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0021684: EDF 2221 : Display the arguments and the name of the operations
[modules/geom.git] / src / GEOMImpl / GEOMImpl_IBooleanOperations.cxx
index 61b65e4b512467d0427623585b9a057596bef089..a96b1810bf54d3cd0680e0ca0a9a851d3baf3508 100644 (file)
@@ -1,22 +1,47 @@
-using namespace std; 
-
-#include "GEOMImpl_IBooleanOperations.hxx"
-
-#include "GEOM_Function.hxx"
-#include "GEOM_PythonDump.hxx"
-
-#include "GEOMImpl_Types.hxx"
-
-#include "GEOMImpl_BooleanDriver.hxx"
-#include "GEOMImpl_IBoolean.hxx"
-
-#include "GEOMImpl_PartitionDriver.hxx"
-#include "GEOMImpl_IPartition.hxx"
+// Copyright (C) 2007-2013  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
+//
+
+#include <Standard_Stream.hxx>
+
+#include <GEOMImpl_IBooleanOperations.hxx>
+
+#include <GEOM_Function.hxx>
+#include <GEOM_PythonDump.hxx>
+
+#include <GEOMImpl_Types.hxx>
+
+#include <GEOMImpl_BooleanDriver.hxx>
+#include <GEOMImpl_IBoolean.hxx>
+
+#include <GEOMImpl_PartitionDriver.hxx>
+#include <GEOMImpl_IPartition.hxx>
+
+#include <Basics_OCCTVersion.hxx>
 
 #include <TDF_Tool.hxx>
 
 #include "utilities.h"
 
+#include <Standard_Failure.hxx>
 #include <Standard_ErrorHandler.hxx> // CAREFUL ! position of this file is critic : see Lucien PIGNOLONI / OCC
 
 //=============================================================================
@@ -24,7 +49,7 @@ using namespace std;
  *   constructor:
  */
 //=============================================================================
-GEOMImpl_IBooleanOperations::GEOMImpl_IBooleanOperations (GEOM_Engine* theEngine, int theDocID) 
+GEOMImpl_IBooleanOperations::GEOMImpl_IBooleanOperations (GEOM_Engine* theEngine, int theDocID)
 : GEOM_IOperations(theEngine, theDocID)
 {
   MESSAGE("GEOMImpl_IBooleanOperations::GEOMImpl_IBooleanOperations");
@@ -53,10 +78,10 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeBoolean (Handle(GEOM_Object
   SetErrorCode(KO);
 
   if (theShape1.IsNull() || theShape2.IsNull()) return NULL;
-  //Add a new Boolean object  
+
+  //Add a new Boolean object
   Handle(GEOM_Object) aBool = GetEngine()->AddObject(GetDocID(), GEOM_BOOLEAN);
+
   //Add a new Boolean function
   Handle(GEOM_Function) aFunction;
   if (theOp == 1) {
@@ -72,10 +97,10 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeBoolean (Handle(GEOM_Object
   if (aFunction.IsNull()) return NULL;
 
   //Check if the function is set correctly
-  if (aFunction->GetDriverGUID() != GEOMImpl_BooleanDriver::GetID()) return NULL; 
+  if (aFunction->GetDriverGUID() != GEOMImpl_BooleanDriver::GetID()) return NULL;
 
   GEOMImpl_IBoolean aCI (aFunction);
-  
+
   Handle(GEOM_Function) aRef1 = theShape1->GetLastFunction();
   Handle(GEOM_Function) aRef2 = theShape2->GetLastFunction();
 
@@ -86,6 +111,9 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeBoolean (Handle(GEOM_Object
 
   //Compute the Boolean value
   try {
+#if OCC_VERSION_LARGE > 0x06010000
+    OCC_CATCH_SIGNALS;
+#endif
     if (!GetSolver()->ComputeFunction(aFunction)) {
       SetErrorCode("Boolean driver failed");
       return NULL;
@@ -108,7 +136,186 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeBoolean (Handle(GEOM_Object
   pd << theShape1 << ", " << theShape2 << ")";
 
   SetErrorCode(OK);
-  return aBool; 
+  return aBool;
+}
+
+//=============================================================================
+/*!
+ *  MakeFuseList
+ */
+//=============================================================================
+Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeFuseList
+                  (const Handle(TColStd_HSequenceOfTransient)& theShapes)
+{
+  SetErrorCode(KO);
+
+  if (theShapes.IsNull()) return NULL;
+
+  //Add a new Boolean object
+  Handle(GEOM_Object) aBool = GetEngine()->AddObject(GetDocID(), GEOM_BOOLEAN);
+
+  //Add a new Boolean function
+  Handle(GEOM_Function) aFunction =
+    aBool->AddFunction(GEOMImpl_BooleanDriver::GetID(), BOOLEAN_FUSE_LIST);
+
+  if (aFunction.IsNull()) return NULL;
+
+  //Check if the function is set correctly
+  if (aFunction->GetDriverGUID() != GEOMImpl_BooleanDriver::GetID()) return NULL;
+
+  GEOMImpl_IBoolean aCI (aFunction);
+
+  TCollection_AsciiString aDescription;
+  Handle(TColStd_HSequenceOfTransient) aShapesSeq =
+    getShapeFunctions(theShapes, aDescription);
+
+  if (aShapesSeq.IsNull()) return NULL;
+
+  aCI.SetShapes(aShapesSeq);
+
+  //Compute the Boolean value
+  try {
+#if OCC_VERSION_LARGE > 0x06010000
+    OCC_CATCH_SIGNALS;
+#endif
+    if (!GetSolver()->ComputeFunction(aFunction)) {
+      SetErrorCode("Boolean driver failed");
+      return NULL;
+    }
+  }
+  catch (Standard_Failure) {
+    Handle(Standard_Failure) aFail = Standard_Failure::Caught();
+    SetErrorCode(aFail->GetMessageString());
+    return NULL;
+  }
+
+  //Make a Python command
+  GEOM::TPythonDump(aFunction) << aBool <<
+    " = geompy.MakeFuseList([" << aDescription.ToCString() << "])";
+
+  SetErrorCode(OK);
+  return aBool;
+}
+
+//=============================================================================
+/*!
+ *  MakeCommonList
+ */
+//=============================================================================
+Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeCommonList
+                  (const Handle(TColStd_HSequenceOfTransient)& theShapes)
+{
+  SetErrorCode(KO);
+
+  if (theShapes.IsNull()) return NULL;
+
+  //Add a new Boolean object
+  Handle(GEOM_Object) aBool = GetEngine()->AddObject(GetDocID(), GEOM_BOOLEAN);
+
+  //Add a new Boolean function
+  Handle(GEOM_Function) aFunction =
+    aBool->AddFunction(GEOMImpl_BooleanDriver::GetID(), BOOLEAN_COMMON_LIST);
+
+  if (aFunction.IsNull()) return NULL;
+
+  //Check if the function is set correctly
+  if (aFunction->GetDriverGUID() != GEOMImpl_BooleanDriver::GetID()) return NULL;
+
+  GEOMImpl_IBoolean aCI (aFunction);
+
+  TCollection_AsciiString aDescription;
+  Handle(TColStd_HSequenceOfTransient) aShapesSeq =
+    getShapeFunctions(theShapes, aDescription);
+
+  if (aShapesSeq.IsNull()) return NULL;
+
+  aCI.SetShapes(aShapesSeq);
+
+  //Compute the Boolean value
+  try {
+#if OCC_VERSION_LARGE > 0x06010000
+    OCC_CATCH_SIGNALS;
+#endif
+    if (!GetSolver()->ComputeFunction(aFunction)) {
+      SetErrorCode("Boolean driver failed");
+      return NULL;
+    }
+  }
+  catch (Standard_Failure) {
+    Handle(Standard_Failure) aFail = Standard_Failure::Caught();
+    SetErrorCode(aFail->GetMessageString());
+    return NULL;
+  }
+
+  //Make a Python command
+  GEOM::TPythonDump(aFunction) << aBool <<
+    " = geompy.MakeCommonList([" << aDescription.ToCString() << "])";
+
+  SetErrorCode(OK);
+  return aBool;
+}
+
+//=============================================================================
+/*!
+ *  MakeCutList
+ */
+//=============================================================================
+Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeCutList
+                  (Handle(GEOM_Object) theMainShape,
+                   const Handle(TColStd_HSequenceOfTransient)& theShapes)
+{
+  SetErrorCode(KO);
+
+  if (theShapes.IsNull()) return NULL;
+
+  //Add a new Boolean object
+  Handle(GEOM_Object) aBool = GetEngine()->AddObject(GetDocID(), GEOM_BOOLEAN);
+
+  //Add a new Boolean function
+  Handle(GEOM_Function) aFunction =
+    aBool->AddFunction(GEOMImpl_BooleanDriver::GetID(), BOOLEAN_CUT_LIST);
+
+  if (aFunction.IsNull()) return NULL;
+
+  //Check if the function is set correctly
+  if (aFunction->GetDriverGUID() != GEOMImpl_BooleanDriver::GetID()) return NULL;
+
+  GEOMImpl_IBoolean aCI (aFunction);
+  Handle(GEOM_Function) aMainRef = theMainShape->GetLastFunction();
+
+  if (aMainRef.IsNull()) return NULL;
+
+  TCollection_AsciiString aDescription;
+  Handle(TColStd_HSequenceOfTransient) aShapesSeq =
+    getShapeFunctions(theShapes, aDescription);
+
+  if (aShapesSeq.IsNull()) return NULL;
+
+  aCI.SetShape1(aMainRef);
+  aCI.SetShapes(aShapesSeq);
+
+  //Compute the Boolean value
+  try {
+#if OCC_VERSION_LARGE > 0x06010000
+    OCC_CATCH_SIGNALS;
+#endif
+    if (!GetSolver()->ComputeFunction(aFunction)) {
+      SetErrorCode("Boolean driver failed");
+      return NULL;
+    }
+  }
+  catch (Standard_Failure) {
+    Handle(Standard_Failure) aFail = Standard_Failure::Caught();
+    SetErrorCode(aFail->GetMessageString());
+    return NULL;
+  }
+
+  //Make a Python command
+  GEOM::TPythonDump(aFunction) << aBool << " = geompy.MakeCutList("
+    << theMainShape << ", [" << aDescription.ToCString() << "])";
+
+  SetErrorCode(OK);
+  return aBool;
 }
 
 //=============================================================================
@@ -117,121 +324,87 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeBoolean (Handle(GEOM_Object
  */
 //=============================================================================
 Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakePartition
-                             (const Handle(TColStd_HSequenceOfTransient)& theShapes, 
+                             (const Handle(TColStd_HSequenceOfTransient)& theShapes,
                               const Handle(TColStd_HSequenceOfTransient)& theTools,
                               const Handle(TColStd_HSequenceOfTransient)& theKeepIns,
                               const Handle(TColStd_HSequenceOfTransient)& theRemoveIns,
-                              const Standard_Integer           theLimit,
-                              const Standard_Boolean           theRemoveWebs,
-                              const Handle(TColStd_HArray1OfInteger)& theMaterials)
+                              const Standard_Integer                      theLimit,
+                              const Standard_Boolean                      theRemoveWebs,
+                              const Handle(TColStd_HArray1OfInteger)&     theMaterials,
+                              const Standard_Integer theKeepNonlimitShapes,
+                              const Standard_Boolean thePerformSelfIntersections)
 {
   SetErrorCode(KO);
 
-  //Add a new Partition object  
+  //Add a new Partition object
   Handle(GEOM_Object) aPartition = GetEngine()->AddObject(GetDocID(), GEOM_PARTITION);
+
   //Add a new Partition function
-  Handle(GEOM_Function) aFunction =
-    aPartition->AddFunction(GEOMImpl_PartitionDriver::GetID(), PARTITION_PARTITION);
+  Handle(GEOM_Function) aFunction;
+  if (thePerformSelfIntersections)
+    aFunction = aPartition->AddFunction(GEOMImpl_PartitionDriver::GetID(), PARTITION_PARTITION);
+  else
+    aFunction = aPartition->AddFunction(GEOMImpl_PartitionDriver::GetID(), PARTITION_NO_SELF_INTERSECTIONS);
   if (aFunction.IsNull()) return NULL;
 
   //Check if the function is set correctly
-  if (aFunction->GetDriverGUID() != GEOMImpl_PartitionDriver::GetID()) return NULL; 
+  if (aFunction->GetDriverGUID() != GEOMImpl_PartitionDriver::GetID()) return NULL;
 
   GEOMImpl_IPartition aCI (aFunction);
-  
-//  int aLen = theShapes.size();
-//  aCI.SetLength(aLen);
 
-  Handle(TColStd_HSequenceOfTransient) aShapesSeq  = new TColStd_HSequenceOfTransient;
-  Handle(TColStd_HSequenceOfTransient) aToolsSeq   = new TColStd_HSequenceOfTransient;
-  Handle(TColStd_HSequenceOfTransient) aKeepInsSeq = new TColStd_HSequenceOfTransient;
-  Handle(TColStd_HSequenceOfTransient) aRemInsSeq  = new TColStd_HSequenceOfTransient;
-
-  Standard_Integer ind, aLen;
-  TCollection_AsciiString anEntry;
+  Handle(TColStd_HSequenceOfTransient) aShapesSeq;
+  Handle(TColStd_HSequenceOfTransient) aToolsSeq;
+  Handle(TColStd_HSequenceOfTransient) aKeepInsSeq;
+  Handle(TColStd_HSequenceOfTransient) aRemInsSeq;
   TCollection_AsciiString aShapesDescr, aToolsDescr, aKeepInsDescr, aRemoveInsDescr;
 
   // Shapes
-  aLen = theShapes->Length();
-  for (ind = 1; ind <= aLen; ind++) {
-    Handle(GEOM_Object) anObj = Handle(GEOM_Object)::DownCast(theShapes->Value(ind));
-    Handle(GEOM_Function) aRefSh = anObj->GetLastFunction();
-    if (aRefSh.IsNull()) {
-      SetErrorCode("NULL shape for Partition");
-      return NULL;
-    }
-    aShapesSeq->Append(aRefSh);
+  aShapesSeq = getShapeFunctions(theShapes, aShapesDescr);
 
-    // For Python command
-    TDF_Tool::Entry(anObj->GetEntry(), anEntry);
-    if (ind > 1) aShapesDescr += ", ";
-    aShapesDescr += anEntry;
+  if (aShapesSeq.IsNull()) {
+    SetErrorCode("NULL shape for Partition");
+    return NULL;
   }
-  aCI.SetShapes(aShapesSeq);
 
   // Tools
-  aLen = theTools->Length();
-  for (ind = 1; ind <= aLen; ind++) {
-    Handle(GEOM_Object) anObj = Handle(GEOM_Object)::DownCast(theTools->Value(ind));
-    Handle(GEOM_Function) aRefSh = anObj->GetLastFunction();
-    if (aRefSh.IsNull()) {
-      SetErrorCode("NULL tool shape for Partition");
-      return NULL;
-    }
-    aToolsSeq->Append(aRefSh);
+  aToolsSeq = getShapeFunctions(theTools, aToolsDescr);
 
-    // For Python command
-    TDF_Tool::Entry(anObj->GetEntry(), anEntry);
-    if (ind > 1) aToolsDescr += ", ";
-    aToolsDescr += anEntry;
+  if (aToolsSeq.IsNull()) {
+    SetErrorCode("NULL tool shape for Partition");
+    return NULL;
   }
-  aCI.SetTools(aToolsSeq);
 
   // Keep Inside
-  aLen = theKeepIns->Length();
-  for (ind = 1; ind <= aLen; ind++) {
-    Handle(GEOM_Object) anObj = Handle(GEOM_Object)::DownCast(theKeepIns->Value(ind));
-    Handle(GEOM_Function) aRefSh = anObj->GetLastFunction();
-    if (aRefSh.IsNull()) {
-      SetErrorCode("NULL <keep inside> shape for Partition");
-      return NULL;
-    }
-    aKeepInsSeq->Append(aRefSh);
+  aKeepInsSeq = getShapeFunctions(theKeepIns, aKeepInsDescr);
 
-    // For Python command
-    TDF_Tool::Entry(anObj->GetEntry(), anEntry);
-    if (ind > 1) aKeepInsDescr += ", ";
-    aKeepInsDescr += anEntry;
+  if (aKeepInsSeq.IsNull()) {
+    SetErrorCode("NULL <keep inside> shape for Partition");
+    return NULL;
   }
-  aCI.SetKeepIns(aKeepInsSeq);
 
   // Remove Inside
-  aLen = theRemoveIns->Length();
-  for (ind = 1; ind <= aLen; ind++) {
-    Handle(GEOM_Object) anObj = Handle(GEOM_Object)::DownCast(theRemoveIns->Value(ind));
-    Handle(GEOM_Function) aRefSh = anObj->GetLastFunction();
-    if (aRefSh.IsNull()) {
-      SetErrorCode("NULL <remove inside> shape for Partition");
-      return NULL;
-    }
-    aRemInsSeq->Append(aRefSh);
+  aRemInsSeq  = getShapeFunctions(theRemoveIns, aRemoveInsDescr);
 
-    // For Python command
-    TDF_Tool::Entry(anObj->GetEntry(), anEntry);
-    if (ind > 1) aRemoveInsDescr += ", ";
-    aRemoveInsDescr += anEntry;
+  if (aRemInsSeq.IsNull()) {
+    SetErrorCode("NULL <remove inside> shape for Partition");
+    return NULL;
   }
+
+  aCI.SetShapes(aShapesSeq);
+  aCI.SetTools(aToolsSeq);
+  aCI.SetKeepIns(aKeepInsSeq);
   aCI.SetRemoveIns(aRemInsSeq);
 
   // Limit
   aCI.SetLimit(theLimit);
+  aCI.SetKeepNonlimitShapes(theKeepNonlimitShapes);
 
   // Materials
   if (theRemoveWebs) {
     if (theMaterials.IsNull()) {
       Handle(TColStd_HArray1OfInteger) aMaterials =
         new TColStd_HArray1OfInteger (1, aShapesSeq->Length());
+      aMaterials->Init(0);
       aCI.SetMaterials(aMaterials);
     } else {
       aCI.SetMaterials(theMaterials);
@@ -240,6 +413,9 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakePartition
 
   //Compute the Partition
   try {
+#if OCC_VERSION_LARGE > 0x06010000
+    OCC_CATCH_SIGNALS;
+#endif
     if (!GetSolver()->ComputeFunction(aFunction)) {
       SetErrorCode("Partition driver failed");
       return NULL;
@@ -251,17 +427,21 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakePartition
     return NULL;
   }
 
-  //Make a Python command 
+  //Make a Python command
   GEOM::TPythonDump pd (aFunction);
-  pd << aPartition << " = geompy.MakePartition([";
+  if (thePerformSelfIntersections)
+    pd << aPartition << " = geompy.MakePartition([";
+  else
+    pd << aPartition << " = geompy.MakePartitionNonSelfIntersectedShape([";
+
   // Shapes, Tools
   pd << aShapesDescr.ToCString() << "], [" << aToolsDescr.ToCString() << "], [";
   // Keep Ins, Remove Ins
   pd << aKeepInsDescr.ToCString() << "], [" << aRemoveInsDescr.ToCString() << "], ";
   // Limit, Remove Webs
-  pd << theLimit << ", " << (int)theRemoveWebs << ", [";
+  pd << TopAbs_ShapeEnum(theLimit) << ", " << (int)theRemoveWebs << ", [";
   // Materials
-  if (theMaterials->Length() > 0) {
+  if (!theMaterials.IsNull() && theMaterials->Length() > 0) {
     int i = theMaterials->Lower();
     pd << theMaterials->Value(i);
     i++;
@@ -269,10 +449,10 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakePartition
       pd << ", " << theMaterials->Value(i);
     }
   }
-  pd << "])";
+  pd << "], " << theKeepNonlimitShapes <<")";
 
   SetErrorCode(OK);
-  return aPartition; 
+  return aPartition;
 }
 
 //=============================================================================
@@ -286,20 +466,20 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeHalfPartition
   SetErrorCode(KO);
 
   if (theShape.IsNull() || thePlane.IsNull()) return NULL;
-  //Add a new Boolean object  
-  Handle(GEOM_Object) aPart = GetEngine()->AddObject(GetDocID(), GEOM_BOOLEAN);
+
+  //Add a new Boolean object
+  Handle(GEOM_Object) aPart = GetEngine()->AddObject(GetDocID(), GEOM_PARTITION);
+
   //Add a new Partition function
   Handle(GEOM_Function) aFunction =
     aPart->AddFunction(GEOMImpl_PartitionDriver::GetID(), PARTITION_HALF);
   if (aFunction.IsNull()) return NULL;
 
   //Check if the function is set correctly
-  if (aFunction->GetDriverGUID() != GEOMImpl_PartitionDriver::GetID()) return NULL; 
+  if (aFunction->GetDriverGUID() != GEOMImpl_PartitionDriver::GetID()) return NULL;
 
   GEOMImpl_IPartition aCI (aFunction);
-  
+
   Handle(GEOM_Function) aRef1 = theShape->GetLastFunction();
   Handle(GEOM_Function) aRef2 = thePlane->GetLastFunction();
 
@@ -310,6 +490,9 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeHalfPartition
 
   //Compute the Partition value
   try {
+#if OCC_VERSION_LARGE > 0x06010000
+    OCC_CATCH_SIGNALS;
+#endif
     if (!GetSolver()->ComputeFunction(aFunction)) {
       SetErrorCode("Partition driver failed");
       return NULL;
@@ -321,10 +504,53 @@ Handle(GEOM_Object) GEOMImpl_IBooleanOperations::MakeHalfPartition
     return NULL;
   }
 
-  //Make a Python command 
+  //Make a Python command
   GEOM::TPythonDump(aFunction) << aPart << " = geompy.MakeHalfPartition("
                                << theShape << ", " << thePlane << ")";
 
   SetErrorCode(OK);
-  return aPart; 
+  return aPart;
+}
+
+//=============================================================================
+/*!
+ *  getShapeFunctions
+ */
+//=============================================================================
+Handle(TColStd_HSequenceOfTransient)
+  GEOMImpl_IBooleanOperations::getShapeFunctions
+                  (const Handle(TColStd_HSequenceOfTransient)& theObjects,
+                         TCollection_AsciiString &theDescription)
+{
+  Handle(TColStd_HSequenceOfTransient) aResult =
+    new TColStd_HSequenceOfTransient;
+  Standard_Integer aNbObjects = theObjects->Length();
+  Standard_Integer i;
+  TCollection_AsciiString anEntry;
+  Handle(GEOM_Object) anObj;
+  Handle(GEOM_Function) aRefObj;
+
+  // Shapes
+  for (i = 1; i <= aNbObjects; i++) {
+    anObj = Handle(GEOM_Object)::DownCast(theObjects->Value(i));
+    aRefObj = anObj->GetLastFunction();
+
+    if (aRefObj.IsNull()) {
+      aResult.Nullify();
+      break;
+    }
+
+    aResult->Append(aRefObj);
+
+    // For Python command
+    TDF_Tool::Entry(anObj->GetEntry(), anEntry);
+
+    if (i > 1) {
+      theDescription += ", ";
+    }
+
+    theDescription += anEntry;
+  }
+
+  return aResult;
 }