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 <Basics_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 #include <StepShape_TopologicalRepresentationItem.hxx>
  44 #include <StepGeom_GeometricRepresentationItem.hxx>
  45
  46 #include <Transfer_Binder.hxx>
  47 #include <TNaming_Builder.hxx>
  48 #include <TDataStd_Name.hxx>
  49 #include <Transfer_TransientProcess.hxx>
  50 #include <TransferBRep.hxx>
  51
  52 #include <TCollection_AsciiString.hxx>
  53 #include <TopoDS_Compound.hxx>
  54 #include <TopoDS_Shape.hxx>
  55 #include <TDF_Label.hxx>
  56 #include <TDF_ChildIDIterator.hxx>
  57 #include <TNaming_NamedShape.hxx>
  58 #include <TDF_Tool.hxx>
  59 #include <Interface_Static.hxx>
  60
  61 #include <TopTools_IndexedMapOfShape.hxx>
  62 #include <TopExp.hxx>
  63 #include <TopoDS_Iterator.hxx>
  64 #include <BRepTools.hxx>
  65
  66 #include <Standard_Failure.hxx>
  67 #include <Standard_ErrorHandler.hxx> // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC
  68
  69 #ifdef WNT
  70  #if defined STEPIMPORT_EXPORTS || defined STEPImport_EXPORTS
  71   #if defined WIN32
  72    #define STEPIMPORT_EXPORT __declspec( dllexport )
  73   #else
  74    #define STEPIMPORT_EXPORT
  75   #endif
  76  #else
  77   #if defined WIN32
  78    #define STEPIMPORT_EXPORT __declspec( dllimport )
  79   #else
  80    #define STEPIMPORT_EXPORT
  81   #endif
  82  #endif
  83 #else
  84  #define STEPIMPORT_EXPORT
  85 #endif
  86
  87 //=============================================================================
  88 /*!
  89  *  Import()
  90  */
  91 //=============================================================================
  92
  93 extern "C"
  94 {
  95   STEPIMPORT_EXPORT
  96   TopoDS_Shape Import (const TCollection_AsciiString& theFileName,
  97                        const TCollection_AsciiString& /*theFormatName*/,
  98                        TCollection_AsciiString&       theError,
  99                        const TDF_Label&               theShapeLabel)
 100   {
 101     MESSAGE("Import STEP model from file " << theFileName.ToCString());
 102     // Set "C" numeric locale to save numbers correctly
 103     Kernel_Utils::Localizer loc;
 104     TopoDS_Shape aResShape;
 105     //VRV: OCC 4.0 migration
 106     STEPControl_Reader aReader;
 107     //VSR: 16/09/09: Convert to METERS
 108     Interface_Static::SetCVal("xstep.cascade.unit","M");
 109     Interface_Static::SetIVal("read.step.ideas", 1);
 110     Interface_Static::SetIVal("read.step.nonmanifold", 1);
 111     //VRV: OCC 4.0 migration
 112     TopoDS_Compound compound;
 113     BRep_Builder B;
 114     B.MakeCompound(compound);
 115     try {
 116 #if OCC_VERSION_LARGE > 0x06010000
 117       OCC_CATCH_SIGNALS;
 118 #endif
 119       IFSelect_ReturnStatus status = aReader.ReadFile(theFileName.ToCString());
 120
 121       if (status == IFSelect_RetDone) {
 122         Standard_Boolean failsonly = Standard_False;
 123         aReader.PrintCheckLoad(failsonly, IFSelect_ItemsByEntity);
 124         /* Root transfers */
 125         Standard_Integer nbr = aReader.NbRootsForTransfer();
 126         aReader.PrintCheckTransfer(failsonly, IFSelect_ItemsByEntity);
 127
 128         for (Standard_Integer n = 1; n <= nbr; n++) {
 129           Standard_Boolean ok = aReader.TransferRoot(n);
 130           /* Collecting resulting entities */
 131           Standard_Integer nbs = aReader.NbShapes();
 132           if (!ok || nbs == 0)
 133           {
 134             // THROW_SALOME_CORBA_EXCEPTION("Exception catched in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM);
 135             continue; // skip empty root
 136           }
 137           /* For a single entity */
 138           else if (nbr == 1 && nbs == 1) {
 139             aResShape = aReader.Shape(1);
 140             // ATTENTION: this is a workaround for mantis issue 0020442 remark 0010776
 141             // It should be removed after patching OCCT for bug OCC22436
 142             // (fix for OCCT is expected in service pack next to OCCT6.3sp12)
 143             if (aResShape.ShapeType() == TopAbs_COMPOUND) {
 144               int nbSub1 = 0;
 145               TopoDS_Shape currShape;
 146               TopoDS_Iterator It (aResShape, Standard_True, Standard_True);
 147               for (; It.More(); It.Next()) {
 148                 nbSub1++;
 149                 currShape = It.Value();
 150               }
 151               if (nbSub1 == 1)
 152                 aResShape = currShape;
 153             }
 154             // END workaround
 155             break;
 156           }
 157
 158           for (Standard_Integer i = 1; i <= nbs; i++) {
 159             TopoDS_Shape aShape = aReader.Shape(i);
 160             if (aShape.IsNull()) {
 161               // THROW_SALOME_CORBA_EXCEPTION("Null shape in GEOM_Gen_i::ImportStep", SALOME::BAD_PARAM) ;
 162               //return aResShape;
 163               continue;
 164             }
 165             else {
 166               B.Add(compound, aShape);
 167             }
 168           }
 169         }
 170         if (aResShape.IsNull())
 171           aResShape = compound;
 172
 173         // BEGIN: Store names of sub-shapes from file
 174         TopTools_IndexedMapOfShape anIndices;
 175         TopExp::MapShapes(aResShape, anIndices);
 176
 177         Handle(Interface_InterfaceModel) Model = aReader.WS()->Model();
 178         Handle(XSControl_TransferReader) TR = aReader.WS()->TransferReader();
 179         if (!TR.IsNull()) {
 180           Handle(Transfer_TransientProcess) TP = TR->TransientProcess();
 181           Handle(Standard_Type) tPD  = STANDARD_TYPE(StepBasic_ProductDefinition);
 182           Handle(Standard_Type) tShape  = STANDARD_TYPE(StepShape_TopologicalRepresentationItem);
 183           Handle(Standard_Type) tGeom  = STANDARD_TYPE(StepGeom_GeometricRepresentationItem);
 184
 185           Standard_Integer nb = Model->NbEntities();
 186           for (Standard_Integer ie = 1; ie <= nb; ie++) {
 187             Handle(Standard_Transient) enti = Model->Value(ie);
 188             Handle(TCollection_HAsciiString) aName;
 189             if ( enti->IsKind( tShape ) || enti->IsKind(tGeom))
 190             {
 191               aName = Handle(StepRepr_RepresentationItem)::DownCast(enti)->Name();
 192             }
 193             else if (enti->DynamicType() == tPD)
 194             {
 195               Handle(StepBasic_ProductDefinition) PD =
 196                 Handle(StepBasic_ProductDefinition)::DownCast(enti);
 197               if (PD.IsNull()) continue;
 198
 199               Handle(StepBasic_Product) Prod = PD->Formation()->OfProduct();
 200               aName = Prod->Name();
 201             }
 202             else
 203             {
 204               continue;
 205             }
 206             if ( aName->UsefullLength() < 1 )
 207               continue;
 208             // skip 'N0NE' name
 209             if ( aName->UsefullLength() == 4 &&
 210                  toupper (aName->Value(1)) == 'N' &&
 211                  toupper (aName->Value(2)) == 'O' &&
 212                  toupper (aName->Value(3)) == 'N' &&
 213                  toupper (aName->Value(4)) == 'E')
 214               continue;
 215
 216             // special check to pass names like "Open CASCADE STEP translator 6.3 1"
 217             TCollection_AsciiString aSkipName ("Open CASCADE STEP translator");
 218             if (aName->Length() >= aSkipName.Length()) {
 219               if (aName->String().SubString(1, aSkipName.Length()).IsEqual(aSkipName))
 220                 continue;
 221             }
 222             TCollection_ExtendedString aNameExt (aName->ToCString());
 223
 224             // find target shape
 225             Handle(Transfer_Binder) binder = TP->Find(enti);
 226             if (binder.IsNull()) continue;
 227             TopoDS_Shape S = TransferBRep::ShapeResult(binder);
 228             if (S.IsNull()) continue;
 229
 230             // as PRODUCT can be included in the main shape
 231             // several times, we look here for all iclusions.
 232             Standard_Integer isub, nbSubs = anIndices.Extent();
 233             for (isub = 1; isub <= nbSubs; isub++)
 234             {
 235               TopoDS_Shape aSub = anIndices.FindKey(isub);
 236               if (aSub.IsPartner(S)) {
 237                 TDF_Label L;
 238                 if (enti->IsKind(tGeom)) {
 239                   // check all named shapes using iterator
 240                   TDF_ChildIDIterator anIt (theShapeLabel, TDataStd_Name::GetID(), Standard_True);
 241                   for (; anIt.More(); anIt.Next()) {
 242                     Handle(TDataStd_Name) nameAttr =
 243                       Handle(TDataStd_Name)::DownCast(anIt.Value());
 244                     if (nameAttr.IsNull()) continue;
 245                     TDF_Label Lab = nameAttr->Label();
 246                     Handle(TNaming_NamedShape) shAttr;
 247                     if (Lab.FindAttribute(TNaming_NamedShape::GetID(), shAttr) && shAttr->Get().IsEqual(aSub))
 248                       L = Lab;
 249                   }
 250                 }
 251                 // create label and set shape
 252                 if (L.IsNull())
 253                 {
 254                   TDF_TagSource aTag;
 255                   L = aTag.NewChild(theShapeLabel);
 256                   TNaming_Builder tnBuild (L);
 257                   //tnBuild.Generated(S);
 258                   tnBuild.Generated(aSub);
 259                 }
 260                 // set a name
 261                 TDataStd_Name::Set(L, aNameExt);
 262               }
 263             }
 264           }
 265         }
 266         // END: Store names
 267       }
 268       else {
 269 //        switch (status) {
 270 //        case IFSelect_RetVoid:
 271 //          theError = "Nothing created or No data to process";
 272 //          break;
 273 //        case IFSelect_RetError:
 274 //          theError = "Error in command or input data";
 275 //          break;
 276 //        case IFSelect_RetFail:
 277 //          theError = "Execution was run, but has failed";
 278 //          break;
 279 //        case IFSelect_RetStop:
 280 //          theError = "Execution has been stopped. Quite possible, an exception was raised";
 281 //          break;
 282 //        default:
 283 //          break;
 284 //        }
 285         theError = "Wrong format of the imported file. Can't import file.";
 286         aResShape.Nullify();
 287       }
 288     }
 289     catch (Standard_Failure) {
 290       Handle(Standard_Failure) aFail = Standard_Failure::Caught();
 291       theError = aFail->GetMessageString();
 292       aResShape.Nullify();
 293     }
 294     // Return previous locale
 295     return aResShape;
 296   }
 297 }