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 <BRep_Builder.hxx>
  31
  32 #include <IFSelect_ReturnStatus.hxx>
  33
  34 #include <STEPControl_Reader.hxx>
  35 #include <StepBasic_ProductDefinition.hxx>
  36 #include <StepBasic_ProductDefinitionFormation.hxx>
  37 #include <StepBasic_Product.hxx>
  38 #include <Interface_InterfaceModel.hxx>
  39 #include <XSControl_TransferReader.hxx>
  40 #include <XSControl_WorkSession.hxx>
  41
  42 #include <Transfer_Binder.hxx>
  43 #include <TNaming_Builder.hxx>
  44 #include <TDataStd_Name.hxx>
  45 #include <Transfer_TransientProcess.hxx>
  46 #include <TransferBRep.hxx>
  47
  48 #include <TCollection_AsciiString.hxx>
  49 #include <TopoDS_Compound.hxx>
  50 #include <TopoDS_Shape.hxx>
  51 #include <TDF_Label.hxx>
  52 #include <TDF_Tool.hxx>
  53 #include <Interface_Static.hxx>
  54
  55 #include <TopTools_IndexedMapOfShape.hxx>
  56 #include <TopExp.hxx>
  57 #include <TopoDS_Iterator.hxx>
  58 #include <BRepTools.hxx>
  59
  60 #include <Standard_Failure.hxx>
  61 #include <Standard_ErrorHandler.hxx> // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC
  62
  63 #ifdef WNT
  64  #if defined STEPIMPORT_EXPORTS || defined STEPImport_EXPORTS
  65   #if defined WIN32
  66    #define STEPIMPORT_EXPORT __declspec( dllexport )
  67   #else
  68    #define STEPIMPORT_EXPORT
  69   #endif
  70  #else
  71   #if defined WIN32
  72    #define STEPIMPORT_EXPORT __declspec( dllimport )
  73   #else
  74    #define STEPIMPORT_EXPORT
  75   #endif
  76  #endif
  77 #else
  78  #define STEPIMPORT_EXPORT
  79 #endif
  80
  81 //=============================================================================
  82 /*!
  83  *  Import()
  84  */
  85 //=============================================================================
  86
  87 extern "C"
  88 {
  89   STEPIMPORT_EXPORT
  90   TopoDS_Shape Import (const TCollection_AsciiString& theFileName,
  91                        const TCollection_AsciiString& /*theFormatName*/,
  92                        TCollection_AsciiString&       theError,
  93                        const TDF_Label&               theShapeLabel)
  94   {
  95     MESSAGE("Import STEP model from file " << theFileName.ToCString());
  96     // Set "C" numeric locale to save numbers correctly
  97     Kernel_Utils::Localizer loc;
  98     TopoDS_Shape aResShape;
  99     //VRV: OCC 4.0 migration
 100     STEPControl_Reader aReader;
 101     //VSR: 16/09/09: Convert to METERS
 102     Interface_Static::SetCVal("xstep.cascade.unit","M");
 103     Interface_Static::SetIVal("read.step.ideas", 1);
 104     Interface_Static::SetIVal("read.step.nonmanifold", 1);
 105     //VRV: OCC 4.0 migration
 106     TopoDS_Compound compound;
 107     BRep_Builder B;
 108     B.MakeCompound(compound);
 109     try {
 110 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
 111       OCC_CATCH_SIGNALS;
 112 #endif
 113       IFSelect_ReturnStatus status = aReader.ReadFile(theFileName.ToCString());
 114
 115       if (status == IFSelect_RetDone) {
 116         Standard_Boolean failsonly = Standard_False;
 117         aReader.PrintCheckLoad(failsonly, IFSelect_ItemsByEntity);
 118         /* Root transfers */
 119         Standard_Integer nbr = aReader.NbRootsForTransfer();
 120         aReader.PrintCheckTransfer(failsonly, IFSelect_ItemsByEntity);
 121
 122         for (Standard_Integer n = 1; n <= nbr; n++) {
 123           Standard_Boolean ok = aReader.TransferRoot(n);
 124           /* Collecting resulting entities */
 125           Standard_Integer nbs = aReader.NbShapes();
 126           if (!ok || nbs == 0)
 127           {
 128             // THROW_SALOME_CORBA_EXCEPTION("Exception catched in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM);
 129             continue; // skip empty root
 130           }
 131           /* For a single entity */
 132           else if (nbr == 1 && nbs == 1) {
 133             aResShape = aReader.Shape(1);
 134             // ATTENTION: this is a workaround for mantis issue 0020442 remark 0010776
 135             // It should be removed after patching OCCT for bug OCC22436
 136             // (fix for OCCT is expected in service pack next to OCCT6.3sp12)
 137             if (aResShape.ShapeType() == TopAbs_COMPOUND) {
 138               int nbSub1 = 0;
 139               TopoDS_Shape currShape;
 140               TopoDS_Iterator It (aResShape, Standard_True, Standard_True);
 141               for (; It.More(); It.Next()) {
 142                 nbSub1++;
 143                 currShape = It.Value();
 144               }
 145               if (nbSub1 == 1)
 146                 aResShape = currShape;
 147             }
 148             // END workaround
 149             break;
 150           }
 151
 152           for (Standard_Integer i = 1; i <= nbs; i++) {
 153             TopoDS_Shape aShape = aReader.Shape(i);
 154             if (aShape.IsNull()) {
 155               // THROW_SALOME_CORBA_EXCEPTION("Null shape in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM) ;
 156               //return aResShape;
 157               continue;
 158             }
 159             else {
 160               B.Add(compound, aShape);
 161             }
 162           }
 163         }
 164         if (aResShape.IsNull())
 165           aResShape = compound;
 166
 167         // BEGIN: Store names of sub-shapes from file
 168         TopTools_IndexedMapOfShape anIndices;
 169         TopExp::MapShapes(aResShape, anIndices);
 170
 171         Handle(Interface_InterfaceModel) Model = aReader.WS()->Model();
 172         Handle(XSControl_TransferReader) TR = aReader.WS()->TransferReader();
 173         if (!TR.IsNull()) {
 174           Handle(Transfer_TransientProcess) TP = TR->TransientProcess();
 175           Handle(Standard_Type) tPD  = STANDARD_TYPE(StepBasic_ProductDefinition);
 176
 177           Standard_Integer nb = Model->NbEntities();
 178           for (Standard_Integer ie = 1; ie <= nb; ie++) {
 179             Handle(Standard_Transient) enti = Model->Value(ie);
 180             if (enti->DynamicType() != tPD) continue;
 181
 182             Handle(StepBasic_ProductDefinition) PD =
 183               Handle(StepBasic_ProductDefinition)::DownCast(enti);
 184             if (PD.IsNull()) continue;
 185
 186             Handle(StepBasic_Product) Prod = PD->Formation()->OfProduct();
 187             if (Prod->Name()->UsefullLength() <= 0) continue;
 188
 189             Handle(TCollection_HAsciiString) aName = Prod->Name();
 190             TCollection_ExtendedString aNameExt (aName->ToCString());
 191
 192             // special check to pass names like "Open CASCADE STEP translator 6.3 1"
 193             TCollection_AsciiString aSkipName ("Open CASCADE STEP translator");
 194             if (aName->Length() >= aSkipName.Length()) {
 195               if (aName->String().SubString(1, aSkipName.Length()).IsEqual(aSkipName))
 196                 continue;
 197             }
 198
 199             // find target shape
 200             Handle(Transfer_Binder) binder = TP->Find(enti);
 201             if (binder.IsNull()) continue;
 202             TopoDS_Shape S = TransferBRep::ShapeResult(binder);
 203             if (S.IsNull()) continue;
 204
 205             // as PRODUCT can be included in the main shape
 206             // several times, we look here for all iclusions.
 207             Standard_Integer isub, nbSubs = anIndices.Extent();
 208             for (isub = 1; isub <= nbSubs; isub++)
 209             {
 210               TopoDS_Shape aSub = anIndices.FindKey(isub);
 211               if (aSub.IsPartner(S)) {
 212                 // create label and set shape
 213                 TDF_Label L;
 214                 TDF_TagSource aTag;
 215                 L = aTag.NewChild(theShapeLabel);
 216                 TNaming_Builder tnBuild (L);
 217                 //tnBuild.Generated(S);
 218                 tnBuild.Generated(aSub);
 219
 220                 // set a name
 221                 TDataStd_Name::Set(L, aNameExt);
 222               }
 223             }
 224           }
 225         }
 226         // END: Store names
 227       }
 228       else {
 229 //        switch (status) {
 230 //        case IFSelect_RetVoid:
 231 //          theError = "Nothing created or No data to process";
 232 //          break;
 233 //        case IFSelect_RetError:
 234 //          theError = "Error in command or input data";
 235 //          break;
 236 //        case IFSelect_RetFail:
 237 //          theError = "Execution was run, but has failed";
 238 //          break;
 239 //        case IFSelect_RetStop:
 240 //          theError = "Execution has been stopped. Quite possible, an exception was raised";
 241 //          break;
 242 //        default:
 243 //          break;
 244 //        }
 245         theError = "Wrong format of the imported file. Can't import file.";
 246         aResShape.Nullify();
 247       }
 248     }
 249     catch (Standard_Failure) {
 250       Handle(Standard_Failure) aFail = Standard_Failure::Caught();
 251       theError = aFail->GetMessageString();
 252       aResShape.Nullify();
 253     }
 254     // Return previous locale
 255     return aResShape;
 256   }
 257 }