src/STEPImport/STEPImport.cxx

   1 // Copyright (C) 2007-2011  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   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.
  10 //
  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.
  15 //
  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
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21
  22 //  File:        STEPImport.cxx
  23 //  Created:     Wed May 19 14:41:10 2004
  24 //  Author:      Pavel TELKOV
  25
  26 #include "utilities.h"
  27
  28 #include <Basics_Utils.hxx>
  29
  30 #include <CASCatch_OCCTVersion.hxx>
  31
  32 #include <BRep_Builder.hxx>
  33
  34 #include <IFSelect_ReturnStatus.hxx>
  35
  36 #include <STEPControl_Reader.hxx>
  37 #include <StepBasic_ProductDefinition.hxx>
  38 #include <StepBasic_ProductDefinitionFormation.hxx>
  39 #include <StepBasic_Product.hxx>
  40 #include <Interface_InterfaceModel.hxx>
  41 #include <XSControl_TransferReader.hxx>
  42 #include <XSControl_WorkSession.hxx>
  43
  44 #include <Transfer_Binder.hxx>
  45 #include <TNaming_Builder.hxx>
  46 #include <TDataStd_Name.hxx>
  47 #include <Transfer_TransientProcess.hxx>
  48 #include <TransferBRep.hxx>
  49
  50 #include <TCollection_AsciiString.hxx>
  51 #include <TopoDS_Compound.hxx>
  52 #include <TopoDS_Shape.hxx>
  53 #include <TDF_Label.hxx>
  54 #include <TDF_Tool.hxx>
  55 #include <Interface_Static.hxx>
  56
  57 #include <TopTools_IndexedMapOfShape.hxx>
  58 #include <TopExp.hxx>
  59 #include <TopoDS_Iterator.hxx>
  60 #include <BRepTools.hxx>
  61
  62 #include <Standard_Failure.hxx>
  63 #include <Standard_ErrorHandler.hxx> // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC
  64
  65 #ifdef WNT
  66  #if defined STEPIMPORT_EXPORTS || defined STEPImport_EXPORTS
  67   #if defined WIN32
  68    #define STEPIMPORT_EXPORT __declspec( dllexport )
  69   #else
  70    #define STEPIMPORT_EXPORT
  71   #endif
  72  #else
  73   #if defined WIN32
  74    #define STEPIMPORT_EXPORT __declspec( dllimport )
  75   #else
  76    #define STEPIMPORT_EXPORT
  77   #endif
  78  #endif
  79 #else
  80  #define STEPIMPORT_EXPORT
  81 #endif
  82
  83 //=============================================================================
  84 /*!
  85  *  Import()
  86  */
  87 //=============================================================================
  88
  89 extern "C"
  90 {
  91   STEPIMPORT_EXPORT
  92   TopoDS_Shape Import (const TCollection_AsciiString& theFileName,
  93                        const TCollection_AsciiString& /*theFormatName*/,
  94                        TCollection_AsciiString&       theError,
  95                        const TDF_Label&               theShapeLabel)
  96   {
  97     MESSAGE("Import STEP model from file " << theFileName.ToCString());
  98     // Set "C" numeric locale to save numbers correctly
  99     Kernel_Utils::Localizer loc;
 100     TopoDS_Shape aResShape;
 101     //VRV: OCC 4.0 migration
 102     STEPControl_Reader aReader;
 103     //VSR: 16/09/09: Convert to METERS
 104     Interface_Static::SetCVal("xstep.cascade.unit","M");
 105     Interface_Static::SetIVal("read.step.ideas", 1);
 106     Interface_Static::SetIVal("read.step.nonmanifold", 1);
 107     //VRV: OCC 4.0 migration
 108     TopoDS_Compound compound;
 109     BRep_Builder B;
 110     B.MakeCompound(compound);
 111     try {
 112 #if OCC_VERSION_LARGE > 0x06010000
 113       OCC_CATCH_SIGNALS;
 114 #endif
 115       IFSelect_ReturnStatus status = aReader.ReadFile(theFileName.ToCString());
 116
 117       if (status == IFSelect_RetDone) {
 118         Standard_Boolean failsonly = Standard_False;
 119         aReader.PrintCheckLoad(failsonly, IFSelect_ItemsByEntity);
 120         /* Root transfers */
 121         Standard_Integer nbr = aReader.NbRootsForTransfer();
 122         aReader.PrintCheckTransfer(failsonly, IFSelect_ItemsByEntity);
 123
 124         for (Standard_Integer n = 1; n <= nbr; n++) {
 125           Standard_Boolean ok = aReader.TransferRoot(n);
 126           /* Collecting resulting entities */
 127           Standard_Integer nbs = aReader.NbShapes();
 128           if (!ok || nbs == 0)
 129           {
 130             // THROW_SALOME_CORBA_EXCEPTION("Exception catched in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM);
 131             continue; // skip empty root
 132           }
 133           /* For a single entity */
 134           else if (nbr == 1 && nbs == 1) {
 135             aResShape = aReader.Shape(1);
 136             // ATTENTION: this is a workaround for mantis issue 0020442 remark 0010776
 137             // It should be removed after patching OCCT for bug OCC22436
 138             // (fix for OCCT is expected in service pack next to OCCT6.3sp12)
 139             if (aResShape.ShapeType() == TopAbs_COMPOUND) {
 140               int nbSub1 = 0;
 141               TopoDS_Shape currShape;
 142               TopoDS_Iterator It (aResShape, Standard_True, Standard_True);
 143               for (; It.More(); It.Next()) {
 144                 nbSub1++;
 145                 currShape = It.Value();
 146               }
 147               if (nbSub1 == 1)
 148                 aResShape = currShape;
 149             }
 150             // END workaround
 151             break;
 152           }
 153
 154           for (Standard_Integer i = 1; i <= nbs; i++) {
 155             TopoDS_Shape aShape = aReader.Shape(i);
 156             if (aShape.IsNull()) {
 157               // THROW_SALOME_CORBA_EXCEPTION("Null shape in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM) ;
 158               //return aResShape;
 159               continue;
 160             }
 161             else {
 162               B.Add(compound, aShape);
 163             }
 164           }
 165         }
 166         if (aResShape.IsNull())
 167           aResShape = compound;
 168
 169         // BEGIN: Store names of sub-shapes from file
 170         TopTools_IndexedMapOfShape anIndices;
 171         TopExp::MapShapes(aResShape, anIndices);
 172
 173         Handle(Interface_InterfaceModel) Model = aReader.WS()->Model();
 174         Handle(XSControl_TransferReader) TR = aReader.WS()->TransferReader();
 175         if (!TR.IsNull()) {
 176           Handle(Transfer_TransientProcess) TP = TR->TransientProcess();
 177           Handle(Standard_Type) tPD  = STANDARD_TYPE(StepBasic_ProductDefinition);
 178
 179           Standard_Integer nb = Model->NbEntities();
 180           for (Standard_Integer ie = 1; ie <= nb; ie++) {
 181             Handle(Standard_Transient) enti = Model->Value(ie);
 182             if (enti->DynamicType() != tPD) continue;
 183
 184             Handle(StepBasic_ProductDefinition) PD =
 185               Handle(StepBasic_ProductDefinition)::DownCast(enti);
 186             if (PD.IsNull()) continue;
 187
 188             Handle(StepBasic_Product) Prod = PD->Formation()->OfProduct();
 189             if (Prod->Name()->UsefullLength() <= 0) continue;
 190
 191             Handle(TCollection_HAsciiString) aName = Prod->Name();
 192             TCollection_ExtendedString aNameExt (aName->ToCString());
 193
 194             // special check to pass names like "Open CASCADE STEP translator 6.3 1"
 195             TCollection_AsciiString aSkipName ("Open CASCADE STEP translator");
 196             if (aName->Length() >= aSkipName.Length()) {
 197               if (aName->String().SubString(1, aSkipName.Length()).IsEqual(aSkipName))
 198                 continue;
 199             }
 200
 201             // find target shape
 202             Handle(Transfer_Binder) binder = TP->Find(enti);
 203             if (binder.IsNull()) continue;
 204             TopoDS_Shape S = TransferBRep::ShapeResult(binder);
 205             if (S.IsNull()) continue;
 206
 207             // as PRODUCT can be included in the main shape
 208             // several times, we look here for all iclusions.
 209             Standard_Integer isub, nbSubs = anIndices.Extent();
 210             for (isub = 1; isub <= nbSubs; isub++)
 211             {
 212               TopoDS_Shape aSub = anIndices.FindKey(isub);
 213               if (aSub.IsPartner(S)) {
 214                 // create label and set shape
 215                 TDF_Label L;
 216                 TDF_TagSource aTag;
 217                 L = aTag.NewChild(theShapeLabel);
 218                 TNaming_Builder tnBuild (L);
 219                 //tnBuild.Generated(S);
 220                 tnBuild.Generated(aSub);
 221
 222                 // set a name
 223                 TDataStd_Name::Set(L, aNameExt);
 224               }
 225             }
 226           }
 227         }
 228         // END: Store names
 229       }
 230       else {
 231 //        switch (status) {
 232 //        case IFSelect_RetVoid:
 233 //          theError = "Nothing created or No data to process";
 234 //          break;
 235 //        case IFSelect_RetError:
 236 //          theError = "Error in command or input data";
 237 //          break;
 238 //        case IFSelect_RetFail:
 239 //          theError = "Execution was run, but has failed";
 240 //          break;
 241 //        case IFSelect_RetStop:
 242 //          theError = "Execution has been stopped. Quite possible, an exception was raised";
 243 //          break;
 244 //        default:
 245 //          break;
 246 //        }
 247         theError = "Wrong format of the imported file. Can't import file.";
 248         aResShape.Nullify();
 249       }
 250     }
 251     catch (Standard_Failure) {
 252       Handle(Standard_Failure) aFail = Standard_Failure::Caught();
 253       theError = aFail->GetMessageString();
 254       aResShape.Nullify();
 255     }
 256     // Return previous locale
 257     return aResShape;
 258   }
 259 }