src/GeomAlgoAPI/GeomAlgoAPI_Defeaturing.cpp

   1 // Copyright (C) 2020-2023  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include <GeomAlgoAPI_Defeaturing.h>
  21 #include <GeomAlgoAPI_DFLoader.h>
  22
  23 #include <BRepAlgoAPI_Defeaturing.hxx>
  24
  25 GeomAlgoAPI_Defeaturing::GeomAlgoAPI_Defeaturing(const GeomShapePtr& theBaseSolid,
  26                                                  const ListOfShape&  theFacesToRemove)
  27 {
  28   build(theBaseSolid, theFacesToRemove);
  29 }
  30
  31 void GeomAlgoAPI_Defeaturing::build(const GeomShapePtr& theBaseSolid,
  32                                     const ListOfShape&  theFacesToRemove)
  33 {
  34   if (!theBaseSolid || theFacesToRemove.empty())
  35     return;
  36
  37   BRepAlgoAPI_Defeaturing* aDefeaturing = new BRepAlgoAPI_Defeaturing;
  38   aDefeaturing->SetShape(theBaseSolid->impl<TopoDS_Shape>());
  39   aDefeaturing->SetRunParallel(Standard_True);
  40
  41   // collect faces to remove
  42   TopTools_ListOfShape aFaces;
  43   for (ListOfShape::const_iterator anIt = theFacesToRemove.begin();
  44        anIt != theFacesToRemove.end(); ++anIt)
  45     aDefeaturing->AddFaceToRemove((*anIt)->impl<TopoDS_Shape>());
  46
  47   setImpl(aDefeaturing);
  48   setBuilderType(OCCT_BRepBuilderAPI_MakeShape);
  49
  50   // build and get result
  51   aDefeaturing->Build();
  52   if (!aDefeaturing->IsDone() || aDefeaturing->HasErrors() || aDefeaturing->HasWarnings()) {
  53     std::ostringstream errors;
  54     aDefeaturing->DumpErrors(errors);
  55     aDefeaturing->DumpWarnings(errors);
  56     myError = errors.str();
  57     // the error string may end by '\n', remove it for correct translation
  58     size_t aNbToRemove = 0;
  59     for (std::string::reverse_iterator it = myError.rbegin();
  60          it != myError.rend() && *it == '\n'; ++it)
  61       ++aNbToRemove;
  62     if (aNbToRemove > 0)
  63       myError = myError.substr(0, myError.size() - aNbToRemove);
  64     return;
  65   }
  66
  67   TopoDS_Shape aResult = GeomAlgoAPI_DFLoader::refineResult(aDefeaturing->Shape());
  68
  69   std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape());
  70   aShape->setImpl(new TopoDS_Shape(aResult));
  71   setShape(aShape);
  72   setDone(true);
  73 }