// Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE // // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS // // This library is free software; you can redistribute it and/or // modify it under the terms of the GNU Lesser General Public // License as published by the Free Software Foundation; either // version 2.1 of the License. // // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU // Lesser General Public License for more details. // // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com // // File: STEPImport.cxx // Created: Wed May 19 14:41:10 2004 // Author: Pavel TELKOV #include "utilities.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC #ifdef WNT #if defined STEPIMPORT_EXPORTS || defined STEPImport_EXPORTS #if defined WIN32 #define STEPIMPORT_EXPORT __declspec( dllexport ) #else #define STEPIMPORT_EXPORT #endif #else #if defined WIN32 #define STEPIMPORT_EXPORT __declspec( dllimport ) #else #define STEPIMPORT_EXPORT #endif #endif #else #define STEPIMPORT_EXPORT #endif //============================================================================= /*! * Import() */ //============================================================================= extern "C" { STEPIMPORT_EXPORT TopoDS_Shape Import (const TCollection_AsciiString& theFileName, const TCollection_AsciiString& /*theFormatName*/, TCollection_AsciiString& theError, const TDF_Label& theShapeLabel) { MESSAGE("Import STEP model from file " << theFileName.ToCString()); // Set "C" numeric locale to save numbers correctly Kernel_Utils::Localizer loc; TopoDS_Shape aResShape; //VRV: OCC 4.0 migration STEPControl_Reader aReader; //VSR: 16/09/09: Convert to METERS Interface_Static::SetCVal("xstep.cascade.unit","M"); Interface_Static::SetIVal("read.step.ideas", 1); Interface_Static::SetIVal("read.step.nonmanifold", 1); //VRV: OCC 4.0 migration TopoDS_Compound compound; BRep_Builder B; B.MakeCompound(compound); try { #if OCC_VERSION_LARGE > 0x06010000 OCC_CATCH_SIGNALS; #endif IFSelect_ReturnStatus status = aReader.ReadFile(theFileName.ToCString()); if (status == IFSelect_RetDone) { Standard_Boolean failsonly = Standard_False; aReader.PrintCheckLoad(failsonly, IFSelect_ItemsByEntity); /* Root transfers */ Standard_Integer nbr = aReader.NbRootsForTransfer(); aReader.PrintCheckTransfer(failsonly, IFSelect_ItemsByEntity); for (Standard_Integer n = 1; n <= nbr; n++) { Standard_Boolean ok = aReader.TransferRoot(n); /* Collecting resulting entities */ Standard_Integer nbs = aReader.NbShapes(); if (!ok || nbs == 0) { // THROW_SALOME_CORBA_EXCEPTION("Exception catched in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM); continue; // skip empty root } /* For a single entity */ else if (nbr == 1 && nbs == 1) { aResShape = aReader.Shape(1); // ATTENTION: this is a workaround for mantis issue 0020442 remark 0010776 // It should be removed after patching OCCT for bug OCC22436 // (fix for OCCT is expected in service pack next to OCCT6.3sp12) if (aResShape.ShapeType() == TopAbs_COMPOUND) { int nbSub1 = 0; TopoDS_Shape currShape; TopoDS_Iterator It (aResShape, Standard_True, Standard_True); for (; It.More(); It.Next()) { nbSub1++; currShape = It.Value(); } if (nbSub1 == 1) aResShape = currShape; } // END workaround break; } for (Standard_Integer i = 1; i <= nbs; i++) { TopoDS_Shape aShape = aReader.Shape(i); if (aShape.IsNull()) { // THROW_SALOME_CORBA_EXCEPTION("Null shape in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM) ; //return aResShape; continue; } else { B.Add(compound, aShape); } } } if (aResShape.IsNull()) aResShape = compound; // Check if any BRep entity has been read, there must be at least a vertex if ( !TopExp_Explorer( aResShape, TopAbs_VERTEX ).More() ) { theError = "No geometrical data in the imported file."; return TopoDS_Shape(); } // BEGIN: Store names of sub-shapes from file TopTools_IndexedMapOfShape anIndices; TopExp::MapShapes(aResShape, anIndices); Handle(Interface_InterfaceModel) Model = aReader.WS()->Model(); Handle(XSControl_TransferReader) TR = aReader.WS()->TransferReader(); if (!TR.IsNull()) { Handle(Transfer_TransientProcess) TP = TR->TransientProcess(); Handle(Standard_Type) tPD = STANDARD_TYPE(StepBasic_ProductDefinition); Handle(Standard_Type) tShape = STANDARD_TYPE(StepShape_TopologicalRepresentationItem); Handle(Standard_Type) tGeom = STANDARD_TYPE(StepGeom_GeometricRepresentationItem); Standard_Integer nb = Model->NbEntities(); for (Standard_Integer ie = 1; ie <= nb; ie++) { Handle(Standard_Transient) enti = Model->Value(ie); Handle(TCollection_HAsciiString) aName; if ( enti->IsKind( tShape ) || enti->IsKind(tGeom)) { aName = Handle(StepRepr_RepresentationItem)::DownCast(enti)->Name(); } else if (enti->DynamicType() == tPD) { Handle(StepBasic_ProductDefinition) PD = Handle(StepBasic_ProductDefinition)::DownCast(enti); if (PD.IsNull()) continue; Handle(StepBasic_Product) Prod = PD->Formation()->OfProduct(); aName = Prod->Name(); } else { continue; } if ( aName->UsefullLength() < 1 ) continue; // skip 'N0NE' name if ( aName->UsefullLength() == 4 && toupper (aName->Value(1)) == 'N' && toupper (aName->Value(2)) == 'O' && toupper (aName->Value(3)) == 'N' && toupper (aName->Value(4)) == 'E') continue; // special check to pass names like "Open CASCADE STEP translator 6.3 1" TCollection_AsciiString aSkipName ("Open CASCADE STEP translator"); if (aName->Length() >= aSkipName.Length()) { if (aName->String().SubString(1, aSkipName.Length()).IsEqual(aSkipName)) continue; } TCollection_ExtendedString aNameExt (aName->ToCString()); // find target shape Handle(Transfer_Binder) binder = TP->Find(enti); if (binder.IsNull()) continue; TopoDS_Shape S = TransferBRep::ShapeResult(binder); if (S.IsNull()) continue; // as PRODUCT can be included in the main shape // several times, we look here for all iclusions. Standard_Integer isub, nbSubs = anIndices.Extent(); for (isub = 1; isub <= nbSubs; isub++) { TopoDS_Shape aSub = anIndices.FindKey(isub); if (aSub.IsPartner(S)) { TDF_Label L; if (enti->IsKind(tGeom)) { // check all named shapes using iterator TDF_ChildIDIterator anIt (theShapeLabel, TDataStd_Name::GetID(), Standard_True); for (; anIt.More(); anIt.Next()) { Handle(TDataStd_Name) nameAttr = Handle(TDataStd_Name)::DownCast(anIt.Value()); if (nameAttr.IsNull()) continue; TDF_Label Lab = nameAttr->Label(); Handle(TNaming_NamedShape) shAttr; if (Lab.FindAttribute(TNaming_NamedShape::GetID(), shAttr) && shAttr->Get().IsEqual(aSub)) L = Lab; } } // create label and set shape if (L.IsNull()) { TDF_TagSource aTag; L = aTag.NewChild(theShapeLabel); TNaming_Builder tnBuild (L); //tnBuild.Generated(S); tnBuild.Generated(aSub); } // set a name TDataStd_Name::Set(L, aNameExt); } } } } // END: Store names } else { // switch (status) { // case IFSelect_RetVoid: // theError = "Nothing created or No data to process"; // break; // case IFSelect_RetError: // theError = "Error in command or input data"; // break; // case IFSelect_RetFail: // theError = "Execution was run, but has failed"; // break; // case IFSelect_RetStop: // theError = "Execution has been stopped. Quite possible, an exception was raised"; // break; // default: // break; // } theError = "Wrong format of the imported file. Can't import file."; aResShape.Nullify(); } } catch (Standard_Failure) { Handle(Standard_Failure) aFail = Standard_Failure::Caught(); theError = aFail->GetMessageString(); aResShape.Nullify(); } // Return previous locale return aResShape; } }