xref: /dports/cad/opencascade/opencascade-7.6.0/src/BRep/BRep_TFace.cxx

// Created on: 1992-08-25
// Created by: Remi Lequette
// Copyright (c) 1992-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.


#include <BRep_TFace.hxx>
#include <Geom_Surface.hxx>
#include <Poly_Triangulation.hxx>
#include <Standard_Type.hxx>
#include <TopAbs.hxx>
#include <TopLoc_Location.hxx>
#include <TopoDS_Shape.hxx>

IMPLEMENT_STANDARD_RTTIEXT(BRep_TFace,TopoDS_TFace)

//=======================================================================
//function : BRep_TFace
//purpose  :
//=======================================================================
BRep_TFace::BRep_TFace() :
       TopoDS_TFace(),
       myTolerance(RealEpsilon()),
       myNaturalRestriction(Standard_False)
{
}

//=======================================================================
//function : EmptyCopy
//purpose  :
//=======================================================================

Handle(TopoDS_TShape) BRep_TFace::EmptyCopy() const
{
  Handle(BRep_TFace) TF =
    new BRep_TFace();
  TF->Surface(mySurface);
  TF->Location(myLocation);
  TF->Tolerance(myTolerance);
  return TF;
}

//=======================================================================
//function : Triangulation
//purpose  :
//=======================================================================
const Handle(Poly_Triangulation)& BRep_TFace::Triangulation (const Poly_MeshPurpose thePurpose) const
{
  if (thePurpose == Poly_MeshPurpose_NONE)
  {
    return ActiveTriangulation();
  }
  for (Poly_ListOfTriangulation::Iterator anIter(myTriangulations); anIter.More(); anIter.Next())
  {
    const Handle(Poly_Triangulation)& aTriangulation = anIter.Value();
    if ((aTriangulation->MeshPurpose() & thePurpose) != 0)
    {
      return aTriangulation;
    }
  }
  if ((thePurpose & Poly_MeshPurpose_AnyFallback) != 0
    && !myTriangulations.IsEmpty())
  {
    // if none matching other criteria was found return the first defined triangulation
    return myTriangulations.First();
  }
  static const Handle(Poly_Triangulation) anEmptyTriangulation;
  return anEmptyTriangulation;
}

//=======================================================================
//function : Triangulation
//purpose  :
//=======================================================================
void BRep_TFace::Triangulation (const Handle(Poly_Triangulation)& theTriangulation,
                                const Standard_Boolean theToReset)
{
  if (theToReset || theTriangulation.IsNull())
  {
    if (!myActiveTriangulation.IsNull())
    {
      // Reset Active bit
      myActiveTriangulation->SetMeshPurpose (myActiveTriangulation->MeshPurpose() & ~Poly_MeshPurpose_Active);
      myActiveTriangulation.Nullify();
    }
    myTriangulations.Clear();
    if (!theTriangulation.IsNull())
    {
      // Reset list of triangulations to new list with only one input triangulation that will be active
      myTriangulations.Append (theTriangulation);
      myActiveTriangulation = theTriangulation;
      // Set Active bit
      theTriangulation->SetMeshPurpose (theTriangulation->MeshPurpose() | Poly_MeshPurpose_Active);
    }
    return;
  }
  for (Poly_ListOfTriangulation::Iterator anIter(myTriangulations); anIter.More(); anIter.Next())
  {
    // Make input triangulation active if it is already contained in list of triangulations
    if (anIter.Value() == theTriangulation)
    {
      if (!myActiveTriangulation.IsNull())
      {
        // Reset Active bit
        myActiveTriangulation->SetMeshPurpose (myActiveTriangulation->MeshPurpose() & ~Poly_MeshPurpose_Active);
      }
      myActiveTriangulation = theTriangulation;
      // Set Active bit
      theTriangulation->SetMeshPurpose (theTriangulation->MeshPurpose() | Poly_MeshPurpose_Active);
      return;
    }
  }
  for (Poly_ListOfTriangulation::Iterator anIter(myTriangulations); anIter.More(); anIter.Next())
  {
    // Replace active triangulation to input one
    if (anIter.Value() == myActiveTriangulation)
    {
      // Reset Active bit
      myActiveTriangulation->SetMeshPurpose (myActiveTriangulation->MeshPurpose() & ~Poly_MeshPurpose_Active);
      anIter.ChangeValue() = theTriangulation;
      myActiveTriangulation = theTriangulation;
      // Set Active bit
      theTriangulation->SetMeshPurpose (theTriangulation->MeshPurpose() | Poly_MeshPurpose_Active);
      return;
    }
  }
}

//=======================================================================
//function : Triangulations
//purpose  :
//=======================================================================
void BRep_TFace::Triangulations (const Poly_ListOfTriangulation& theTriangulations,
                                 const Handle(Poly_Triangulation)& theActiveTriangulation)
{
  if (theTriangulations.IsEmpty())
  {
    myActiveTriangulation.Nullify();
    myTriangulations.Clear();
    return;
  }
  Standard_Boolean anActiveInList = false;
  for (Poly_ListOfTriangulation::Iterator anIter(theTriangulations); anIter.More(); anIter.Next())
  {
    const Handle(Poly_Triangulation)& aTriangulation = anIter.Value();
    Standard_ASSERT_RAISE (!aTriangulation.IsNull(), "Try to set list with NULL triangulation to the face");
    if (aTriangulation == theActiveTriangulation)
    {
      anActiveInList = true;
    }
    // Reset Active bit
    aTriangulation->SetMeshPurpose (aTriangulation->MeshPurpose() & ~Poly_MeshPurpose_Active);
  }
  Standard_ASSERT_RAISE (theActiveTriangulation.IsNull() || anActiveInList, "Active triangulation isn't part of triangulations list");
  myTriangulations = theTriangulations;
  if (theActiveTriangulation.IsNull())
  {
    // Save the first one as active
    myActiveTriangulation = myTriangulations.First();
  }
  else
  {
    myActiveTriangulation = theActiveTriangulation;
  }
  myActiveTriangulation->SetMeshPurpose (myActiveTriangulation->MeshPurpose() | Poly_MeshPurpose_Active);
}

//=======================================================================
//function : DumpJson
//purpose  :
//=======================================================================
void BRep_TFace::DumpJson (Standard_OStream& theOStream, Standard_Integer theDepth) const
{
  OCCT_DUMP_TRANSIENT_CLASS_BEGIN (theOStream)

  OCCT_DUMP_BASE_CLASS (theOStream, theDepth, TopoDS_TFace)

  OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, myActiveTriangulation.get())
  OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, mySurface.get())
  OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, &myLocation)

  OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myTolerance)
  OCCT_DUMP_FIELD_VALUE_NUMERICAL (theOStream, myNaturalRestriction)

  for (Poly_ListOfTriangulation::Iterator anIter(myTriangulations); anIter.More(); anIter.Next())
  {
    const Handle(Poly_Triangulation)& aTriangulation = anIter.Value();
    OCCT_DUMP_FIELD_VALUES_DUMPED (theOStream, theDepth, aTriangulation.get())
  }
}