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