 ("Shape for wire construction is neither an edge nor a wire");
127 Handle(ShapeFix_Wire) aFW = new ShapeFix_Wire;
131 if (aFW->StatusReorder(ShapeExtend_FAIL1)) {
132 Standard_ConstructionError::Raise("Wire construction failed: several loops detected");
133 } else if (aFW->StatusReorder(ShapeExtend_FAIL)) {
134 Standard_ConstructionError::Raise("Wire construction failed");
138 // IMP 0019766: Building a Wire from unconnected edges by introducing a tolerance
139 Standard_Real aTolerance = aCI.GetTolerance();
140 if (aTolerance < Precision::Confusion())
141 aTolerance = Precision::Confusion();
143 aFW->ClosedWireMode() = Standard_False;
144 aFW->FixConnected(aTolerance);
145 if (aFW->StatusConnected(ShapeExtend_FAIL)) {
146 Standard_ConstructionError::Raise("Wire construction failed: cannot build connected wire");
149 if (aFW->StatusConnected(ShapeExtend_DONE3)) {
150 // Confused with <prec> but not Analyzer.Precision(), set the same
151 aFW->FixGapsByRangesMode() = Standard_True;
152 if (aFW->FixGaps3d()) {
153 Handle(ShapeExtend_WireData) sbwd = aFW->WireData();
154 Handle(ShapeFix_Edge) aFe = new ShapeFix_Edge;
155 for (Standard_Integer iedge = 1; iedge <= sbwd->NbEdges(); iedge++) {
156 TopoDS_Edge aEdge = TopoDS::Edge(sbwd->Edge(iedge));
157 aFe->FixVertexTolerance(aEdge);
158 aFe->FixSameParameter(aEdge);
161 else if (aFW->StatusGaps3d(ShapeExtend_FAIL)) {
162 Standard_ConstructionError::Raise("Wire construction failed: cannot fix 3d gaps");
165 aShape = aFW->WireAPIMake();
167 else if (aType == FACE_WIRE) {
168 Handle(GEOM_Function) aRefBase = aCI.GetBase();
169 TopoDS_Shape aShapeBase = aRefBase->GetValue();
170 if (aShapeBase.IsNull()) Standard_NullObject::Raise("Argument Shape is null");
172 if (aShapeBase.ShapeType() == TopAbs_WIRE) {
173 W = TopoDS::Wire(aShapeBase);
174 // check the wire is closed
175 TopoDS_Vertex aV1, aV2;
176 TopExp::Vertices(W, aV1, aV2);
177 if ( !aV1.IsNull() && !aV2.IsNull() && aV1.IsSame(aV2) )
178 aShapeBase.Closed(true);
180 Standard_NullObject::Raise
181 ("Shape for face construction is not closed");
183 else if (aShapeBase.ShapeType() == TopAbs_EDGE && aShapeBase.Closed()) {
184 BRepBuilderAPI_MakeWire MW;
185 MW.Add(TopoDS::Edge(aShapeBase));
187 Standard_ConstructionError::Raise("Wire construction failed");
192 Standard_NullObject::Raise
193 ("Shape for face construction is neither a wire nor a closed edge");
195 GEOMImpl_Block6Explorer::MakeFace(W, aCI.GetIsPlanar(), aShape);
196 if (aShape.IsNull()) {
197 Standard_ConstructionError::Raise("Face construction failed");
200 else if (aType == FACE_WIRES) {
201 // Try to build a face from a set of wires and edges
204 Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
205 int nbshapes = aShapes->Length();
207 Standard_ConstructionError::Raise("No wires or edges given");
210 // 1. Extract all edges from the given arguments
211 TopTools_MapOfShape aMapEdges;
212 Handle(TopTools_HSequenceOfShape) aSeqEdgesIn = new TopTools_HSequenceOfShape;
214 for (ind = 1; ind <= nbshapes; ind++) {
215 Handle(GEOM_Function) aRefSh_i = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
216 TopoDS_Shape aSh_i = aRefSh_i->GetValue();
218 TopExp_Explorer anExpE_i (aSh_i, TopAbs_EDGE);
219 for (; anExpE_i.More(); anExpE_i.Next()) {
220 if (aMapEdges.Add(anExpE_i.Current())) {
221 aSeqEdgesIn->Append(anExpE_i.Current());
226 // 2. Connect edges to wires of maximum length
227 Handle(TopTools_HSequenceOfShape) aSeqWiresOut;
228 ShapeAnalysis_FreeBounds::ConnectEdgesToWires(aSeqEdgesIn, Precision::Confusion(),
229 /*shared*/Standard_False, aSeqWiresOut);
231 // 3. Separate closed wires
232 Handle(TopTools_HSequenceOfShape) aSeqClosedWires = new TopTools_HSequenceOfShape;
233 Handle(TopTools_HSequenceOfShape) aSeqOpenWires = new TopTools_HSequenceOfShape;
234 for (ind = 1; ind <= aSeqWiresOut->Length(); ind++) {
235 if (aSeqWiresOut->Value(ind).Closed())
236 aSeqClosedWires->Append(aSeqWiresOut->Value(ind));
238 aSeqOpenWires->Append(aSeqWiresOut->Value(ind));
241 if (aSeqClosedWires->Length() < 1) {
242 Standard_ConstructionError::Raise
243 ("There is no closed contour can be built from the given arguments");
246 // 4. Build a face / list of faces from all the obtained closed wires
250 TopoDS_Wire aW1 = TopoDS::Wire(aSeqClosedWires->Value(1));
251 GEOMImpl_Block6Explorer::MakeFace(aW1, aCI.GetIsPlanar(), aFFace);
252 if (aFFace.IsNull()) {
253 Standard_ConstructionError::Raise("Face construction failed");
256 // 4.b. Add other wires
257 if (aSeqClosedWires->Length() == 1) {
262 BRep_Builder aBuilder;
263 aBuilder.MakeCompound(C);
264 BRepAlgo_FaceRestrictor FR;
266 TopAbs_Orientation OriF = aFFace.Orientation();
267 TopoDS_Shape aLocalS = aFFace.Oriented(TopAbs_FORWARD);
268 FR.Init(TopoDS::Face(aLocalS), Standard_False, Standard_True);
270 for (ind = 1; ind <= aSeqClosedWires->Length(); ind++) {
271 TopoDS_Wire aW = TopoDS::Wire(aSeqClosedWires->Value(ind));
280 for (; FR.More(); FR.Next()) {
281 aFace = FR.Current().Oriented(OriF);
282 aBuilder.Add(C, aFace);
293 // 5. Add all open wires to the result
294 if (aSeqOpenWires->Length() > 0) {
295 //Standard_ConstructionError::Raise("There are some open wires");
297 BRep_Builder aBuilder;
298 if (aSeqClosedWires->Length() == 1) {
299 aBuilder.MakeCompound(C);
300 aBuilder.Add(C, aShape);
303 C = TopoDS::Compound(aShape);
306 for (ind = 1; ind <= aSeqOpenWires->Length(); ind++) {
307 aBuilder.Add(C, aSeqOpenWires->Value(ind));
313 else if (aType == SHELL_FACES) {
314 Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
315 unsigned int ind, nbshapes = aShapes->Length();
318 BRepBuilderAPI_Sewing aSewing(Precision::Confusion()*10.0);
319 for (ind = 1; ind <= nbshapes; ind++) {
320 Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
321 TopoDS_Shape aShape_i = aRefShape->GetValue();
322 if (aShape_i.IsNull()) {
323 Standard_NullObject::Raise("Face for shell construction is null");
325 aSewing.Add(aShape_i);
330 TopoDS_Shape sh = aSewing.SewedShape();
331 if( sh.ShapeType()==TopAbs_FACE && nbshapes==1 ) {
332 // case for creation of shell from one face - PAL12722 (skl 26.06.2006)
339 //TopExp_Explorer exp (aSewing.SewedShape(), TopAbs_SHELL);
340 TopExp_Explorer exp (sh, TopAbs_SHELL);
341 Standard_Integer ish = 0;
342 for (; exp.More(); exp.Next()) {
343 aShape = exp.Current();
348 aShape = aSewing.SewedShape();
352 else if (aType == SOLID_SHELL) {
353 Handle(GEOM_Function) aRefShell = aCI.GetBase();
354 TopoDS_Shape aShapeShell = aRefShell->GetValue();
355 if (aShapeShell.IsNull() || aShapeShell.ShapeType() != TopAbs_SHELL) {
356 Standard_NullObject::Raise("Shape for solid construction is null or not a shell");
359 BRepCheck_Shell chkShell(TopoDS::Shell(aShapeShell));
360 if(chkShell.Closed() == BRepCheck_NotClosed) return 0;
364 B.Add(Sol, aShapeShell);
365 BRepClass3d_SolidClassifier SC (Sol);
366 SC.PerformInfinitePoint(Precision::Confusion());
367 if (SC.State() == TopAbs_IN) {
369 B.Add(Sol, aShapeShell.Reversed());
375 else if (aType == SOLID_SHELLS) {
376 Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
377 unsigned int ind, nbshapes = aShapes->Length();
378 Standard_Integer ish = 0;
383 for (ind = 1; ind <= nbshapes; ind++) {
384 Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
385 TopoDS_Shape aShapeShell = aRefShape->GetValue();
386 if (aShapeShell.IsNull()) {
387 Standard_NullObject::Raise("Shell for solid construction is null");
389 if (aShapeShell.ShapeType() == TopAbs_SHELL) {
390 B.Add(Sol, aShapeShell);
394 if ( ish == 0 ) return 0;
395 BRepClass3d_SolidClassifier SC (Sol);
396 SC.PerformInfinitePoint(Precision::Confusion());
397 if (SC.State() == TopAbs_IN)
398 aShape = Sol.Reversed();
402 else if (aType == COMPOUND_SHAPES) {
403 Handle(TColStd_HSequenceOfTransient) aShapes = aCI.GetShapes();
404 unsigned int ind, nbshapes = aShapes->Length();
409 for (ind = 1; ind <= nbshapes; ind++) {
410 Handle(GEOM_Function) aRefShape = Handle(GEOM_Function)::DownCast(aShapes->Value(ind));
411 TopoDS_Shape aShape_i = aRefShape->GetValue();
412 if (aShape_i.IsNull()) {
413 Standard_NullObject::Raise("Shape for compound construction is null");
421 else if (aType == REVERSE_ORIENTATION) {
422 Handle(GEOM_Function) aRefShape = aCI.GetBase();
423 TopoDS_Shape aShape_i = aRefShape->GetValue();
424 if (aShape_i.IsNull()) {
425 Standard_NullObject::Raise("Shape for reverse is null");
428 BRepBuilderAPI_Copy Copy(aShape_i);
429 if( Copy.IsDone() ) {
430 TopoDS_Shape tds = Copy.Shape();
432 Standard_ConstructionError::Raise("Orientation aborted : Can not reverse the shape");
435 if( tds.Orientation() == TopAbs_FORWARD)
436 tds.Orientation(TopAbs_REVERSED);
438 tds.Orientation(TopAbs_FORWARD);
444 if (aShape.IsNull()) return 0;
446 // Check shape validity
447 BRepCheck_Analyzer ana (aShape, false);
448 if (!ana.IsValid()) {
449 //Standard_ConstructionError::Raise("Algorithm have produced an invalid shape result");
452 aFunction->SetValue(aShape);
454 log.SetTouched(Label());
460 //=======================================================================
461 //function : GEOMImpl_ShapeDriver_Type_
463 //=======================================================================
464 Standard_EXPORT Handle_Standard_Type& GEOMImpl_ShapeDriver_Type_()
467 static Handle_Standard_Type aType1 = STANDARD_TYPE(TFunction_Driver);
468 if ( aType1.IsNull()) aType1 = STANDARD_TYPE(TFunction_Driver);
469 static Handle_Standard_Type aType2 = STANDARD_TYPE(MMgt_TShared);
470 if ( aType2.IsNull()) aType2 = STANDARD_TYPE(MMgt_TShared);
471 static Handle_Standard_Type aType3 = STANDARD_TYPE(Standard_Transient);
472 if ( aType3.IsNull()) aType3 = STANDARD_TYPE(Standard_Transient);
475 static Handle_Standard_Transient _Ancestors[]= {aType1,aType2,aType3,NULL};
476 static Handle_Standard_Type _aType = new Standard_Type("GEOMImpl_ShapeDriver",
477 sizeof(GEOMImpl_ShapeDriver),
479 (Standard_Address)_Ancestors,
480 (Standard_Address)NULL);
485 //=======================================================================
486 //function : DownCast
488 //=======================================================================
489 const Handle(GEOMImpl_ShapeDriver) Handle(GEOMImpl_ShapeDriver)::DownCast(const Handle(Standard_Transient)& AnObject)
491 Handle(GEOMImpl_ShapeDriver) _anOtherObject;
493 if (!AnObject.IsNull()) {
494 if (AnObject->IsKind(STANDARD_TYPE(GEOMImpl_ShapeDriver))) {
495 _anOtherObject = Handle(GEOMImpl_ShapeDriver)((Handle(GEOMImpl_ShapeDriver)&)AnObject);
499 return _anOtherObject;